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坡耕地修水平梯田是保持水土的一项重要的农田基本建设。建国以来,我省黄土高原兴修水平梯田593万亩,为改变农业生产条件和保持水土发挥了很大作用。但是,大量兴修水平梯田,往往受地形、劳力、经费、肥料的限制,粮食产量提高很慢,治理速度不快。为了寻求治坡途径,合理利用坡耕地,加快治理步伐,发挥综合治理效益,延安地区水保所从1981年开始,在延安市上砭沟流域开展了隔坡梯田的试验研究和示范,为坡耕地治理探索出一条新路,并已在延安地区大面积地推广。
Slope cultivated land repair terraced fields is to maintain water and soil is an important farmland infrastructure. Since the founding of the People’s Republic, a total of 5,930,000 mu of terraced fields have been built on the loess plateau in our province, playing a significant role in changing agricultural production conditions and maintaining soil and water. However, a large number of overhaul of terraced fields are often limited by topography, labor, funding, and fertilizer. The increase in grain output is very slow and the management speed is not fast. In order to seek ways of slope control, rational use of slope farmland, speeding up the pace of governance, and giving full play to the benefits of comprehensive management, the Institute of Soil and Water Conservation in Yan’an started experiment and demonstration of slope isolation terraces in Shanggou Valley of Yan’an City since 1981, Cultivated land management has explored a new road and has been widely promoted in Yan’an.