| 北京什刹海生态修复试验工程 |
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| 引用本文： | 屠清瑛,章永泰,杨贤智.北京什刹海生态修复试验工程[J].湖泊科学,2004,16(1):62-68. |
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| 作者姓名： | 屠清瑛 章永泰 杨贤智 |
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| 作者单位： | 1. 中国科学院南京地理与湖泊研究所,南京,210008
2. 上海佛欣爱建河道治理有限公司,上海,200031 |
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| 基金项目： | 国家可持续发展实验区科技示范项目. |
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| 摘 要： | 什刹海是北京市一个小型浅水城市风景游览的富营养湖泊.生态恢复试验工程以物理除藻为前提,通过实施基底修复而后开展水体充氧等手段,达到恢复水生植被的根本目的.应用的修复技术有:(1)臭氧/超声波除藻;(2)基底修复;(3)水下曝气充氧及冬季冰下底部充氧;(4)上游区复合生物浮床;(5)水下光补偿技术;(6)高等水生植物栽植与优化配置;(7)水生植物调控与机械割草;(8)水质净化与保洁管理.工程实施近1年(2001年8月-2002年6月)后效果明显,总氮、总磷分别下降了4.74mg/L和0.45mg/L,去除率达到79%和91%,什刹海的水质也由Ⅴ类上升为Ⅳ类.
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| 关 键 词： | 什刹海 生态修复 生态工程 |
| 收稿时间： | 2003/10/4 0:00:00 |
| 修稿时间： | 2003年10月4日 |
Approaches to the Ecological Recovery Engineering in Lake Shishahai, Beijing |
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| TU Qingyin,ZHANG Yongtai and YANG Xianzhi.Approaches to the Ecological Recovery Engineering in Lake Shishahai, Beijing[J].Journal of Lake Science,2004,16(1):62-68. |
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| Authors: | TU Qingyin ZHANG Yongtai and YANG Xianzhi |
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| Institution: | TU Qingyin 1,ZHANG Yongtai 2 &YANG Xianzhi 2 |
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| Abstract: | Shishahai Lake is a scenic and sightseeing lake in central Beijing.Before the ecologic re-covery testing,it was under heavy eutrophication.Indexes of BOD 5, NH 3 -N,Permanganate Index and TP were over V-Class of Chinese Environmental Quality Standards For Surface Water with dominant alga of bellamya microcystis.Several technologies were used in the e-cological recovery for Lake Shishahai,i.e.,ozone/supersonic algae removal,aeration,floating bio-bed technology,lake bottom recovery,hydrophyte planting and recovering and biological adjustment and control.After more than ten months'testing of ecological recovery,the eco-logical environment has improved obviously.TN and TP content are1.26mg/L and0.046mg/L,which were reduced79%and91%separately for TN and TP.Meanwhile,the chloro-phyll.a content was decreased with notable deeper transparency in the lake.The general e-valuation of water quality is IV Class. |
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| Keywords: | Lake Shishahai ecological recovery engineering |
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