| 二次降雨条件下紫色土壤中流的氮磷流失特征研究 |
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| 引用本文： | 王玉霞,龙天渝,卢齐齐.二次降雨条件下紫色土壤中流的氮磷流失特征研究[J].中国水土保持,2011(5):33-35. |
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| 作者姓名： | 王玉霞 龙天渝 卢齐齐 |
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| 作者单位： | 重庆大学,三峡库区生态环境教育部重点实验室,重庆,400045 |
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| 基金项目： | 国家水体污染与治理科技重大专项项目 |
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| 摘 要： | 地表径流及壤中流中N、P的流失是造成非点源污染的主要原因。以重庆地区紫色土为研究对象,通过人工模拟降雨试验,研究了地表径流和壤中流中N、P流失随地面坡度、降雨强度及土壤改良剂聚丙烯酰胺(PAM)施用量的不同而变化的特点,分析了不同土层深度壤中流的N、P流失特征,为防治非点源污染、增加土壤蓄水、提高土壤养分等提供了科学依据。
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| 关 键 词： | 二次降雨 紫色土 壤中流 聚丙烯酰胺 |
Characteristics of Nitrogen and Phosphorus Loss in Subsurface Flow of Purple Soil under Conditions of Two Games Rainfall |
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| WANG Yu-xia,LONG Tian-yu,LU Qi-qi.Characteristics of Nitrogen and Phosphorus Loss in Subsurface Flow of Purple Soil under Conditions of Two Games Rainfall[J].Soil and Water Conservation In China,2011(5):33-35. |
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| Authors: | WANG Yu-xia LONG Tian-yu LU Qi-qi |
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| Institution: | WANG Yu-xia,LONG Tian-yu,LU Qi-qi(Key Laboratory of Eco-Environment of the Three Gorges Reservoir Region of Ministry of Education,Chongqing University,Chongqing 400045,China) |
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| Abstract: | The loss of nitrogen(N) and phosphorus(P) of surface runoff and subsurface flow is the main reason for causing non-point source pollution.The paper studies the characteristics of variations of N and P loss of surface runoff and subsurface flow under conditions of two games along with the difference of slope,rainfall intensity and polyacrylamide(PAM) application for soil improvement and analyzes the characteristics of N and P loss of subsurface flow in different depth of soil through artificial simulated rai... |
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| Keywords: | second rainfall purple soil subsurface flow polyacrylamide |
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