资源描述:
《浅水湖泊生态系统恢复的理论与实践思》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、].LαkeSα(湖泊科学),2005,17(1):9-16ISSN1003-5427;E-mail:jlakes@niglas.ac.cnCopyright2005byJournal0/LαkeSciences浅水湖泊生态系统恢复的理论与实践思考*秦伯强,高光,胡维平,吴庆龙,胡春华,刘正文,谷孝鸿,未广伟,陈非洲(中国科学院南京地理与湖泊研究所,南京210008)摘要:随着我国湖泊生态环境越来越严峻,湖泊生态恢复也逐渐被人们所重视.实际上,湖泊生态恢复应该是一项系统工程,是通过一定程度地减缓或改善环境压力,结合某种或多种水生生物的种养措施,
2、逐步使得生态系统向良性的或者是被改变前的状态发展目前,湖泊生态恢复不是被单纯地理解为种草、养鱼等,就是被解释为生物群落的人为搭配或镶嵌.由于这种认识上的偏差,导致湖泊治理中有关生态修复的实践长期以来鲜有成功的实例最后,以太湖为例,给出了湖泊局部水体生态修复达致净化水质的技术思路通过改善环境来恢复水生植物,通过水生植物恢复来引导生态系统向草型湖泊转变,通过水生系统恢复达到改善水质的目的这种思路能否成功用于指导湖泊水生植物与生态系统恢复,还有待于进一步实践的检验.关键词:富营养化,湖泊生态系统,生态修复;净化水质ReflectionsontheTh
3、eoryandPracticeofShallowLakeEcosystemRestoration。inBoqiang,GAOGuang,HUWeiping,WUQinglong,HUChunhua,LIUZhengwen,GUXiaohong,ZHUGuan•gwei&CHENFeizhou(NαnjingInstill归ofGeogrα,:phyαndLimnology,ChineseAcademyofScie配时,Nαnjing210008,P.R.Chinα)Abstract:Aquaticecosystemrestorationisaw
4、ide-usedtermatpresent,andithasgraduallyaroused由eattentionofthepublicandgovernmentduetoseriousenvironmentalproblemoflakeinChina.Infact,asasystematicwork,ecosystemrestorationmakestheecosystemtowardsthegoodstateorprestinestatus.Itcomestruethroughthedecreasingorameliorationofenv
5、ironmentalpresscom•biningwithsingleormultiintroducedmeasuresofplantsandanimals.Atpresent,lakeecosystemrestorationisusuallyconsideredassimpleplantinggrassandcultivatingfishetc.orexplainedastheman-madere-arrangementorincrustationofbiocommunity.Thesebiasincognitionresultinlesss
6、uccessfulexamplesduringthelongtimeoftheecosystemrestorationpractices.HereweputforwardanalternativetechnologicalwaytopurifythelakewaterinpartareaofI.akeTaihuthroughecosystemrestoration,includingthreemutual-connectedphases,viz,improvingthelakecondition_restoratingaquaticmacrop
7、hyte_ecosystemtransformatingfromalgae-typedtograss-typedlake_improvingwaterquality.WhetherthisideadirectingtherestorationofaquaticmacrophyteandlakeecosystemissuccessfulwillbetestedbyfuturepracticeKeywords:Eutrophication;lakeecosystem;ecologicalrestoration;waterpurification2我
8、国是一个多湖泊的国家,全国湖泊共有2759个,总面积达91019km,占国土面积的0.959毛[IJ其中约二分之一为淡水湖泊,主要分布在东部沿海与长江