南水北调中线工程对汉江襄阳段环境影响评价

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1、南水北调中线工程对汉江襄阳段环境影响评价摘要：汉江作为长江最大的支流，对汉江流域的生态环境调节起着举足轻重的作用。南水北调中线调水工程的实施，削减了丹江口水库下泄水量，从而减少了汉江中游水流量，这必将对汉江流域襄阳段的生态环境产生很大的影响。襄阳市是湖北省副中心城市，汉江中游最大的城市,鄂西北区域经济文化中心，因而探究中线调水工程对该区域的生态环境影响具有重要意义。通过结合汉江流域襄阳段的的自然因素和人类活动因素，分析中线调水工程对该区域生态环境的影响因子，提出16个评价指标，确定层次分析法为评价方法，最终计算出评价结果为中线调水工程对汉江流域襄阳段的生态环

2、境影响程度-16.43%—-19.09%,即生态环境处于明显的负面影响状态。关键词：南水北调中线工程；汉江流域；襄阳；环境影响评价中图分类号：X8文献标志码：A文章编号：1672-1683(2015)001-0130-06EcologicalenvironmentimpactassessmentofXiangyangsectionofHanjiangRiverbasinwhichcausedbythemiddlerouteofSouth-to-NorthWaterTransferProjectNIEFang,LIUSong(HubeiUniversityof

3、ArtsandScience，Xiangyang441053,China)Abstract：AsthelargesttributaryoftheChangjiangriver,HanjiangriverplaysanimportantroletoregulatetheecologicalenvironmentoftheHanjiangriverbasin.however，theimplementationofthemiddlerouteofwatertransferprojectleadedreducementoftheflowwaterfromtheDan

4、jiangkoureservoir,thusresultedinthedecreasmentofwaterflowofthemiddlereachesofHanjiangriver,anditwillinevitablycausesaseriesofinflueneeontheecologicalenvironmentofXiangyangsectionofHanjiangriverbasin.XiangyangisthedeputycentercityofHubeiprovinee,thebiggestcityinthemiddlereachesofHan

5、jiangriver,andalsoistheregionaleconomicandculturalcenterofnorthwestofHubeiprovince.Soithasthegreatsignificaneetoexploretheecologicalenvironmentinfluenceofthissectionwhichcausedbythemiddlerouteofsouth-to-northwatertransferprojectthispaper,bycombiningnaturalandhumanactivitiesfactorso

6、fXiangyangsectionoftheHanjiangrivervalley,weanalysistheregionalecologicalenvironmentimpactfactorsofthemiddlelineofwaterdiversionproject,putforwardlsixteenevaluationindexes,determinetheAnalyticHierarchyProcess(AHP)asevaluatemethod,andfianlycalculatetheevaluationresult.Theclusionisth

7、attheinflueneedegreeisminus16.43%〜19.09%,theecologicalenvironmentisinastateofobviousnegativeimpactment.Keywords：South-to-NorthWaterTransferMiddleRouteProject；Hanjiangriverbasin；Xiangyang；environmentalimpactevaluation南水北调中线调水工程是人为干预水资源的时空分布，一系列的工程建设和水资源的减少，必将对汉江流域水资源、地质地貌、生物、社会生活、经济

8、发展产生影响，特别是对生态环境的影响较为严重。生态环