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水电工程生态效应评价研究(侯锐)

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水电工程生态效应评价研究

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EY$~Gn;C:]a0【作者】侯锐 【导师】刘恒; 钟华平水利论文$ejB[uX
【作者基本信息】南京水利科学研究院,水文学及水资源,2006年,硕士

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【中文摘要】 水电工程生态效应评价研究是在水电工程生态效应分析的基础上,针对生态效应的内涵与特点,通过建立评价指标体系和评价模型,评价水电工程的生态效应现状。 水电工程的生态效应是最近几年提出来的新概念。在总结前人已有成果的基础上,探讨了水电工程生态效应的内涵与特点,并深入分析了生态效应的影响因素。 水电工程的生态效应评价指标体系是在“压力—状态—响应”概念模型的基础上扩展而成,把水电工程的生态效应分为压力、状态、效应三个子系统,涵盖了社会、经济、生态环境三大要素,包括了24个核心指标,35个扩展指标,可根据不同评价项目选择适当的评价指标。 论文评价采用层次分析法与神经网络法两种评价模型与方法。层次分析法中采用指标分解的办法减少人为因素的影响;BP神经网络法则是客观定权法,但在实际运用中尚存在一定的问题,因此,对BP网络模型结构进行合理的设计,适当选择各种参数,以解决在实际应用中的问题。 论文选择有代表性与现实意义的澜沧江漫湾水电站,运用生态效应评价指标体系和评价方法进行了典型案例分析,得出了与实际相符合的基本结论,验证了指标体系与评价方法的实用性与可靠性。水利论文*v,AY0iWrylE

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【英文摘要】 Based on the analysis of the hydropower ecological effect, according to the meaning and characteristic, the research includes establishing assessment indicator system and assessment model and eliciting the actual state of affairs ecological effect.The concept of ecological effect was advanced in the past years. We discuss the meaning and the characteristic, as well as the impact factors.The assessment indicator system of hydropower ecological effect is formed from the developed "press -state- response" concept model, including three subsystems: press, state, response. It embodies societal, economic, eco-environmental three parameters indicators, which has 24 essential indicators and 35 expanded indicators. We can choose the proper indicators according to the different assessment project.The assessment of the hydropower ecological effect adopts two methods: the Analytic Hierarchy Process Method and the Back-Propagation Network Method. AHP method can reduce the factitious factor by disag...更多gregated indicators. BPNN Method confirms the weight objectively, but there are several problems in its application, so we discuss some measures in order to solve the problems.The indicators system and the assessment model were applied in hydropower ecological effect of the representative Manwan Hydropower in Lancang River. The outcome showed a reasonable relation to the real situation, and validated the practicability and reliability of the indicators and the assessment model.  还原

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【中文关键词】 水电工程; 生态效应; 评价指标体系; 层次分析法; BP神经网络; 漫湾电站
;JQ~YW6X Mg-L0【英文关键词】 hydropower; ecological effect; assessment indicators system; Analytic Hierarchy Process; Back-Propagation Network; Manwan hydropower水利论文B9JIy g[:rZM
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TAG: 工程 评价 水电 侯锐 生态效应
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