| 土地利用变化对流域面源污染的累积生态效应影响 |
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| 引用本文： | 侯伟,李法云,马溪平,范志平,孙博.土地利用变化对流域面源污染的累积生态效应影响[J].干旱区资源与环境,2009(7). |
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| 作者姓名： | 侯伟 李法云 马溪平 范志平 孙博 |
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| 作者单位： | 辽宁大学环境学院;中国科学院沈阳应用生态研究所; |
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| 基金项目： | 国家科技部“十一五”课题(2006BAD03A0203);;辽宁省教育厅(2008255);;辽宁大学青年基金;;辽宁省高校污染控制与环境修复重点实验室项目资助 |
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| 摘 要： | 从土地利用景观生态结构与面源污染的关系入手,分析大伙房水库流域土地利用景观结构及其变化过程,特别是农业景观结构变化对面源污染发生发展的累积生态效应影响。研究内容主要有三个方面:随着农业景观面积的增加,相应的化肥、农药施用量加大,造成面源污染加重;农业景观大多分布在河流的两侧,高差较大,这样极其容易引起水土流失,把土壤及其土壤中的有机物带入水库,加深面源污染的程度;农业内部结构的调整,如种植业向畜禽养殖业的转变对流域面源污染影响加大。
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| 关 键 词： | 大伙房水库 农业景观 面源污染 |
The influences of land use change on the non-point source pollution in the Dahuofang Reservoir Catchment |
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| HOU Wei,LI Fayun,MA Xiping,FAN Zhiping,SUN Bo.The influences of land use change on the non-point source pollution in the Dahuofang Reservoir Catchment[J].Journal of Arid Land Resources and Environment,2009(7). |
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| Authors: | HOU Wei LI Fayun MA Xiping FAN Zhiping SUN Bo |
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| Institution: | 1.School of Environmental Science;Liaoning University;Shenyang 110036;P.R.China;2.Institute of Applied Ecology;Chinese Academy of Sciences;Shenyang 110016;P.R.China |
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| Abstract: | From the point of relationship between ecological process of landscape and non-point source pollution,the influence of landscape structure and change process on the development of non-point source pollution,especially the agricultural landscape was analyzed.Non-point source pollution becomes seriously along with the increasing area of agricultural landscape.Agricultural landscape distributes both side of rivers and where the relative heights are big,so it is easy to lead to soil and water loss.This will agg... |
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| Keywords: | Dahuofang Reservoir agricultural landscape non-point source pollution |
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