| 反坡水平阶对坡耕地径流和泥沙的调控作用 |
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| 引用本文： | 王萍,王克勤,李太兴,李云蛟.反坡水平阶对坡耕地径流和泥沙的调控作用[J].应用生态学报,2011,22(5):1261-1267. |
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| 作者姓名： | 王萍 王克勤 李太兴 李云蛟 |
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| 作者单位： | 1.西南林业大学环境科学与工程系, 昆明 650224；2玉溪市水利局, 云南玉溪 653100；3澄江县水利局, 云南澄江 653102 |
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| 基金项目： | 国家自然科学基金，云南省自然科学基金，云南省科技计划项目 |
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| 摘 要： | 基于天然降雨径流小区，动态监测了澄江抚仙湖一级支流尖山河小流域坡耕地降雨-径流过程及水土流失量，研究了反坡水平阶对云南红壤坡耕地水土流失的调控作用.结果表明：反坡水平阶对研究区地表径流调控率在49.5%～87.7%，产沙调控率在56.7%～96.1%，平均可削减地表径流65.3%、减少泥沙流失80.7%，产流产沙调控作用显著，且产沙调控作用更明显；原状坡面和反坡水平阶处理中各参数的变异系数均依次为：泥沙流失量>径流量>产径流降雨量.与原状坡面相比，反坡水平阶处理下径流量、泥沙量的相对偏离程度较小，说明反坡水平阶对研究区坡耕地水土流失调控作用显著.
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| 关 键 词： | 反坡水平阶 坡耕地 径流 产沙 |
Regulation effects of reverse-slope level terrace on the runoff and sediment yield in sloping farmland |
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| WANG Ping,WANG Ke-qin,LI Tai-xing,LI Yun-jiao.Regulation effects of reverse-slope level terrace on the runoff and sediment yield in sloping farmland[J].Chinese Journal of Applied Ecology,2011,22(5):1261-1267. |
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| Authors: | WANG Ping WANG Ke-qin LI Tai-xing LI Yun-jiao |
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| Institution: | 1.Faculty of Environment Science and Engineering, Southwest Forestry University, Kunming 650224, China|2Yuxi Hydrological Bureau, Yuxi 653100, Yunnan, China|3Chengjiang Hydrological Bureau, Chengjiang 653102, Yunnan, China |
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| Abstract: | A dynamic monitoring on the rainfall-runoff process and the surface runoff and sediment yield in a sloping farmland was conducted at a natural rainfall runoff plot in the watershed of Jianshan River,the first tributary of Fuxian Lake,Chengjiang,aimed to study the regulation effects of reverse-slope level terrace on the runoff and sediment yield in red soil sloping farmlands of Yunnan.The regulation rates of runoff and sediment yield by the reverse-slope level terrace were 49.5%-87.7% and 56.7%-96.1%,average... |
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| Keywords: | reverse-slope level terrace sloping farmland runoff sediment yield |
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