Net primary productivity estimation and its relationship with tree diversity for tropical dry deciduous forests of central India

作者：Kale Manish P^*; Roy P S

来源：Biodiversity and Conservation, 2012, 21(5): 1199-1214.

DOI：10.1007/s10531-012-0226-1

• Biodiversity
• Biomass
• Carbon
• Light use efficiency
• Net primary productivity
• Production efficiency model

Present study aims at estimation and validation of net primary productivity (NPP) using production efficiency model (PEM), and its possible relationship with tree diversity. The PEM estimates NPP, based on light use efficiency (LUE) and intercepted photosynthetically active radiation (IPAR). Weighted average LUE varied between 0.02 gC/mu mol/m(2) of PAR (Mixed forest (miscellaneous)) to 0.08 gC/mu mol/m(2) of PAR (Acacia forest), in growing phase (GP), and 0.0008 gC/mu mol/m(2) of PAR (Boswellia mixed forest) to 0.023 gC/mu mol/m(2) of PAR (Acacia forest) during the senescent phase (SP). The average weighted LUE for tropical dry and Moist deciduous forest (MDF) in GP were 0.05 gC/mu mol/m(2) of PAR and 0.03 gC/mu mol/m(2) of PAR, respectively. The average IPAR for different forest types was 2079.58 mu mol/m(2)/s during GP and 1510.58 mu mol/m(2)/s during SP. The PEM based NPP varied between 0.58-275.78 gC/m(2)/year during GP and 0.43-74.34 gC/m(2)/year during SP. The PEM based NPP and conventional (ground based) NPP were related with R (2) of 0.55. The tree diversity and NPP relationship was observed with R (2) of 0.55 at the level of both plot and forest types.

• 出版日期2012-5