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沟灌侵蚀不仅引起农田表土的重新分布,并且使大量的表土流入江湖之中.农田上部灌溉流量和侵蚀能量最大,所以侵
Furrow irrigation not only caused the redistribution of topsoil in the farmland, but also caused a large amount of topsoil to flow into the rivers and lakes. The upper part of farmland had the largest irrigation flow and erosion energy,