摘要
四川省的土壤侵蚀是造成土地退化的主要原因,全省水土流失面积20.0万km^2,以水力侵蚀为主.土地退化的主要类型有土壤退化、土地石质化、土地沙质化和土地沙石化,全省沙质荒漠化面积达95.14万hm^2.毁林垦殖、滥伐森林、工矿生产污染是造成土壤侵蚀、土地退化加剧的主要原因.
Soil erosion is the main reason leading to land degeneration in Sichuan Province. The total soil loss area in the province is 200 thousand km2 with water erosion as the main status. The main types of land degeneration include soil retirement, land petrification, land desertification, land petrification and desertification, the deserted land area reached 951. 4 thousand hm2. Planting by deforestation, denuding forest, pollution from industrial production are main reasons aggravating soil erosion and land degeneration.
出处
《中国水土保持》
1998年第3期6-8,共3页
Soil and Water Conservation in China
关键词
土壤侵蚀
土地退化
水力侵蚀
环境污染
四川省
soil erosion land degeneration water erosion environmental pollution Sichuan Province
