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A global boom in hydropower dam construction

机译：全球水电大坝建设的繁荣

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摘要

Human population growth, economic development, climate change, and the need to close the electricity access gap have stimulated the search for new sources of renewable energy. In response to this need, major new initiatives in hydropower development are now under way. At least 3,700 major dams, each with a capacity of more than 1 MW, are either planned or under construction, primarily in countries with emerging economies. These dams are predicted to increase the present global hydroelectricity capacity by 73 % to about 1,700 GW. Even such a dramatic expansion in hydropower capacity will be insufficient to compensate for the increasing electricity demand. Furthermore, it will only partially close the electricity gap, may not substantially reduce greenhouse rngas emission (carbon dioxide and methane), and may not erase interdependencies and social conflicts. At the same time, it is certain to reduce the number of our planet's remaining free-flowing large rivers by about 21 %. Clearly, there is an urgent need to evaluate and to mitigate the social, economic, and ecological ramifications of the current boom in global dam construction.
机译：人口增长，经济发展，气候变化以及缩小电力供应差距的需求刺激了对新可再生能源的寻找。为了满足这种需求，水电开发方面的重大新举措正在实施中。计划中或正在建设中的至少3,700座大坝，每座的容量都超过1兆瓦，主要在新兴经济体国家中。预计这些水坝将使目前的全球水电容量增加73％，达到约1,700 GW。即使如此巨大的水电容量扩展也不足以弥补不断增长的电力需求。此外，它只会部分缩小电力缺口，可能不会大幅减少温室气体的排放（二氧化碳和甲烷），也可能不会消除相互依存和社会冲突。同时，可以肯定的是，地球上剩余的自由流动的大河数量减少了约21％。显然，迫切需要评估并减轻当前全球大坝建设热潮的社会，经济和生态影响。

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  • 来源
    《Aquatic Sciences》 |2015年第1期|161-170|共10页
  • 作者

    Christiane Zarfl; Alexander E. Lumsdon; Juergen Berlekamp; Laura Tydecks; Klement Tockner;

  • 作者单位

    Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Mueggelseedamm 310, 12587 Berlin, Germany,Center for Applied Geosciences, Eberhard Karls Universitaet Tuebingen, Hoelderlinstr. 12, 72074 Tuebingen, Germany;

    Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Mueggelseedamm 310, 12587 Berlin, Germany,Department of Biology, Chemistry and Pharmacy, Freie Universitaet Berlin, Altensteinstrasse 6, 14195 Berlin, Germany;

    Institute of Environmental Systems Research, University of Osnabrueck, Barbarastrasse 12, 49076 Osnabrueck, Germany;

    Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Mueggelseedamm 310, 12587 Berlin, Germany;

    Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Mueggelseedamm 310, 12587 Berlin, Germany,Department of Biology, Chemistry and Pharmacy, Freie Universitaet Berlin, Altensteinstrasse 6, 14195 Berlin, Germany;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biodiversity; Energy; River management; Sustainability; Climate change;

    机译：生物多样性;能源;河流管理;可持续发展;气候变化;

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