水坝对河流生态系统生态环境影响分级分析
首发时间:2014-11-12
摘要:"水坝与生态"是人与自然和谐相处中的一个重要课题,水坝对生态环境的影响近些年来受到人们高度关注。将水坝对河流生态系统的生态环境影响因素划分为非生物要素和生物要素两大方面,并根据影响程度划分为三个等级;进而分析了修建水坝对第一、二级非生物要素的影响和对第二、三级生物要素的影响;最后,提出应从整个河流生态系统的角度去研究水坝对生态环境所造成的影响,同时,应考虑梯级水坝的累计效应等。
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Grading-analyses of ecological environment impact on the dam to river ecosystem
Abstract:Dams and ecology is an important problem in the contacting between human being and nature, the effects of dams on ecology environment was paid more attention recently. in this paper, ecology environment factors affected on dams were divided into two sections: abiotic factor and biotic factor, and the degree of effects was divided into three grades; furthermore, it was analyzed that the influence of the first, second grade abiotic factor and the second, third grade biotic factor. It was put forward that research on ecological environment effects caused by dams should be carried on from the point of view of the whole ecological system of a river, simultaneously, considering accumulated effects of cascade dams.
Keywords: dams river ecosystem effects on ecological environment
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No.4616742101432314****
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