Tree biomass and carbon stock of Falcata (Falcataria moluccana (Miq.) Barneby & J.W. Grimes) along different altitudinal gradients in the Province of Agusan Del Norte, Philippines

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Research Paper 07/05/2023
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Tree biomass and carbon stock of Falcata (Falcataria moluccana (Miq.) Barneby & J.W. Grimes) along different altitudinal gradients in the Province of Agusan Del Norte, Philippines

Roselyn L. Palaso, Nympha E. Branzuela, Edgar B. Solis
Int. J. Biosci.22( 5), 88-95, May 2023.
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Estimation of the tree biomass and carbon stock of F. moluccana along different altitudinal gradients was conducted at Agusan del Norte, Philippines. It followed a non-destructive method of sampling and used the allometric equation by ERDB 2008 and Cairns et al. (1997) for aboveground biomass and carbon stock, and belowground computation, respectively. Based on these results, F. moluccana planted at <150 masl had the highest aboveground biomass with 144.95Mg ha-1. The ANOVA at P<0.05 showed no significant difference in the aboveground biomass at different altitudinal gradients. However, the belowground biomass of F. moluccana at <150 masl was significantly higher than that of those planted at higher elevations. The carbon stock of F. moluccana is also highest at <150 masl and lowest at >450 masl with 90.57Mg C ha-1 and 54.44Mg C ha-1, respectively. ANOVA also suggested no significant difference in carbon stocks at different altitudinal gradients. Furthermore, correlation tests suggested a negative relationship between tree biomass, carbon stock, and altitudinal gradients.


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