北方环境
北方環境
북방배경
INNER MONGOLIA ENVIRONMENTAL SCIENCES
2013年
11期
134-141
,共8页
岷江上游%河流健康状况%表征%评价方法%评价体系
岷江上遊%河流健康狀況%錶徵%評價方法%評價體繫
민강상유%하류건강상황%표정%평개방법%평개체계
the upper reaches of Minjiang River%river health%characterization%evaluation method%evaluation system
河流健康状况评价是河流管理和河流生态系统监控的基础。本文针对水电开发程度较高的岷江上游开展河流健康状态标识及评价研究。尝试从河流结构、生态环境功能、社会服务功能3个方面表征河流的健康状况，其中引入鱼类生物完整因子，结合岷江上游水生生态特点及国外研究现状拟定了12个指标对该因子进行表述；并采用多目标模糊评价模型，在确定岷江上游指标权重与指标标准特征值前提下，开展健康评价。评价结果表明：岷江上游由于电站的建设导致枯水期减水河段的河流动力大幅度下降；蜿蜒度以及水质状况良好；减水河段长度比及纵向连通性较差，岷江上游鱼类生物完整性属差的状态，社会环境功能指标一般，河流的综合健康状况处于较差状态，需采取一定措施对其进行生态修复以期恢复到相对健康的状态。
河流健康狀況評價是河流管理和河流生態繫統鑑控的基礎。本文針對水電開髮程度較高的岷江上遊開展河流健康狀態標識及評價研究。嘗試從河流結構、生態環境功能、社會服務功能3箇方麵錶徵河流的健康狀況，其中引入魚類生物完整因子，結閤岷江上遊水生生態特點及國外研究現狀擬定瞭12箇指標對該因子進行錶述；併採用多目標模糊評價模型，在確定岷江上遊指標權重與指標標準特徵值前提下，開展健康評價。評價結果錶明：岷江上遊由于電站的建設導緻枯水期減水河段的河流動力大幅度下降；蜿蜒度以及水質狀況良好；減水河段長度比及縱嚮連通性較差，岷江上遊魚類生物完整性屬差的狀態，社會環境功能指標一般，河流的綜閤健康狀況處于較差狀態，需採取一定措施對其進行生態脩複以期恢複到相對健康的狀態。
하류건강상황평개시하류관리화하류생태계통감공적기출。본문침대수전개발정도교고적민강상유개전하류건강상태표식급평개연구。상시종하류결구、생태배경공능、사회복무공능3개방면표정하류적건강상황，기중인입어류생물완정인자，결합민강상유수생생태특점급국외연구현상의정료12개지표대해인자진행표술；병채용다목표모호평개모형，재학정민강상유지표권중여지표표준특정치전제하，개전건강평개。평개결과표명：민강상유유우전참적건설도치고수기감수하단적하류동력대폭도하강；완연도이급수질상황량호；감수하단장도비급종향련통성교차，민강상유어류생물완정성속차적상태，사회배경공능지표일반，하류적종합건강상황처우교차상태，수채취일정조시대기진행생태수복이기회복도상대건강적상태。
The evaluation of river health is the foundation of environmental management and ecosystem of the river monitoring .The pa-per study on the identification and evaluation of river health status in the upper reaches of Minjiang River in hydropower development of high -er level.Try from the stream structure, ecological function, social service function 3 aspects of river health.The introduction of biological integrity factor includes 12 indicators , combined with ecological characteristics of the upper reaches of the Minjiang River water and the pres -ent situation of foreign research on the development .Using multi-objective fuzzy evaluation model to assess health status of the upper rea-ches of Minjiang River with determine the index standard eigenvalue premise and weight .The evaluation results show that:the upper reaches of Minjiang River power station construction due to lead to substantially dry season water reducing , river meandering down;and water quality in good condition;reducing reach length and vertical connectivity is poor , the upper reaches of Minjiang River fish biological integrity of the state, environmental function index of the social general .Comprehensive health status of rivers in the lower state , need to take certain meas-ures for ecological restoration to restore to the relatively healthy state .
