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以半分布式地形指数模型为基础,提出了水土保持措施地形指数的概念,对TOPMODEL进行了改进。利用植被指数NDVI进行了植被截留的时空差异分析。利用1992~1995年和1997年的逐日流量资料,对修河流域清江站以上水土流失较为严重的地区进行了梯田、经济果林、种草及水土保持林4种水土保持措施的水文效应模拟,该模型取得了较好的模拟效果。
Based on the semi-distributed topographic index model, the concept of topographic index for soil and water conservation measures is put forward and TOPMODEL is improved. Spatiotemporal variance analysis of vegetation interception using vegetation index NDVI. Using the daily flow data from 1992 to 1995 and 1997, the hydrological effects of four soil and water conservation measures such as terraced fields, economic fruit forests, grasslands and soil and water conservation forests were simulated in the areas with more serious soil erosion and soil loss above Qingjiang Station in the Xiuhe River basin The model has achieved good simulation results.