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水平梯田是水土保持治坡工程的重要组成部分,也是山区改造坡耕地的主要形式。多年实践证明,坡地修成梯田后,变水土肥“三跑”为“三保”,提高了土地生产力,尤其在干旱山区,梯田对蓄水保墒、抗旱丰产具有明显效果。平凉县南台T生产队,在1979年连续大旱252天的情况下,梯田仍获得平均亩产小麦435斤的好收成,比周围坡地增产三倍多。我省从六十年代开始大规模地修水平梯田,在农村实行联产承包责任制后,又有了新的发展。截止1983年,全省水土流失区累计完成水平梯田936万亩。实行联产承包责任制后的1981～1983年,平均每年超额完成计划任务的23％。据调查了解,各地在组织梯田建设中有以下几点经验。 一、认识明确,领导重视,是抓好梯田建设的关键。平凉地委、行署在实行联产承包责任制后,
Horizontal terraces are an important part of slopes and slopes for soil and water conservation and also the main form of slope farmland rebuilding. After many years of practice, it has been proved that after the terraced fields are built into slopes, the “three runs” of water and soil fertilizers become “three guarantees”, which improves the productivity of the land. Especially in the arid mountainous areas, the terraces have significant effects on water storage, soil moisture preservation and drought-resistant yield. Pingliang Nantai T production team, in the continuous drought in 1979 252 days, the terraces still get an average yield of 435 pounds of wheat a good harvest, more than tripling the surrounding slopes. Since the 1960s, our province started to repair the terraced fields on a large scale. After the implementation of the system of contract responsibility for removals by the people in rural areas, we have made new progress. As of 1983, the province’s soil and water loss area completed a total of 936 acres of terraces. From 1981 to 1983 after the implementation of the system of household contract responsibility, 23% of the planned tasks were overrun each year on average. According to the survey, all the places in the construction of terraced fields have the following experience. First, a clear understanding of the leadership attention is to grasp the key to the construction of terraces. Pingliang prefectural and administrative offices in the implementation of the system of contract responsibility of joint generation,