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Mapping the world's free-flowing rivers

机译:映射世界的自由流动的河流

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摘要

Free-flowing rivers (FFRs) support diverse, complex and dynamic ecosystems globally, providing important societal and economic services. Infrastructure development threatens the ecosystem processes, biodiversity and services that these rivers support. Here we assess the connectivity status of 12 million kilometres of rivers globally and identify those that remain free-flowing in their entire length. Only 37 per cent of rivers longer than 1,000 kilometres remain free-flowing over their entire length and 23 per cent flow uninterrupted to the ocean. Very long FFRs are largely restricted to remote regions of the Arctic and of the Amazon and Congo basins. In densely populated areas only few very long rivers remain free-flowing, such as the Irrawaddy and Salween. Dams and reservoirs and their up- and downstream propagation of fragmentation and flow regulation are the leading contributors to the loss of river connectivity. By applying a new method to quantify riverine connectivity and map FFRs, we provide a foundation for concerted global and national strategies to maintain or restore them.
机译:自由流动的河流(FFR)全球支持各种,复杂和动态的生态系统,提供重要的社会和经济服务。基础设施发展威胁这些河流支持的生态系统流程,生物多样性和服务。在这里,我们评估全球1200万公里的河流的连接状态,并确定那些在整个长度中保持自由流动的河流。只有37%的河流超过1000公里的河流仍然自由流动,整个长度,23%的流量不间断到海洋。很长的FFR主要限于北极和亚马逊和刚果盆地的偏远地区。在密集的地区,只有很少有很长的河流仍然是自由流动的,如伊利拉啶和沙特州。水坝和水库及其碎片和流量监管的上下繁殖和下游传播是河流丧失的主要贡献者。通过应用新方法来量化河流连接和地图FFR,我们为维护或恢复它们的协调一致的全球和国家战略提供基础。

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  • 来源
    《Nature》 |2019年第7755期|215-221|共7页
  • 作者单位

    McGill Univ Dept Geog Montreal PQ Canada;

    McGill Univ Dept Geog Montreal PQ Canada;

    WWF US Washington DC USA;

    WWF NL Zeist Netherlands;

    WWF UK Woking Surrey England;

    WWF Mediterranean Rome Italy;

    WWF India New Delhi India;

    Univ Basel Environm Geosci Basel Switzerland|European Commiss Joint Res Ctr Directorate Sustainable Resources Ispra Italy;

    WWF China Beijing Peoples R China;

    WWF Canada Toronto ON Canada;

    McGill Univ Dept Geog Montreal PQ Canada;

    WWF Zambia Lusaka Zambia|Rewilding Europe Nijmegen Netherlands;

    WWF Greater Mekong Programme Ho Chi Minh City Vietnam;

    Nat Conservancy TNC Chicago IL USA;

    Univ Nevada Dept Biol Reno NV 89557 USA|Univ Nevada Global Water Ctr Reno NV 89557 USA;

    WWF Malaysia Sarawak Malaysia;

    IHE Delft Dept Water Sci & Engn Delft Netherlands|Delft Univ Technol Dept Water Management Delft Netherlands;

    WWF Germany Berlin Germany|HTWG Konstanz Univ Appl Sci Constance Germany;

    Kings Coll London Dept Geog London England;

    Umea Univ Dept Ecol & Environm Sci Umea Sweden|Swedish Univ Agr Sci Dept Wildlife Fish & Environm Studies Umea Sweden;

    Univ Washington Sch Aquat & Fishery Sci Seattle WA 98195 USA;

    WWF US Washington DC USA;

    Nature Conservancy Hollis NH USA|Harvard Univ Museum Comparat Zool Cambridge MA 02138 USA;

    Univ Wisconsin UW Ctr Limnol Madison WI USA;

    Conservat Int Arlington VA USA|Michigan Technol Univ Environm Engn Houghton MI 49931 USA;

    WWF Mexico Mexico City DF Mexico;

    WWF Int Gland Switzerland;

    Stanford Univ Nat Capital Project Dept Biol Stanford CA 94305 USA|Stanford Univ Woods Inst Environm Stanford CA 94305 USA;

    WWF Canada Toronto ON Canada;

    McGill Univ Dept Geog Montreal PQ Canada;

    Leibniz Inst Freshwater Ecol & Inland Fisheries I Berlin Germany|Free Univ Berlin Inst Biol Berlin Germany|FWF Austrian Sci Fund Vienna Austria;

    WWF Brazil Brasilia DF Brazil;

    Kings Coll London Dept Geog London England;

    Eberhard Karls Univ Tubingen Ctr Appl Geosci Tubingen Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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