No abstract

No abstract

No abstract

No 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 a X 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 R 2 , CV, Rmse, MSerror, Sa, Sb, F value, AICc and Furnival Index. The selected allometric models were Logbiomass = 0.76LogDBH 2 − 1.39; Biomass = 0.07DBH 2 − 0.49; Logbiomass = 1.04LogDBH 2 − 1.80; Logbiomass = 1.04LogDBH 2 − 0.99; Biomass = 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 Nitrogen = 0.67DBH + 0.11; Phosphorus = 0.94DBH + 0.08; Potassium = 1.06DBH − 0.18; Carbon = 0.33DBH − 0.09 respectively.