【摘要】 晋西北地区是我国黄土高原及北方农牧交错带的重要组成部分．土地荒漠化动力因素主要包括水动力和内动力．风、水动力具有随季节周期性交替和空间上相互交错渗透的特点，风、水两种动力有时互为条件，有时相互制约，它们共同决定了晋西北全区侵蚀过程的垂向分带和地貌形态．更多还原

【Abstract】 Northwestern Shanxi province is an important part of the Loess plateauand the mixed agropastoral region of northern China. The motive forces of land deserti-fivation are wind and water and have two features, that is, wind and water change peri-odly with the laternation of seasons and interlance with each other spatially. Wind andwater are conditions and oppsitions each other, there have formed vertical erosion beltsand the special landforms of the erosion proess in the Northwestern Shanxi province.更多还原