桃林口水库不同径流小区水土流失规律研究 |
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作者姓名: | 甄宝艳 张卫平 邓春芳 刘征 贾志军 |
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作者单位: | 1. 河北省水利技术试验推广中心,石家庄,050061 2. 桃林口水库管理局,河北秦皇岛,066400 |
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基金项目: | 河北省水利科学技术研究计划“桃林口水库水源涵养区生态修复技术模式及工程效益评价研究”(2008-24) |
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摘 要: | 通过对桃林口水库大暖泉径流小区产流次数、冲刷量、径流深、植被覆盖度等指标的监测及分析,得出结论:①随着植被盖度的增加,产流次数与径流深趋于减少;农业种植与裸地的产流次数与径流深在各径流小区中最大;坡耕地玉米种植小区的冲刷量最高,裸地坡面冲刷量次之,梯田种植桃树与水平阶种植桃树的小区冲刷量最小;②冲刷量(Y)与植被覆盖度(X)间符合指数函数关系。结合径流小区冲刷量及坡度的关系,建议该区16°以上的坡耕地应退耕还林,并在退还时考虑辅之以梯田、水平阶等工程措施。
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关 键 词: | 桃林口水库 径流小区 产流次数 冲刷量 径流深 植被覆盖度 退耕还林 |
Study of Water and Soil Erosion of Different Runoff Plots in Taolinkou Reservoir |
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Authors: | ZHEN Bao-yan ZHANG Wei-ping DENG Chun-fang LIU Zheng JIA ghi-jun |
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Affiliation: | 1.Hebei Extension and Experiment Center for Water Technology/a>;Shijiazhuang 050061/a>;China/a>;2.The Administration Bureau of Taolinkou Reservoir/a>;Qinhuangdao 066400/a>;China |
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Abstract: | By monitoring times of runoff producing,runoff erosion,runoff in depth,vegetation coverage in big warming spring runoff plot of Taolinkou reservoir,we have gotten:firstly,as vegetation average increases,times of runoff producing and runoff in depth tend to decrease; agriculture planting,times of runoff producing in bare area and depth in runoff are the maximum in all of the runoff plots; The runoff erosion in corn planting plot in sloping farmland is the highest,and the runoff erosion of bare slope face is ... |
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Keywords: | Taolinkou reservoir runoff plot times of runoff producing runoff erosion runoff in depth vegetation coverage return farmland to forest |
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