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近百年来,全球受蚀土壤已达30多亿亩,占世界耕地总面积的27％,土壤侵蚀已成为一个世界性问题。联合国粮农组织将它列为世界土地退化的首要问题。 在我国热带、亚热带地区,由于土壤侵蚀导致的土壤退化,也日益成为国土整治中的严重问题,研究土壤退化的发展过程及其原因,对红壤资源的开发、利用、保护和改造等,均有重要的理论和实践意义。
In the past century, the global erosion of soil has reached more than 30 billion mu, accounting for 27% of the world’s total arable land. Soil erosion has become a worldwide problem. The UN Food and Agriculture Organization lists it as the foremost issue of land degradation in the world. In China’s tropical and subtropical regions, soil degradation due to soil erosion is also increasingly becoming a serious problem in land remediation. The development of soil degradation and its causes are studied. For the development, utilization, protection and reformation of red soil resources, there are Important theoretical and practical significance.