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本文较系统地总结了黄土高原不同类型区机械修梯田合理规划设计的试验研究成果。耕作区及地块规划布设,要基本沿等高线,以减少修筑工作量;地块长度,缓坡区宜大于300米,陡坡区尽量不小于200米,以提高机耕工时有效利用率。梯田设计的关键是合理确定田宽和地坎侧坡。根据便于机耕、利于灌溉、提高土地利用率和节省机修工时等研究结果,提出了不同坡度的经济合理田宽和地坎安全侧坡。对梯田断面要素计算、土方平衡及其合理调运规划等研究成果,也做了简要介绍。
This article systematically summarizes the different types of mechanical loess plateau in the Loess Plateau reasonable planning and design of experimental research results. Tillage areas and plot planning and layout, to be along the contour to reduce the workload; land length, gentle slope area should be greater than 300 meters, steep slope area as much as possible not less than 200 meters, in order to improve the effective utilization of tractors. The key to the terraced design is to determine the width of the field and the slope of the ridge easily. According to the research results such as easy tillage, irrigation, land use efficiency and mechanized man-hours, the economical and reasonable slope width and ridge safety slope are proposed. On the terraced section element calculation, earthwork balance and its reasonable transfer planning and other research results, also made a brief introduction.