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目前世界各国为保护土地资源,充分发挥土地资源的生产效能,在水土保持方面作了很多工作,收到良好的效果。如耕作制度的改革,土壤结构改良剂的使用与推广及增加植被复盖率等三个方面。兹分迷于下:
At present, all countries in the world have done a great deal of work in soil and water conservation in order to protect land resources and give full play to the productive efficiency of land resources and have received good results. Such as farming system reform, the use and promotion of soil structure improver and increase the coverage of vegetation cover three aspects. It is sub-sub-fans in the next: