我国地壤侵蚀状况与主要影响因素分析

Study of the State of Soil Erosion in Our Country and Analysis of Its Major Elements

我国土壤侵蚀面积之大 ,已严重的影响和制约国民经济的发展和社会的安定。我们从土壤侵蚀与降雨 ,土壤侵蚀与坡长、坡度 ,土壤侵蚀与植被建设三个方面作了系统分析 ,研究土壤侵蚀的最为关键因子 ,并找出其对生态环境的危害性 ,提出最佳的综合防治对策 ,将土壤侵蚀的危害降低到最低程度。

The area of the eroded soil of our country has come to 4920 thousand square kilometers, which amounts to 51.2% of the total area of the country and has seriously influenced and restricted the development of the national economy and the steady of the society. The flood disaster in 1998 was the greatest punishment of nature caused by the soil erosion, which has aroused the attention of all walks of life. In order to absorb experiences and lessons form it, we, in this article, have made systematic analysis from three aspects and studied the key elements about soil erosion and found out its harm to the ecological environment and finally put forward some better comprehensive countermeasures in order to reduce its harm to the smallest degree.