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我国陆地总面积约960万平方公里,在这片土地上,自古以来哺育了中华民族,对人类的发展,曾作出过贡献。但也和其他文明古国相似,水土流失严重,就1952年以来约略估计,流失面积达250万平方公里,占国土总面积的26%。在复杂富于变化的自然条件下,水土流失的特点突出表现在:举凡世界上存在的水土流失形式和类型,尽管在分布面积大小、程度和强度上有所不同,但在我国都可以找到它们的踪迹。“水土流失”和“水土保持”的科学涵义是:“水土流失是由
Our country has a total land area of about 9.6 million square kilometers. In this land, we have nurtured the Chinese nation since ancient times and made contributions to the development of mankind. However, similar to other ancient civilizations, water and soil loss is serious. Since 1952, it has been estimated that it has lost 2.5 million square kilometers of land, accounting for 26% of the total land area. Under complex and changing natural conditions, the characteristics of soil and water loss are highlighted in the following aspects: The types and types of soil and water loss that exist in the world can be found in our country, though they vary in size, extent and intensity of distribution The trail. The scientific meaning of “soil and water loss” and “soil and water conservation” is: "Soil erosion is caused by it