基于典型案例的流域规划环评管理成效评估

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Abstract To further improve effectiveness of the EIA of WDPs, it is imperative to develop an evaluation of performance of this means to reveal potential shortfalls or problems. Based on an overview of nation-wide practice of the EIA of WDPs, 25 cases involving the three major river basins of the Yangtze River, the Yellow River and the Pearl River were selected from the EIAs reviewed by the state-level environmental authority from 2014 to 2019. The performance and shortfalls were studied by 16 indicators stemmed from four aspects of environmental quality compliance, ecological security safeguarding, ecological service maintenance and green development progress. The results acquired by ranking evaluation and the BP neural network built-up through MATLAB showed that, a total of more than 2 billion m³ of water resource for eco-environmental uses had been secured by optimizing water distribution, about 20 thousand tons of major water pollutants had been reduced, and 223 water conservancy projects had been adjusted by downscaling so that 411 km natural segments of rivers were reserved. Moreover, in order to preserve the wild fauna and flora species and their habitats, 122 hydropower development projects were rejected, and 43 environmentally sensitive sites were bypassed. Although the EIA of WDPs had accomplished obvious effectiveness in preserving watershed ecosystem, it played a relatively weak role in promoting watershed green development. It was raised to further improve management of the EIAs of WDP by enhancing EIA technical quality and output implementation, and the role of promoting watershed ecological conservation and high-quality development.

Key words： watershed development plans environmental impact assessment performance evaluation case study green development

Received: 25 November 2020

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X32

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	Articles by authors
	HUANG Rui
	LI Wei
	HAN Yu

Cite this article:

HUANG Rui,LI Wei,HAN Yu. A performance evaluation based on typical cases of environmental impact assessment of watershed development plans[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(7): 3409-3417.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I7/3409

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