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二次降雨条件下紫色土壤中流的氮磷流失特征研究
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, 0(5): 33-35
作者姓名:王玉霞  龙天渝  卢齐齐
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
基金项目:国家水体污染与治理科技重大专项项目
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。

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
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, 0(5): 33-35
Authors:WANG Yu-xia  LONG Tian-yu  LU Qi-qi
Affiliation: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)
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...
Keywords:second rainfall  purple soil  subsurface flow  polyacrylamide  
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