Fragmentation and flow regulation of the world's large river systems

被引：2542

作者：

Nilsson, C ^{[1
]}

Reidy, CA

Dynesius, M

Revenga, C

机构：

[1] Umea Univ, Dept Ecol & Environm Sci, Landscape Ecol Grp, SE-90187 Umea, Sweden

[2] Nature Conservancy, Global Prior Grp, Arlington, VA 22203 USA

来源：

SCIENCE | 2005年 / 308卷 / 5720期

关键词：

D O I：

10.1126/science.1107887

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A global overview of dam-based impacts on large river systems shows that over half (172 out of 292) are affected by dams, including the eight most biogeographicalty diverse. Dam-impacted catchments experience higher irrigation pressure and about 25 times more economic activity per unit of water than do unaffected catchments. In view of projected changes in climate and water resource use, these findings can be used to identify ecological risks associated with further impacts on large river systems.

引用

页码：405 / 408

页数：4

共 37 条

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