Abstract: [Objective] The project aims to verify the model performance of CoLM for the simulation on the typical oasis cropland ecosystem in Xinjiang,and analyze the characteristic of the land surface process.[Method] Two years of meteorological data from 2009 to 2010 in CN-Wul station were used to drive the land surface model,verify the model accuracy in this cropland site,and analyze the energy distribution characteristics,the daily and seasonal variations of this cropland ecosystem.[Result] The results showed that the energy flux:Rnet ＞ Qle ＞ Qh,the latent heat flux was the main part of the energy distribution;CoLM showed a good performance to the typical cropland ecosystem.[Conclusion] This land surface model can correctly describe the diurnal variation and seasonal variation of the energy flux,but of sensible heat flux in the field growth season is not ideal,because the simulation value is higher than that of the observations.

摘要： [目的]验证CoLM陆面模式对新疆典型绿洲农田生态系统的模拟效果,分析绿洲农田生态系统陆面过程特征.[方法]利用新疆沙湾县典型绿洲农田站点乌兰乌苏试验站2009～ 2010年两年的气象数据驱动陆面模式,验证模型精度,分析新疆典型绿洲农田生态系统能量分配,及其日、季变化特征.[结果]乌兰乌苏站站点能量通量表现为净辐射通量＞潜热通量＞感热通量,能量分配以潜热通量为主;CoLM陆而模式对站点能量通量的模拟结果较好.[结论]模型对各个能量分量的日变化、季节变化特征模拟均较好,但是对感热通量在农刚生长季的模拟不理想,模拟值较高.