Abstract:

The soil carbon pool is the largest pool in terrestrial ecosystem. The model of Century, RothC and DNDC were used as examples, the principle of soil organic carbon change in the course of the three simulated, the current situation and problems of application were outlined. It was pointed out that future models of soil organic carbon should be tested to improve their prediction accuracy; on the other hand, the soil organic carbon models should be closely combined with the 3S technology to build large-scale databases and expand the range of simulation.