镶黄旗水土流失综合治理模式初探

镶黄旗水土流失十分严重，水土流失面积占该旗总面积的44%。有部分区域水土流失已达到极强度侵蚀，土壤侵蚀模数高达9000t/（km²·a）以上，沟壑密度2km/km²，植被盖度仅为15%。镶黄旗敖古特勒经调查分析是该旗水土流失严重区域的典型代表，对这一区域的自然因素和人为因素对水土流失的影响进行了测试分析，主要研究了降雨、坡度、坡长、植被因素对土壤侵蚀的影响关系；人类生息活动、畜牧业生产活动对土壤侵蚀的影响。在水土流失影响因素分析的基础上，根据治理措施测

Comprehensive Harnessive Model of Soil and Water Loss in Xianghuang County

The soil and water loss is very severe in Xianghuang county, this area is more 44%of the total area. Somewhere gives the most erosion of soil and water and has more 9 000t/(km²·a) of soil erode model, 2km/km² of gully erode density and only 15% of vegetable cover.The Aogutele is the typical representative region of severe soil and water loss, here it is analysed to both natural and human kind factors influenced soil and water erosion. It mainly be researched the relationships of rainfall, slope degree, slope length, vegetable cover and soil erosion. hased on the analysis and harnessing results, the comprehensive control model of soil andwater loss has been put out.