土壤碳库是陆地生态系统的最大碳库。以Century、RothC和DNDC模型为例,对这3大模型的模拟原理和应用现状进行了概述,总结了其存在的问题,并指出未来的发展方向一方面应加强模型的验证以提高模拟精度,另一方面应与3S技术相结合建立大尺度数据库以扩大模拟范围。 Soil carbon stocks are the largest carbon pools in terrestrial ecosystems. Taking the Century, RothC and DNDC models as an example, the simulation principles and application status of the three models are summarized, the existing problems are summarized, and the future development direction is pointed out. On the one hand, the verification of models should be strengthened to improve the simulation accuracy, On the other hand, 3S technology should be combined with the establishment of large-scale database to expand the scope of simulation.