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Metcalfe, D. B., Meir, P., Aragao, L. E. O. C., Malhi, Y., da Costa, A, C. L., Braga, A., Gonçalves, P. H. L., de Athaydes, J., de Almeida, S. S., & Williams, M. (2007). Factors Controlling Spatio-Temporal Variation in Carbon Dioxide Efflux from Surface Litter, Roots, and Soil Organic Matter at Four Rain Forest Sites in the Eastern Amazon. Journal of Geophysical Research, 112, G04001.
https://doi.org/10.1029/2007JG000443

has been cited by the following article:

• TITLE: Soil CO2 Efflux Dynamics and Its Relationship with the Environmental Variables in a Sub-Tropical Mixed Forest

  AUTHORS: Deepa Dhital, Rabina Manandhar, Puruswattam Manandhar, Sanu Raja Maharjan

  KEYWORDS: Soil CO2 Efflux, Environmental Parameters, Temperature Sensitivity (Q10), Sub-Tropical Forest, Climate Change

  JOURNAL NAME: Open Journal of Forestry, Vol.12 No.3, June 15, 2022

  ABSTRACT: Soil CO2 efflux is an ongoing process of respiration from soil; plant parts/ microbes below the ground to the atmosphere which is known for faster cycling of carbon sources. A large portion of carbon sequestered and fixed by forests is returned to the atmosphere through soil CO2 efflux and multiple controlling parameters mainly temperature, precipitation, and growth factors interact with the soil CO2 efflux variation. This study assessed the soil CO2 efflux every month for consecutive 2-years (August 2015 to July 2017) by using the closed chamber method to determine the role of ecological parameters that govern the soil CO2 efflux and its temporal modification in a sub-tropical mixed forest of central region in Nepal. The results of this study manifested that soil CO2 efflux accounted 63.2% (y = 31.96e0.128x), 71.3% (y = 44.77e0.123x) and 64.5% (y = 44.11e0.117x) variations in soil temperature with significantly (p 10) of the soil CO2 efflux was 3.6, 3.4, and 3.2, respectively. Soil water content also expressed significantly (p 2 efflux and accounted 62.0% (y = 138.3e0.057x), 46.1% (y = 88.42e0.052x) and 40.5% (y = 133.1e0.0447x) in its variability in different years and the merged years. Evident variations of soil CO2 efflux, soil temperature, soil water content, and litter were observed in the forest seasonally and inter-annually. Two years mean total annual soil CO2 efflux of the forest was estimated at 904.76 g C·m-2·y-1. The study revealed that sub-tropical forests could be more influenced by precipitation regimes in progressing warm climates i.e. vulnerable to climate change, illustrating the comprehensive dynamics of the representative forest carbon cycle in the tropical region.