Global water resources:: Vulnerability from climate change and population growth
Global water resources:: Vulnerability from climate change and population growth
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DOI：
10.1126/science.289.5477.284
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发表时间：
2000-07-14
期刊：
影响因子：
56.9
通讯作者：
Lammers, RB
中科院分区：
文献类型：
--
作者：
Vörösmarty, CJ;Green, P;Lammers, RB
由于供水和用水的地理情况复杂而迅速变化，因此难以评估未来淡水资源是否充足。结合气候模型输出、水资源收支和沿着数字化河流网络的社会经济信息的数值实验表明，（i）世界上很大一部分人口目前正经历着水资源压力，（ii）在确定2025年全球水系统的状态时，水资源需求的增长远远超过温室效应。考虑人类对全球供水的直接影响仍然是一个表述不清但可能是更大的全球变化问题的重要方面。
The future adequacy of freshwater resources is difficult to assess, owing to a complex and rapidly changing geography of water supply and use. Numerical experiments combining climate model outputs, water budgets, and socioeconomic information along digitized river networks demonstrate that (i) a large proportion of the world's population is currently experiencing water stress and (ii) rising water demands greatly outweigh greenhouse warming in defining the state of global water systems to 2025. Consideration of direct human impacts on global water supply remains a poorly articulated but potentially important facet of the larger global change question.