黄土高原地区土壤干层综合研究

Comprehensive Research about the ried-layer of Soil in Loess Plateau

详细描述了土壤干层现象及其类型,分析了土壤干层的成因,即气候暖干化、植被类型选择不当、密度过大,人为破坏严重,研究了土壤干层的危害,最后提出了防治黄土高原地区土壤干层的具体措施:强化生态意识,加强管理;因地制宜选择植被种类和种植密度;充分利用降水资源．

The appearance of soil-dried layer in Loess plateau seriously influenced the ecological environment constructions of this place. This text described the phenomenon of soil-dried layers and its type, analyzed the cause of it. That is the climate changed dry and warmly, the vegetation type was choosed improperly, and the density of it is too big, people destroyed vegetation seriously, at the same time, it studied the danger of soil-dried layer. At last, it proposed the countermeasures concretely： Strengthen ecological consciousness and management ; choose the vegetation and plant density properly; fully utilize the rainfall resource.