Research on Purification Effect of Jian Lake Zizania latifolia Wetland Lakefront Zone in Northwest of Yunnan Plateau on Nitrogen and Phosphorus of Agricultural Non-point Source  

滇西北高原剑湖茭草湿地湖滨带对农业面源N·P污染净化效果研究(英文)

作　　者：李卫东 刘云根[2,3] 田昆 梁启斌[2] 刘惠芳[2] 

机构地区：[1]云南省文山州环境科学研究所,云南文山663000 [2]西南林业大学环境科学与工程系,云南昆明650224 [3]国家高原湿地研究中心,云南昆明650224

出　　处：《Agricultural Science & Technology》2010年第7期109-112,150,共5页农业科学与技术（英文版）

基　　金：Supported by National Key Basic Research Development Plan(973) Early Special Item(2008CB41720);Yunnan Application Basic Research Apparent Project (2009ZC083M);Yunnan Technological Plan Project (2008CA006);Apparent Fund Project of South West Forestry University (200804M)~~

摘　　要：As the main external pollution source of lake,nitrogen and phosphorus from agricultural non-point source make a great contribution to the lake eutrophication pollution.Wetland lakefront zone which plays a key role in externally agricultural non-point source pollution is considered as the biggest barrier for controlling external pollution.In this research,the Jian lake plateau Zizania latifolia wetland lakefront zone was selected for agricultural non-point source pollutions control with the systematic field research,and the lakefront zone was approved to have an effective purification effect on nitrogen and phosphorus from Jinlong River; the theoretical mechanism of lakefront zone removing nutrient was also investigated.Z.latifolia wetland lakefront zone could remove nitrogen and phosphorus from Jinlong River and the removal ratio can reach 55.8-62.52% and 59.47-69.81% respectively.So,we can indicate that the Jian Lake plateau Z.latifolia wetland lakefront zone had a good effect on controlling agricultural non-point source pollution and protecting the environment.通过在滇西北开展高原剑湖茭草湿地湖滨带对农业面源污染控制研究,得出湖滨带对来源于农业面源污染纳污河流—金龙河水体中N、P污染净化效果,并结合湖滨带对农田废水中N、P污染净化机理进行分析,结果表明位于滇西北高原的剑湖茭草湿地湖滨带对金龙河水体中的N、P污染净化效果较好,尤其在农业生产行为活动较频繁的夏秋季节,茭草湿地湖滨带对金龙河水体中N素和P素的污染净化效果分别可达55.8%～62.52%和59.47%～69.81%。剑湖茭草湿地湖滨带对剑湖流域农业面源污染的控制起到较好效果,并最终为保护剑湖水环境污染起到重要控制作用。

关 键 词：Plateau wetland in northwest of Yunnan Zizania latifolia lakefront zone Agricultural non-point source pollutions Purification effect 

分 类 号：X52[环境科学与工程—环境工程]