Authors: Xiaoying Shi Jiafu Mao Yingping Wang Yongjiu Dai Xuli Tang
Publish Date: 2011/08/19
Volume: 28, Issue: 5, Pages: 1129-
Abstract
A terrestrial biogeochemical model CASACNP was coupled to a land surface model the Common Land Model CoLM to simulate the dynamics of carbon substrate in soil and its limitation on soil respiration The combined model CoLM CASACNP was able to predict longterm carbon sources and sinks that CoLM alone could not The coupled model was tested using measurements of belowground respiration and surface fluxes from two forest ecosystems The combined model simulated reasonably well the diurnal and seasonal variations of net ecosystem carbon exchange as well as seasonal variation in the soil respiration rate of both the forest sites chosen for this study However the agreement between model simulations and actual measurements was poorer under dry conditions The model should be tested against more measurements before being applied globally to investigate the feedbacks between the carbon cycle and climate change
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