TITLE:
Above-Ground Biomass, Nutrients and Carbon in Aegiceras corniculatum of the Sundarbans
AUTHORS:
Mahmood Hossain, Md. Al-Amin Shaikh, Chameli Saha, S. M. Rubaiot Abdullah, Sanjoy Saha, Mohammad Raqibul Hasan Siddique
KEYWORDS:
Allometry, Biomass, Carbon, Nutrient, Sundarbans
JOURNAL NAME:
Open Journal of Forestry,
Vol.6 No.2,
February
4,
2016
ABSTRACT: Aegiceras
corniculatum grows as single-stemmed evergreen shrub or small tree in the Sundarbans mangrove forest of
Bangladesh. The objectives of this
study were to derive the allometric models for estimating above-ground
biomass, nutrients (N, P and K) and carbon stock in A. corniclatum. A total
of 8 linear models (y = aX + b, , y = aLogX + b, Logy
= aX + b, Logy = aLogX + b, y = alnX + b, Lny = aX + b and Lny = alnX + b) with
64 regression equations were tested to derive the allometric model for biomass
of each plant part; and nutrients and carbon stock in total aboveground
biomass. The best fit allometric models were selected by considering the values
of R2, CV, Rmse, MSerror, Sa, Sb,
F value, AICc and Furnival Index. The selected allometric models were
Logbiomass = 0.76LogDBH2 - 1.39; Biomass = 0.07DBH2 -
0.49; Logbiomass = 1.04LogDBH2 - 1.80; Logbiomass = 1.04LogDBH2 - 0.99; = 0.48DBH - 0.13 for leaves, branches, bark, stem without bark and total
above-ground biomass respectively. The selected allometric models for Nitrogen,
Phosphorous, Potassium and Carbon stock in total above-ground biomass were = 0.67DBH + 0.11; = 0.94DBH + 0.08; = 1.06DBH - 0.18; = 0.33DBH - 0.09 respectively.