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以内蒙古自治区准格尔旗西黑岱沟小流域为研究区,基于研究区2004～2009年的气象和土壤侵蚀资料,选取林地、草地和休闲地三种不同土地利用方式的坡面,研究了WEPP模型在三种坡面土壤侵蚀过程模拟中的适用性。结果表明:WEPP模型对研究区三种管理方式下的土壤侵蚀模拟中总体结果较好,模拟值与实测值的相关系数均较高,分别为0.915、0.889和0.899;WEPP模型模拟林地和草地土壤侵蚀的纳什模型效率分别为0.661和0.775,说明WEPP模型适用性较强,而模拟休闲地侵蚀量时效率为负值,可能与休闲地受人为活动影响较大,导致模型不能很好地模拟实际情况有关。
Based on the data of meteorological and soil erosion from 2004 to 2009 in the study area, the Xiheidaigou small watershed in Zhunge’er County, Inner Mongolia Autonomous Region was selected as the study area to study the slope patterns of three land use types, including forest land, grassland and leisure land. Applicability of WEPP Model in Simulating Soil Erosion Process of Three Slope Types. The results show that the WEPP model has good overall results for soil erosion simulation under the three management methods in the study area, and the correlation coefficient between simulated and measured values is high, which are 0.915, 0.889 and 0.899, respectively; WEPP model simulates soil erosion of forest land and grassland The efficiency of erosion Nash model is 0.661 and 0.775, respectively, which shows that WEPP model is more applicable, while the simulated erosion erosive efficiency is negative, which may be affected by human activity more significantly than leisure, which leads to the model can not well simulate the actual The situation is relevant.