皇甫川流域土壤侵蚀退化及其防治

本文根据调查资料统计,对黄土高原东部有典型性、代表性的皇甫川流域的土壤侵蚀的严重退化,进行了全面论述。文中指出,由于严重的水土流失和风蚀沙化,350年后土壤资源将濒临枯竭。拯救和保护土壤资源刻不容缓。通过土壤资源的适宜性评价与土壤利用现状比较,指出土壤资源利用不合理是导致土壤侵蚀退化的根本原因。最后指出了以生态学观点为指导,防治土壤侵蚀退化为目的,建立自给和半自给型的农业,保护型的林业,商品性的牧业为总方针,进行高效生态农业的土壤改良、利用和保护的途径与措施,为黄土高原地区制定国土整治规划提供一定的科学依据。

Soil degenerated by erosion and its control in Huangpuchuan River Basin

The typical soil erosion and degenerating type and its serious consequences in Huangpuchuan basin is expounded all-sidedly in this paper by statistic data. It says that the soil resources will be exhausted after 50 years because of heavy soil and water loss and wind erosion and desertification. So, it is of great urgency to rescue and protect soil resources. Meanwhile, it shows that the reason of soil degenerated by erosion is the unreasonable use of land by comparing present situation of land utilization and its adaptability. At last, it gives the effective measures to utilize, protect, and improve soil under the policy to develop self-sufficient orsemi-self-sufficient agriculture, protective forestry, and commodity stock raising according to ecology idea. It provides regalar scientific basis to work out the plan of land reform.