晋西地区侵蚀强度区域分异的原因分析

Causes for Area Distinction of Erosion Intensity in Loess Hilly Areas of Western Shanxi Province

黄土丘陵区土壤侵蚀强度的空间、时间变化 ,是自然因素和人为因素区域差异的综合反映。自然因素主要包括影响侵蚀的地表组成物质、植被覆盖度、地形地貌及降雨等。人为因素主要是指人类活动影响侵蚀加速和水土保持治理程度。在土壤侵蚀遥感调查的基础上 。

The changes of loess hilly area erosion intensity in space and time are a comprehensive reflection of changes in natural factors and human factors. The natural factors mainly include ones that affect erosion such as terrestrial surface substance composition, vegetation covering rates, topography, landforms, precipitations, and so on. Human factors mainly refer to human activities affecting erosion acceleration and soil conservation control degrees. On the basis of remote sensing investigation on soil erosion, the regularity in relation with the above factors affecting area distinctions of erosion intensity are analyzed.