Effects of land use on soil erosion and nitrogen loss in the hilly area of the Loess Plateau, China
Effects of land use on soil erosion and nitrogen loss in the hilly area of the Loess Plateau, China
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DOI：
10.1002/ldr.572
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发表时间：
2004-01-01
影响因子：
4.7
通讯作者：
Davidson, DA
中科院分区：
文献类型：
--
作者：
Fu, BJ;Meng, QH;Davidson, DA
研究了黄土高原不同土地利用方式和不同坡度对坡面径流、土壤流失和氮素流失的影响。比较了农田、荒地和沙棘+白杨、幼龄沙棘、幼龄沙棘、幼龄油松4种林分处理的土地利用类型。结果表明，7月是径流、土壤流失和农田氮素流失的关键时期。耕地是最易受影响的土地利用方式。沙棘+白杨、幼龄沙棘和成熟沙棘对径流、土壤流失和氮素流失有一定的限制作用。坡度超过15度的农田，由于侵蚀率高，氮素流失严重，应放弃。版权所有（C）2003约翰威利父子有限公司。
This study examines the effects of land use and slope angle on runoff, soil loss and nitrogen loss from hillslopes of the Loess Plateau in China. Farmland, wasteland and four forest treatments (sea buckthorn + poplar, immature sea buckthorn, mature sea buckthorn, and immature Chinese pine) were the types of land use that were compared. The results showed that July was the critical period for runoff, soil loss and nitrogen loss from farmland. Farmland was the most susceptible land use. Sea buckthorn + poplar, immature sea buckthorn, and mature sea buckthorn limited the runoff, soil loss and nitrogen loss. Farmland on slopes over 15 degrees should be abandoned because of the high erosion rate and nitrogen loss. Copyright (C) 2003 John Wiley Sons, Ltd.