<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article  PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article"><front><journal-meta><journal-id journal-id-type="publisher-id">CUS</journal-id><journal-title-group><journal-title>Current Urban Studies</journal-title></journal-title-group><issn pub-type="epub">2328-4900</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/cus.2016.41004</article-id><article-id pub-id-type="publisher-id">CUS-64551</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Social Sciences&amp;Humanities</subject></subj-group></article-categories><title-group><article-title>
 
 
  Emerging Trends and New Developments on Urban Resilience: A Bibliometric Perspective
 
</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>o</surname><given-names>Pu</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Yanjun</surname><given-names>Qiu</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib></contrib-group><aff id="aff2"><addr-line>School of Civil and Engineering, Southwest Jiaotong University, Chengdu, China</addr-line></aff><aff id="aff1"><addr-line>School of Economics and Management, Southwest Jiaotong University, Chengdu, China</addr-line></aff><author-notes><corresp id="cor1">* E-mail:<email>ppuubo@hotmail.com(OP)</email>;</corresp></author-notes><pub-date pub-type="epub"><day>05</day><month>02</month><year>2016</year></pub-date><volume>04</volume><issue>01</issue><fpage>36</fpage><lpage>52</lpage><history><date date-type="received"><day>18</day>	<month>February</month>	<year>2016</year></date><date date-type="rev-recd"><day>accepted</day>	<month>13</month>	<year>March</year>	</date><date date-type="accepted"><day>16</day>	<month>March</month>	<year>2016</year></date></history><permissions><copyright-statement>&#169; Copyright  2014 by authors and Scientific Research Publishing Inc. </copyright-statement><copyright-year>2014</copyright-year><license><license-p>This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/</license-p></license></permissions><abstract><p>
 
 
  Urban resilience is concerned by the scholars in the world, especially in light of new uncertainty challenges for cities such as natural disasters and man-made disasters. We performed a bibiometric analysis on urban resilience research based on the 1296 articles in the SCI, SCIE, SSCI and A&amp;HCI database from 1986 to 2015. Publication trends were discussed in HistCite to reveal the publication outputs, subject categories and publication pattern, most prolific authors and international productivity. The document co-citation analysis was made in CiteSpace III to explore the research basements and research trajectories, emerging trends and new developments. Growth of article output has emerged since 2003. Environmental studies and environmental sciences came out the most urban resilience articles. Ecology and Society was the most productive journal in this area. Barthel was the most prolific author. USA and UK were the most productive countries, and Arizona State University was the most high-productive institution, but the cooperation is lacking in the worldwide. Two streams were detected from the co-cited papers. “Governance”, “climatechange” and “city” are research hotspots of urban resilience according to the strongest citation bursts of keywords, and Folke’s paper published in 2006 has the strongest bursts. Future research will focus on ecosystem service, adaptive capacity and human-dominated ecosystem.
 
</p></abstract><kwd-group><kwd>Urban Resilience</kwd><kwd> Bibliometric Analysis</kwd><kwd> Research Fronts</kwd><kwd> Burst Analysis</kwd><kwd> CiteSpace</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>1. Introduction</title><p>Urbanization is a vital social development in the 21st century, as the global proportion of urban population has increased from 28.3% to 50% in 2010. While man is facing all sorts of emerging uncertainty challenges in social progress, such as natural disasters (e.g. earthquake, flood, drought, climate change, etc.) and man-made disasters (e.g. environmental pollution, war, terrorism, etc.). Urban resilience is a significant capacity to adjust to stress from hazards and to recover quickly from their impacts from catastrophe. Indeed, urban resilience can be seen in the context of risk and vulnerability assessments, institutional and social governance structures, resilience in (or of) different sectors (e.g. ecosystem, economy, etc.), and transformations of urban areas. In other words, to strengthen urban resilience is beneficial to reduce the influence of urban disaster.</p><p>To develop opportunities for the sustainable development of cities, researchers from multiple disciplines are studying the feedback, dynamics, and behavior of urban vulnerability and urban resilience in the face of urban crisis, such as the axioms and mean of urban resilience  (Campanella, 2006;   Surjan et al., 2011;   Wilkinson, 2012;   Childers et al., 2014) , climate change and urban resilience  (Grimm et al., 2008;   Leichenko, 2011;   Tyler &amp; Moench, 2012) , spatial planning and urban resilience in the flood risk  (Deppisch &amp; Schaerffer, 2011;   Cruz et al., 2013;   Lu, 2014) , urban resilience and human-dominated ecosystems  (Ernstson et al., 2010) , urban infrastructure systems  (Wilbanks et al., 2012;   Ouyang &amp; Wang, 2015) , urban resilience index  (Attoh-Okine et al., 2009;   Sellberg et al., 2015) , urban social resilience  (Cutter et al., 2010;   Tate, 2012)  and resilient cities  (Godschalk, 2003;   Pickett et al., 2004;   Desouza &amp; Flanery, 2013;   Vale, 2014) . Further, topics on urban resilience and its related domain have become hot-debated focus  (Beilin &amp; Wilkinson, 2015) . It is necessary to describe the status qua on urban resilience studies for exploring the research basements and research fronts.</p><p>Some scholars have made some reviews on urban resilience or resilient cities  (Lang, 2011;   M&#252;ller, 2011;   Chelleri, 2012;   Jha et al., 2013;   Cartalis, 2014) , and bibliometric analysis could display the research performance and trajectories, emerging trends and new developments  (Chen, 2006;   Chen et al., 2014;   Wang &amp; Liu, 2014;   Kim &amp; Chen, 2015) , but a review used bibliomeric analysis has been not much. However some researchers focused on resilience research  (Xu et al., 2015;   Meerow &amp; Newell, 2015)  with bibliometric analysis. These studies could not get the map of the urban resilience research.</p><p>In this article, we will provide a comprehensive survey of the advance of urban resilience. More specifically, it aims to 1) present mainly publication outputs, subject categories and publication pattern, most-prolific authors and international productivity; 2) emerge the research basements and research trajectories by visualizing the citation network using CiteSpace III; 3) identify the research trends and new developments according to the keywords and cited references with strongest citation bursts.</p></sec><sec id="s2"><title>2. Data and Methods</title><p>We established an analysis database of urban resilience from the Science Citation Index (SCI), Science Citation Index Expanded (SCIE), Social Science Citation Index (SSCI) and Arts and Humanities Citation Index (A&amp;HCI) supported by Web of Science. “Urban resilience” or “resilient city” or “resilient cities” were used as keywords to search from 1st January, 1986 to 5th August, 2015. Then we removed duplicate articles and got 1296 related articles.</p><p>Many available tools are used by bibliometric research, such as HistCite, CiteSpace, VOSviewer and Sci<sup>2</sup> etc. HistCite is a flexible tool to provide research perspectives and information in our analysis database  (Garfield, 2009)  through GCS, LCS, LCR, LCS/t and GCS/t indicators, such as to analyze the classical literatures, to look for the productivity authors and institutions. Meanwhile, CiteSpace is popular to study the knowledge domain in a scientific field  (Chen et al., 2014) , can be used to analyze the knowledge basement and development track, to detect emerging trends and new developments.</p></sec><sec id="s3"><title>3. Empirical Results</title><sec id="s3_1"><title>3.1. Publication Outputs</title><p>There has become a rapid increase on urban resilience work since 2003, as showed in <xref ref-type="fig" rid="fig1">Figure 1</xref>. According to the curve of publication number on urban resilience research, two stages can be notified. Before 2003: The articles number kept a low level. In this period, many workers paid great attention to the high-risk and resilient children, psychosocial resilience, urban children with stress resilient and stress affect outcomes, talked about that how to improve the human development in the city. After 2003: With the climate change and disasters increasing in the world, how to promote the orderly development of the city had attracted the attention of scholars. Pursuers of diverse disciplines to conduct researches on the resilient city and urban resilience from different angles. And the publication number grew from 12 in 2003 to 215 in 2014 steeply.</p><p>Regarding publishing language, eight languages were discovered among 1296 articles. 1275, or 98.4%, of the articles were submitted in English. A few articles were published in Spanish (8), French (5), Portuguese (3), Slovenian (2), German (1), Polish (1) and Russian (1).</p></sec><sec id="s3_2"><title>3.2. Subject Categories and Publication Pattern</title><p>Several ISI-defined subject categories were included, such as environmental studies, environmental sciences, urban studies, ecology, geography etc. We presented the uppermost 10 subject categories in <xref ref-type="table" rid="table1">Table 1</xref>. The most common categories were environmental studies (260; 20.06%), environmental sciences (203; 15.66%), urban studies (176; 13.58%), ecology (141; 10.88). Meanwhile, we find out the urban resilience research has the nature of multidisciplinary, involves the environmental science, ecology, geography, psychology and social work etc.</p><fig id="fig1"  position="float"><label><xref ref-type="fig" rid="fig1">Figure 1</xref></label><caption><title> Growth of urban resilience study publications from 1986 to 2015</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/4-1150171x7.png"/></fig><table-wrap id="table1" ><label><xref ref-type="table" rid="table1">Table 1</xref></label><caption><title> Distribution of the subject categories: the top 10</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >Web of science subject category</th><th align="center" valign="middle" >TA</th><th align="center" valign="middle" >%</th></tr></thead><tr><td align="center" valign="middle" >Environmental studies</td><td align="center" valign="middle" >260</td><td align="center" valign="middle" >20.06</td></tr><tr><td align="center" valign="middle" >Environmental sciences</td><td align="center" valign="middle" >203</td><td align="center" valign="middle" >15.66</td></tr><tr><td align="center" valign="middle" >Urban studies</td><td align="center" valign="middle" >176</td><td align="center" valign="middle" >13.58</td></tr><tr><td align="center" valign="middle" >Ecology</td><td align="center" valign="middle" >141</td><td align="center" valign="middle" >10.88</td></tr><tr><td align="center" valign="middle" >Geography</td><td align="center" valign="middle" >128</td><td align="center" valign="middle" >9.88</td></tr><tr><td align="center" valign="middle" >Public environmental occupational health</td><td align="center" valign="middle" >109</td><td align="center" valign="middle" >8.41</td></tr><tr><td align="center" valign="middle" >Water resources</td><td align="center" valign="middle" >101</td><td align="center" valign="middle" >7.79</td></tr><tr><td align="center" valign="middle" >Geosciences multidisciplinary</td><td align="center" valign="middle" >69</td><td align="center" valign="middle" >5.32</td></tr><tr><td align="center" valign="middle" >Psychology developmental</td><td align="center" valign="middle" >69</td><td align="center" valign="middle" >5.32</td></tr><tr><td align="center" valign="middle" >Planning development</td><td align="center" valign="middle" >65</td><td align="center" valign="middle" >5.02</td></tr></tbody></table></table-wrap><p>TA, the number of articles on one subject category.</p><p>These 1296 urban resilience articles were issued in 604 ISI-indexed journals. Maximum 18 active journals (2.98% of the 604 journals) published 741 papers (21.84%) out of a total of 1296 articles, while 388 journals (64.24%) published only one paper. <xref ref-type="table" rid="table2">Table 2</xref> showed the 18 most common journals on urban resilience research, along with the number of articles, the number of the LSC, LSC/t, GCS, GCS/t and LCR received. The main publication journal for urban resilience research included Ecology and Society, Environment and Urbanization, Landscape and Urban Planning, Sustainability, Urban Studies and Cities. In Ecology and Society, 34 articles, or 2.62% out of the 1296 journals articles, were published, and received 543 GCS, 77.76 GCS/t and 22 LCR. Environment and Urbanization ranked second in terms of published numbers, with 28 articles, 43 LCS, 11.91 LCS/t, 218 GCS, 39.14 GCS/t and 20 LCR.</p></sec><sec id="s3_3"><title>3.3. Most-Prolific Authors and International Productivity</title><p>3624 authors concentrated on the urban resilience and published related articles. However, only 67 scholars produced more than 4 papers, accounting for 1.85% of the total scholars, 3267 authors only had one article. <xref ref-type="table" rid="table3">Table 3</xref> lists the 18 most productive authors, each with more than 5 published articles on related study. The most prolific author, Stephan Barthel and Rajib Shaw, had published 10 papers. Stephan Barthel work at Stockholm University in Sweden, with 47 LCS and 245 GCS. Rajib Shaw service for Kyoto University in Japan, with 4 LCS and 18 GCS. Other prolific authors included Kylie Bail, Emory L. Cowen, Peter A. Wyman, and so on. It is useful to mention that all the 18 most prolific scholars in <xref ref-type="table" rid="table3">Table 3</xref>, who come from developed countries.</p><table-wrap id="table2" ><label><xref ref-type="table" rid="table2">Table 2</xref></label><caption><title> Most active scholarly journals in urban resilience research</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Journal name</th><th align="center" valign="middle" >TA</th><th align="center" valign="middle" >TA%</th><th align="center" valign="middle" >LCS</th><th align="center" valign="middle" >LCS/t</th><th align="center" valign="middle" >GCS</th><th align="center" valign="middle" >GCS/t</th><th align="center" valign="middle" >LCR</th></tr></thead><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >Ecology and Society</td><td align="center" valign="middle" >34</td><td align="center" valign="middle" >2.62</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >543</td><td align="center" valign="middle" >77.76</td><td align="center" valign="middle" >22</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >Environment and Urbanization</td><td align="center" valign="middle" >28</td><td align="center" valign="middle" >2.16</td><td align="center" valign="middle" >43</td><td align="center" valign="middle" >11.91</td><td align="center" valign="middle" >218</td><td align="center" valign="middle" >39.14</td><td align="center" valign="middle" >20</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >Landscape and Urban Planning</td><td align="center" valign="middle" >25</td><td align="center" valign="middle" >1.93</td><td align="center" valign="middle" >60</td><td align="center" valign="middle" >10.10</td><td align="center" valign="middle" >300</td><td align="center" valign="middle" >54.46</td><td align="center" valign="middle" >33</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >Sustainability</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >1.47</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >26</td><td align="center" valign="middle" >8.33</td><td align="center" valign="middle" >18</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >Urban Studies</td><td align="center" valign="middle" >18</td><td align="center" valign="middle" >1.39</td><td align="center" valign="middle" >12</td><td align="center" valign="middle" >5.10</td><td align="center" valign="middle" >147</td><td align="center" valign="middle" >30.44</td><td align="center" valign="middle" >20</td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >Cities</td><td align="center" valign="middle" >17</td><td align="center" valign="middle" >1.31</td><td align="center" valign="middle" >12</td><td align="center" valign="middle" >4.75</td><td align="center" valign="middle" >62</td><td align="center" valign="middle" >22.95</td><td align="center" valign="middle" >33</td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >Global Environmental Change-Human and Policy Dimensions</td><td align="center" valign="middle" >15</td><td align="center" valign="middle" >1.16</td><td align="center" valign="middle" >38</td><td align="center" valign="middle" >8.08</td><td align="center" valign="middle" >192</td><td align="center" valign="middle" >44.21</td><td align="center" valign="middle" >20</td></tr><tr><td align="center" valign="middle" >8</td><td align="center" valign="middle" >Natural Hazards</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >1.08</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >1.86</td><td align="center" valign="middle" >92</td><td align="center" valign="middle" >17.45</td><td align="center" valign="middle" >1</td></tr><tr><td align="center" valign="middle" >9</td><td align="center" valign="middle" >Natural Hazards and Earth System Sciences</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >1.08</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >2.33</td><td align="center" valign="middle" >39</td><td align="center" valign="middle" >8.88</td><td align="center" valign="middle" >14</td></tr><tr><td align="center" valign="middle" >10</td><td align="center" valign="middle" >Building Research And Information</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >1.00</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >1.72</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >11.21</td><td align="center" valign="middle" >11</td></tr><tr><td align="center" valign="middle" >11</td><td align="center" valign="middle" >Habitat International</td><td align="center" valign="middle" >12</td><td align="center" valign="middle" >0.93</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >34</td><td align="center" valign="middle" >6.55</td><td align="center" valign="middle" >13</td></tr><tr><td align="center" valign="middle" >12</td><td align="center" valign="middle" >Water Science and Technology</td><td align="center" valign="middle" >12</td><td align="center" valign="middle" >0.93</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >1.67</td><td align="center" valign="middle" >77</td><td align="center" valign="middle" >11.23</td><td align="center" valign="middle" >3</td></tr><tr><td align="center" valign="middle" >13</td><td align="center" valign="middle" >PLoS ONE</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >0.85</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >45</td><td align="center" valign="middle" >16.00</td><td align="center" valign="middle" >1</td></tr><tr><td align="center" valign="middle" >14</td><td align="center" valign="middle" >Urban Education</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >0.85</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >0.79</td><td align="center" valign="middle" >149</td><td align="center" valign="middle" >15.70</td><td align="center" valign="middle" >6</td></tr><tr><td align="center" valign="middle" >15</td><td align="center" valign="middle" >American Journal of Community Psychology</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >0.77</td><td align="center" valign="middle" >33</td><td align="center" valign="middle" >2.51</td><td align="center" valign="middle" >251</td><td align="center" valign="middle" >23.15</td><td align="center" valign="middle" >15</td></tr><tr><td align="center" valign="middle" >16</td><td align="center" valign="middle" >Development and Psychopathology</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >0.77</td><td align="center" valign="middle" >44</td><td align="center" valign="middle" >2.31</td><td align="center" valign="middle" >780</td><td align="center" valign="middle" >52.23</td><td align="center" valign="middle" >3</td></tr><tr><td align="center" valign="middle" >17</td><td align="center" valign="middle" >Environmental Hazards-Human and Policy Dimensions</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >0.77</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >0.62</td><td align="center" valign="middle" >34</td><td align="center" valign="middle" >6.04</td><td align="center" valign="middle" >7</td></tr><tr><td align="center" valign="middle" >18</td><td align="center" valign="middle" >Urban Ecosystems</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >0.77</td><td align="center" valign="middle" >2</td><td align="center" valign="middle" >0.67</td><td align="center" valign="middle" >36</td><td align="center" valign="middle" >10.60</td><td align="center" valign="middle" >2</td></tr></tbody></table></table-wrap><p>TA, total number of articles; TA%, the percentage in the 3085 articles; LCS, local citation scores; LCS/t, local citation scores per year; GCS, global citation scores; GCS/t, global citation scores per year; LCR, local citied references.</p><table-wrap id="table3" ><label><xref ref-type="table" rid="table3">Table 3</xref></label><caption><title> The 18 most-productive authors</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Author name</th><th align="center" valign="middle" >Full name</th><th align="center" valign="middle" >TA</th><th align="center" valign="middle" >LCS</th><th align="center" valign="middle" >LCS/t</th><th align="center" valign="middle" >GCS</th><th align="center" valign="middle" >GCS/t</th><th align="center" valign="middle" >Institute</th></tr></thead><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >Barthel S</td><td align="center" valign="middle" >Stephan Barthel</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >11.67</td><td align="center" valign="middle" >245</td><td align="center" valign="middle" >48.70</td><td align="center" valign="middle" >Stockholm University</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >Shaw R</td><td align="center" valign="middle" >Rajib Shaw</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >0.79</td><td align="center" valign="middle" >18</td><td align="center" valign="middle" >4.36</td><td align="center" valign="middle" >Kyoto University</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >Bail K</td><td align="center" valign="middle" >Kylie Bail</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >1.83</td><td align="center" valign="middle" >69</td><td align="center" valign="middle" >15.75</td><td align="center" valign="middle" >Deakin University</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >Cowen EL</td><td align="center" valign="middle" >Emory L. Cowen</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >70</td><td align="center" valign="middle" >3.28</td><td align="center" valign="middle" >342</td><td align="center" valign="middle" >16.02</td><td align="center" valign="middle" >University of Rochester</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >Wyman PA</td><td align="center" valign="middle" >Peter A. Wyman</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >70</td><td align="center" valign="middle" >3.28</td><td align="center" valign="middle" >342</td><td align="center" valign="middle" >16.02</td><td align="center" valign="middle" >University of Rochester</td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >Colding J</td><td align="center" valign="middle" >Johan Colding</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >39</td><td align="center" valign="middle" >7.67</td><td align="center" valign="middle" >218</td><td align="center" valign="middle" >32.53</td><td align="center" valign="middle" >Stockholm University</td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >Elmqvist T</td><td align="center" valign="middle" >Thomas Elmqvist</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >33</td><td align="center" valign="middle" >6.00</td><td align="center" valign="middle" >168</td><td align="center" valign="middle" >23.57</td><td align="center" valign="middle" >Stockholm University</td></tr><tr><td align="center" valign="middle" >8</td><td align="center" valign="middle" >Work WC</td><td align="center" valign="middle" >William C. Work</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >68</td><td align="center" valign="middle" >3.15</td><td align="center" valign="middle" >336</td><td align="center" valign="middle" >15.62</td><td align="center" valign="middle" >University of Rochester</td></tr><tr><td align="center" valign="middle" >9</td><td align="center" valign="middle" >Brown RR</td><td align="center" valign="middle" >Rebekah R. Brown</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >2.14</td><td align="center" valign="middle" >36</td><td align="center" valign="middle" >10.10</td><td align="center" valign="middle" >Monash University</td></tr><tr><td align="center" valign="middle" >10</td><td align="center" valign="middle" >Ernstson H</td><td align="center" valign="middle" >Henrik Ernstson</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >33</td><td align="center" valign="middle" >6.83</td><td align="center" valign="middle" >183</td><td align="center" valign="middle" >34.38</td><td align="center" valign="middle" >Stockholm University</td></tr><tr><td align="center" valign="middle" >11</td><td align="center" valign="middle" >Masten AS</td><td align="center" valign="middle" >Ann S. Mastern</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >18</td><td align="center" valign="middle" >1.21</td><td align="center" valign="middle" >458</td><td align="center" valign="middle" >36.64</td><td align="center" valign="middle" >University of Minnesota Twin Cities</td></tr><tr><td align="center" valign="middle" >12</td><td align="center" valign="middle" >Bradley B</td><td align="center" valign="middle" >Bekh Bradley</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >2</td><td align="center" valign="middle" >0.40</td><td align="center" valign="middle" >37</td><td align="center" valign="middle" >7.97</td><td align="center" valign="middle" >Emory University School of Medicine</td></tr><tr><td align="center" valign="middle" >13</td><td align="center" valign="middle" >Broto VC</td><td align="center" valign="middle" >Vanesa Castan Broto</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >2.00</td><td align="center" valign="middle" >44</td><td align="center" valign="middle" >16.5</td><td align="center" valign="middle" >University College London</td></tr><tr><td align="center" valign="middle" >14</td><td align="center" valign="middle" >Crawford D</td><td align="center" valign="middle" >David Crawford</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >1.58</td><td align="center" valign="middle" >59</td><td align="center" valign="middle" >12.58</td><td align="center" valign="middle" >Deakin University</td></tr><tr><td align="center" valign="middle" >15</td><td align="center" valign="middle" >Pickett STA</td><td align="center" valign="middle" >Steward T.A. Pickett</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >36</td><td align="center" valign="middle" >4.58</td><td align="center" valign="middle" >131</td><td align="center" valign="middle" >20.00</td><td align="center" valign="middle" >Cary Institution of Ecosystem Studies</td></tr><tr><td align="center" valign="middle" >16</td><td align="center" valign="middle" >Ressler KJ</td><td align="center" valign="middle" >Kerry J. Ressler</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >3</td><td align="center" valign="middle" >0.54</td><td align="center" valign="middle" >63</td><td align="center" valign="middle" >10.82</td><td align="center" valign="middle" >Emory University School of Medicine</td></tr><tr><td align="center" valign="middle" >17</td><td align="center" valign="middle" >Wallace R</td><td align="center" valign="middle" >Rodrick Wallace</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >0.68</td><td align="center" valign="middle" >51</td><td align="center" valign="middle" >4.41</td><td align="center" valign="middle" >New York State Psychiatric Institution</td></tr><tr><td align="center" valign="middle" >18</td><td align="center" valign="middle" >Zevenbergen C</td><td align="center" valign="middle" >Chris Zevenbergen</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >1.86</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >8.13</td><td align="center" valign="middle" >UNESCO-IHE</td></tr></tbody></table></table-wrap><p>TA, total number of articles; LCS, local citation score; LCS/t, local citation scores per year; GCS, global citation score; GCS/t, global citation scores per year.</p><p>The 1296 urban resilience research articles were scattered geographic distribution in the world, and gathered mainly in the developed country. Five countries or regions contribute to the urban resilience research articles more than 50 papers, most of the countries or territories published less than 10 articles. United State was the most industrious country with 510 articles, and got the largest LCS (452) and GCS (8391), and had the largest average citation rate of LCS (0.89) and GCS (16.45). UK was the succeeding productive country with 203 articles, and received the second LCS (134) and GCS (1987). Australia was the third productive country (125), followed Canada (80) and Netherlands (52). Other prolific countries included Sweden (46), Germany (43), China (39), South Africa (39), and so on. More interestingly, the result confirmed that most of developed countries with post-urbanization paid attention to the urban resilience specially, and just a few developing countries with rapid urbanization has begun to emphasize the related research, such as China, South Africa, Brazil, India (see <xref ref-type="table" rid="table4">Table 4</xref>).</p><p>Institution distribution of urban resilience research was gathered, and mainly concentrated in several developed countries, such as USA, UK and Australia. <xref ref-type="table" rid="table5">Table 5</xref> displayed the 21 most fruitful research institutions, each with more than 13 articles. Arizona State University was the most high-producing institution with 27 articles (2.08% of the 1296 articles), followed closely by Stockholm University (24), University of Maryland (21), Yale University (21). About the urban resilience research, there are several sub-institutions in Arizona State University, such as school of sustainability, school of social work, school of geography science and urban planning et al. It is necessary to say that Stockholm Resilience Centre was established on 1st January 2007, to advances research on the governance of social-ecological systems with a special emphasis on resilience.</p></sec><sec id="s3_4"><title>3.4. Research Basement and Research Trajectories</title><p>According to the <xref ref-type="fig" rid="fig2">Figure 2</xref> and <xref ref-type="table" rid="table6">Table 6</xref>, two research streams have been formed. A big stream (A) as <xref ref-type="fig" rid="fig2">Figure 2</xref> on the right, which paid more attention to urban resilience in the ecology perspective. It was started by  Holling’s (1973)  paper called “resilience and stability of ecological systems” in Annual review of ecology and systematics. These studies focused on resilience theory  (Gunderson &amp; Holling, 2002;   Adger, 2006;   Smit &amp; Wandel, 2006) , the resilience of ecological system  (Holling, 1973;   Grimm et al., 2000) , the resilience of social-ecological system  (Adger, 2000;   Folke et al., 2005;   Folke, 2006) , resilient city  (Pelling, 2003;   Pickett et al., 2004;   Grimm et al., 2008) , disaster and resilience  (Carpenter et al., 2001;   Berkes et al., 2003;   Wisner et al., 2004) . Another stream (B) concentrated on the psychology and resilience  (Rutter, 1987;   Masten et al., 1990;   Luthar et al., 2000) , high-risk children and resilience  (Werner &amp; Smit, 1982;   Werner &amp; Smith, 1992) .</p><table-wrap id="table4" ><label><xref ref-type="table" rid="table4">Table 4</xref></label><caption><title> Top 20 productive country of urban resilience research</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Country</th><th align="center" valign="middle" >TA</th><th align="center" valign="middle" >TA%</th><th align="center" valign="middle" >LCS</th><th align="center" valign="middle" >LCS/TA</th><th align="center" valign="middle" >GCS</th><th align="center" valign="middle" >GCS/TA</th></tr></thead><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >USA</td><td align="center" valign="middle" >510</td><td align="center" valign="middle" >39.35</td><td align="center" valign="middle" >452</td><td align="center" valign="middle" >0.89</td><td align="center" valign="middle" >8391</td><td align="center" valign="middle" >16.45</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >UK</td><td align="center" valign="middle" >203</td><td align="center" valign="middle" >15.66</td><td align="center" valign="middle" >134</td><td align="center" valign="middle" >0.66</td><td align="center" valign="middle" >1987</td><td align="center" valign="middle" >9.79</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >Australia</td><td align="center" valign="middle" >125</td><td align="center" valign="middle" >9.65</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >0.38</td><td align="center" valign="middle" >773</td><td align="center" valign="middle" >6.18</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >Canada</td><td align="center" valign="middle" >80</td><td align="center" valign="middle" >6.17</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >0.14</td><td align="center" valign="middle" >535</td><td align="center" valign="middle" >6.69</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >Netherlands</td><td align="center" valign="middle" >52</td><td align="center" valign="middle" >4.01</td><td align="center" valign="middle" >34</td><td align="center" valign="middle" >0.65</td><td align="center" valign="middle" >288</td><td align="center" valign="middle" >5.54</td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >Sweden</td><td align="center" valign="middle" >46</td><td align="center" valign="middle" >3.55</td><td align="center" valign="middle" >90</td><td align="center" valign="middle" >1.96</td><td align="center" valign="middle" >573</td><td align="center" valign="middle" >12.46</td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >Germany</td><td align="center" valign="middle" >43</td><td align="center" valign="middle" >3.32</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >0.37</td><td align="center" valign="middle" >219</td><td align="center" valign="middle" >5.09</td></tr><tr><td align="center" valign="middle" >8</td><td align="center" valign="middle" >China</td><td align="center" valign="middle" >39</td><td align="center" valign="middle" >3.01</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >0.49</td><td align="center" valign="middle" >303</td><td align="center" valign="middle" >7.77</td></tr><tr><td align="center" valign="middle" >9</td><td align="center" valign="middle" >South Africa</td><td align="center" valign="middle" >39</td><td align="center" valign="middle" >3.01</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >1.21</td><td align="center" valign="middle" >261</td><td align="center" valign="middle" >6.69</td></tr><tr><td align="center" valign="middle" >10</td><td align="center" valign="middle" >Italy</td><td align="center" valign="middle" >38</td><td align="center" valign="middle" >2.93</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >0.29</td><td align="center" valign="middle" >233</td><td align="center" valign="middle" >6.13</td></tr><tr><td align="center" valign="middle" >11</td><td align="center" valign="middle" >Spain</td><td align="center" valign="middle" >36</td><td align="center" valign="middle" >2.78</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >0.17</td><td align="center" valign="middle" >272</td><td align="center" valign="middle" >7.56</td></tr><tr><td align="center" valign="middle" >12</td><td align="center" valign="middle" >France</td><td align="center" valign="middle" >31</td><td align="center" valign="middle" >2.39</td><td align="center" valign="middle" >26</td><td align="center" valign="middle" >0.84</td><td align="center" valign="middle" >195</td><td align="center" valign="middle" >6.29</td></tr><tr><td align="center" valign="middle" >13</td><td align="center" valign="middle" >Japan</td><td align="center" valign="middle" >23</td><td align="center" valign="middle" >1.77</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >0.22</td><td align="center" valign="middle" >38</td><td align="center" valign="middle" >1.65</td></tr><tr><td align="center" valign="middle" >14</td><td align="center" valign="middle" >Brazil</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >1.47</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >0.00</td><td align="center" valign="middle" >171</td><td align="center" valign="middle" >9.00</td></tr><tr><td align="center" valign="middle" >15</td><td align="center" valign="middle" >New Zealand</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >1.47</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >0.47</td><td align="center" valign="middle" >296</td><td align="center" valign="middle" >15.58</td></tr><tr><td align="center" valign="middle" >16</td><td align="center" valign="middle" >Belgium</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >1.23</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >0.25</td><td align="center" valign="middle" >86</td><td align="center" valign="middle" >5.38</td></tr><tr><td align="center" valign="middle" >17</td><td align="center" valign="middle" >India</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >1.23</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >0.25</td><td align="center" valign="middle" >68</td><td align="center" valign="middle" >4.25</td></tr><tr><td align="center" valign="middle" >18</td><td align="center" valign="middle" >Switzerland</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >1.23</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >0.25</td><td align="center" valign="middle" >173</td><td align="center" valign="middle" >10.81</td></tr><tr><td align="center" valign="middle" >19</td><td align="center" valign="middle" >Israel</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >1.08</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >0.36</td><td align="center" valign="middle" >129</td><td align="center" valign="middle" >9.21</td></tr><tr><td align="center" valign="middle" >20</td><td align="center" valign="middle" >Portugal</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >0.85</td><td align="center" valign="middle" >2</td><td align="center" valign="middle" >0.18</td><td align="center" valign="middle" >44</td><td align="center" valign="middle" >4.00</td></tr></tbody></table></table-wrap><p>TA, total number of articles; TA%, the percentage of the 3085 article; LCS, local citation score; GCS, global citation score.</p><table-wrap id="table5" ><label><xref ref-type="table" rid="table5">Table 5</xref></label><caption><title> Top 21 productive research institutions of urban resilience research</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Institution</th><th align="center" valign="middle" >TA</th><th align="center" valign="middle" >TA%</th><th align="center" valign="middle" >LCS</th><th align="center" valign="middle" >GCS</th></tr></thead><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >Arizona State University</td><td align="center" valign="middle" >27</td><td align="center" valign="middle" >2.08</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >727</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >Stockholm University</td><td align="center" valign="middle" >24</td><td align="center" valign="middle" >1.85</td><td align="center" valign="middle" >83</td><td align="center" valign="middle" >501</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >University of Maryland</td><td align="center" valign="middle" >21</td><td align="center" valign="middle" >1.62</td><td align="center" valign="middle" >9</td><td align="center" valign="middle" >484</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >Yale University</td><td align="center" valign="middle" >21</td><td align="center" valign="middle" >1.62</td><td align="center" valign="middle" >27</td><td align="center" valign="middle" >443</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >University College London</td><td align="center" valign="middle" >20</td><td align="center" valign="middle" >1.54</td><td align="center" valign="middle" >20</td><td align="center" valign="middle" >180</td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >Columbia University</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >1.47</td><td align="center" valign="middle" >30</td><td align="center" valign="middle" >439</td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >Monash University</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >1.47</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >110</td></tr><tr><td align="center" valign="middle" >8</td><td align="center" valign="middle" >University Melbourne</td><td align="center" valign="middle" >18</td><td align="center" valign="middle" >1.39</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >122</td></tr><tr><td align="center" valign="middle" >9</td><td align="center" valign="middle" >Harvard University</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >1.23</td><td align="center" valign="middle" >4</td><td align="center" valign="middle" >176</td></tr><tr><td align="center" valign="middle" >10</td><td align="center" valign="middle" >US Forest Service</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >1.23</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >130</td></tr><tr><td align="center" valign="middle" >11</td><td align="center" valign="middle" >University Birmingham</td><td align="center" valign="middle" >15</td><td align="center" valign="middle" >1.16</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >85</td></tr><tr><td align="center" valign="middle" >12</td><td align="center" valign="middle" >University N Carolina</td><td align="center" valign="middle" >15</td><td align="center" valign="middle" >1.16</td><td align="center" valign="middle" >22</td><td align="center" valign="middle" >351</td></tr><tr><td align="center" valign="middle" >13</td><td align="center" valign="middle" >University Wisconsin</td><td align="center" valign="middle" >15</td><td align="center" valign="middle" >1.16</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >339</td></tr><tr><td align="center" valign="middle" >14</td><td align="center" valign="middle" >Emory University</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >1.08</td><td align="center" valign="middle" >10</td><td align="center" valign="middle" >255</td></tr><tr><td align="center" valign="middle" >15</td><td align="center" valign="middle" >University Colorado</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >1.08</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >675</td></tr><tr><td align="center" valign="middle" >16</td><td align="center" valign="middle" >University Manchester</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >1.08</td><td align="center" valign="middle" >30</td><td align="center" valign="middle" >154</td></tr><tr><td align="center" valign="middle" >17</td><td align="center" valign="middle" >Deakin University</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >1.00</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >86</td></tr><tr><td align="center" valign="middle" >18</td><td align="center" valign="middle" >Kings College London</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >1.00</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >187</td></tr><tr><td align="center" valign="middle" >19</td><td align="center" valign="middle" >Kyoto University</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >1.00</td><td align="center" valign="middle" >5</td><td align="center" valign="middle" >28</td></tr><tr><td align="center" valign="middle" >20</td><td align="center" valign="middle" >University British Columbia</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >1.00</td><td align="center" valign="middle" >3</td><td align="center" valign="middle" >127</td></tr><tr><td align="center" valign="middle" >21</td><td align="center" valign="middle" >University California Berkeley</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >1.00</td><td align="center" valign="middle" >11</td><td align="center" valign="middle" >198</td></tr></tbody></table></table-wrap><p>TA, total number of articles; TA%, the percentage in the 3085 article; LCS, local citation score; GCS, global citation score.</p><fig id="fig2"  position="float"><label><xref ref-type="fig" rid="fig2">Figure 2</xref></label><caption><title> Co-cited of paper on the urban resilience</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/4-1150171x8.png"/></fig><table-wrap id="table6" ><label><xref ref-type="table" rid="table6">Table 6</xref></label><caption><title> Research basements and research streams</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Article information</th><th align="center" valign="middle" >Frequence</th><th align="center" valign="middle" >Stream</th></tr></thead><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >Holling, 1973 , Annual Rev Ecol Syst, V4, P1</td><td align="center" valign="middle" >97</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >Folke, 2006 , GLOBAL ENVIRON CHANG, V16, P253</td><td align="center" valign="middle" >85</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >Luthar et al., 2000 , CHILD DEV, V71, P543</td><td align="center" valign="middle" >69</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >Gunderson &amp; Holling, 2002 , PANARCHY UNDERSTANDI</td><td align="center" valign="middle" >58</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >Rutter, 1987 , AM J ORTHOPSYCHIAT, V57, P316</td><td align="center" valign="middle" >48</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >Walker et al., 2004 , ECOL SOC, V9</td><td align="center" valign="middle" >46</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >Masten, 2001 , AM PSYCHOL, V56, P227</td><td align="center" valign="middle" >44</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >8</td><td align="center" valign="middle" >Adger, 2000 , PROG HUM GEOG, V24, P347</td><td align="center" valign="middle" >42</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >9</td><td align="center" valign="middle" >Walker et al., 2006 , RESILIENCE THINKING</td><td align="center" valign="middle" >40</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >10</td><td align="center" valign="middle" >Berkes et al., 2003 , NAVIGATING SOCIAL EC</td><td align="center" valign="middle" >38</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >11</td><td align="center" valign="middle" >Grimm et al., 2008 , SCIENCE, V319, P756</td><td align="center" valign="middle" >37</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >12</td><td align="center" valign="middle" >Pelling, 2003 , VULNERABILITY CITIES</td><td align="center" valign="middle" >37</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >13</td><td align="center" valign="middle" >Werner &amp; Smith, 1992 , OVERCOMING ODDS HIGH</td><td align="center" valign="middle" >37</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >14</td><td align="center" valign="middle" >Masten et al., 1990 , DEV PSYCHOPATHOL, V2, P425</td><td align="center" valign="middle" >36</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >15</td><td align="center" valign="middle" >Smit &amp; Wandel, 2006 , GLOBAL ENVIRON CHANG, V16, P282</td><td align="center" valign="middle" >35</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >16</td><td align="center" valign="middle" >Carpenter et al., 2001 , ECOSYSTEMS, V4, P765</td><td align="center" valign="middle" >34</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >17</td><td align="center" valign="middle" >Werner &amp; Smit, 1982 , VULNERABLE INVINCIBL</td><td align="center" valign="middle" >33</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >18</td><td align="center" valign="middle" >Folke et al., 2005 , ANNU REV ENV RESOUR, V30, P441</td><td align="center" valign="middle" >32</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >19</td><td align="center" valign="middle" >Adger, 2006 , GLOBAL ENVIRON CHANG, V16, P268</td><td align="center" valign="middle" >31</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >20</td><td align="center" valign="middle" >Grimm et al., 2000 , BIOSCIENCE, V50, P571</td><td align="center" valign="middle" >31</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >21</td><td align="center" valign="middle" >Masten &amp; Coatsworth, 1998 , AM PSYCHOL, V53, P205</td><td align="center" valign="middle" >31</td><td align="center" valign="middle" >B</td></tr><tr><td align="center" valign="middle" >22</td><td align="center" valign="middle" >Pickett et al., 2004 , LANDSCAPE URBAN PLAN, V69, P369</td><td align="center" valign="middle" >31</td><td align="center" valign="middle" >A</td></tr><tr><td align="center" valign="middle" >23</td><td align="center" valign="middle" >Wisner et al., 2004 , RISK NATURAL HAZARDS, V2nd</td><td align="center" valign="middle" >30</td><td align="center" valign="middle" >A</td></tr></tbody></table></table-wrap></sec></sec>
<sec id="s4"><title>4. Emerging Trends and New Developments</title>
<sec id="s4_1"><title>4.1. Temporal Evolution of Keywords</title>
<p>Keywords are vital components of the article, and it will show the research focus to analyze the keywords frequency and keywords centricity. As <xref ref-type="table" rid="table7">Table 7</xref> showed, in the past study, according to frequency the top 10 keywords were resilience, vulnerability, management, cities, risk, adaptation, systems, children, climate change and urban. However, the top six keywords were biodiversity, adolescents, youth, resilience, ecosystem services and vulnerability, looking from the keywords centrality. United-states as a keyword, had been mentioned 43 times with 0.01 centrality. There are limited reasons, firstly many scholars are interested in urban resilience in USA, and secondly USA is the representative of the developed country.</p>
<p>Similarly, keywords will identify research fronts to explore the burstness of keywords. Some fast growing topics will be detected by analyzing busts. As <xref ref-type="table" rid="table8">Table 8</xref> showed, competence has the strongest bursts among</p><table-wrap id="table7" ><label><xref ref-type="table" rid="table7">Table 7</xref></label><caption><title> Top 24 keywords frequence and centrality</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Keywords</th><th align="center" valign="middle" >Frequence</th><th align="center" valign="middle" >Centrality</th><th align="center" valign="middle" >Year</th><th align="center" valign="middle" >#</th><th align="center" valign="middle" >Keywords</th><th align="center" valign="middle" >Frequence</th><th align="center" valign="middle" >Centrality</th><th align="center" valign="middle" >Year</th></tr></thead><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >Resilience</td><td align="center" valign="middle" >484</td><td align="center" valign="middle" >0.15</td><td align="center" valign="middle" >1993</td><td align="center" valign="middle" >13</td><td align="center" valign="middle" >Health</td><td align="center" valign="middle" >62</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2002</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >Climate-change</td><td align="center" valign="middle" >155</td><td align="center" valign="middle" >0.07</td><td align="center" valign="middle" >2007</td><td align="center" valign="middle" >14</td><td align="center" valign="middle" >Biodiversity</td><td align="center" valign="middle" >56</td><td align="center" valign="middle" >0.42</td><td align="center" valign="middle" >2004</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >Vulnerability</td><td align="center" valign="middle" >128</td><td align="center" valign="middle" >0.09</td><td align="center" valign="middle" >1995</td><td align="center" valign="middle" >15</td><td align="center" valign="middle" >Adolescents</td><td align="center" valign="middle" >55</td><td align="center" valign="middle" >0.30</td><td align="center" valign="middle" >1993</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >Management</td><td align="center" valign="middle" >116</td><td align="center" valign="middle" >0.08</td><td align="center" valign="middle" >2004</td><td align="center" valign="middle" >16</td><td align="center" valign="middle" >City</td><td align="center" valign="middle" >53</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2004</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >Cities</td><td align="center" valign="middle" >106</td><td align="center" valign="middle" >0.05</td><td align="center" valign="middle" >2004</td><td align="center" valign="middle" >17</td><td align="center" valign="middle" >Ecosystem services</td><td align="center" valign="middle" >52</td><td align="center" valign="middle" >0.13</td><td align="center" valign="middle" >2005</td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >Risk</td><td align="center" valign="middle" >92</td><td align="center" valign="middle" >0.03</td><td align="center" valign="middle" >1996</td><td align="center" valign="middle" >18</td><td align="center" valign="middle" >Governance</td><td align="center" valign="middle" >47</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2013</td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >Adaptation</td><td align="center" valign="middle" >90</td><td align="center" valign="middle" >0.07</td><td align="center" valign="middle" >2010</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >Youth</td><td align="center" valign="middle" >46</td><td align="center" valign="middle" >0.19</td><td align="center" valign="middle" >1994</td></tr><tr><td align="center" valign="middle" >8</td><td align="center" valign="middle" >Systems</td><td align="center" valign="middle" >84</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2008</td><td align="center" valign="middle" >20</td><td align="center" valign="middle" >Framework</td><td align="center" valign="middle" >46</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2010</td></tr><tr><td align="center" valign="middle" >9</td><td align="center" valign="middle" >Children</td><td align="center" valign="middle" >80</td><td align="center" valign="middle" >0.04</td><td align="center" valign="middle" >1993</td><td align="center" valign="middle" >21</td><td align="center" valign="middle" >Stress</td><td align="center" valign="middle" >43</td><td align="center" valign="middle" >0.08</td><td align="center" valign="middle" >1993</td></tr><tr><td align="center" valign="middle" >10</td><td align="center" valign="middle" >Urban</td><td align="center" valign="middle" >71</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2001</td><td align="center" valign="middle" >22</td><td align="center" valign="middle" >United-states</td><td align="center" valign="middle" >43</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >1993</td></tr><tr><td align="center" valign="middle" >11</td><td align="center" valign="middle" >Sustainability</td><td align="center" valign="middle" >69</td><td align="center" valign="middle" >0.04</td><td align="center" valign="middle" >2004</td><td align="center" valign="middle" >23</td><td align="center" valign="middle" >Impact</td><td align="center" valign="middle" >42</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2005</td></tr><tr><td align="center" valign="middle" >12</td><td align="center" valign="middle" >Social-ecological systems</td><td align="center" valign="middle" >62</td><td align="center" valign="middle" >0.05</td><td align="center" valign="middle" >2010</td><td align="center" valign="middle" >24</td><td align="center" valign="middle" >Urbanization</td><td align="center" valign="middle" >42</td><td align="center" valign="middle" >0.01</td><td align="center" valign="middle" >2007</td></tr></tbody></table></table-wrap></sec></sec></body>
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