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通过亚洲湿热带地区水土保持网络的活动,我们在中国东南沿海有代表性的福建省南部对水土保持耕作系统进行了研究。研究表明在人口密度高地区的坡地上进行集约化水土保持耕作措施是可行的,能达到高投入高产出土地永续利用目的。梯田是一项必须的基础措施,因为它的经济与水土保持效益均高;在多雨季收获由于土壤扰动引起疏松容易造成表土流失,因而在严重的水土流失区不同作物轮作套种增加覆盖能防止严重的水土流失;长中期果树与短期作物结合既增加前期收入又能增加土壤肥力;等高草带成本低且简单易杆也经常被采用,果树与绿肥及牧草相结合是有前景的水土保持措施;以上这些水土保持耕作措施对不同农民和农地有不同适宜性,需要综合地、因地制宜地加以利用。
Through the activities of the Soil and Water Conservation Network in the Wetlands of Asia, we conducted a study on the soil and water conservation farming system in the southern part of Fujian Province, which is representative of the southeast coast of China. Research shows that it is feasible to intensify soil and water conservation measures on sloping land in areas with high population density and achieve the purpose of sustainable utilization of land with high input and high output. Terraced fields are a necessary basic measure because of their high economy and soil and water conservation benefits. Topsoil losses due to loosening of soil during rainy seasons can easily lead to surface soil loss. Increasing the coverage of rotation of different crop rotation in severe soil erosion areas can prevent serious Of the soil and water loss; long-medium-term combination of fruit trees and short-term crops both increase income and increase soil fertility; high grass belt with low cost and easy to use easy rod is also often used in combination with green manure and forage grass is promising soil and water conservation measures These measures of soil and water conservation and cultivation have different suitability for different peasants and agricultural land and need to be comprehensively utilized according to local conditions.