气候变化领域集成服务门户(CCPortal): An impending water crisis in Canada's western prairie provinces

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DOI	10.1073/pnas.0601568103
	An impending water crisis in Canada's western prairie provinces
	Schindler D.W.; Donahue W.F.
发表日期	2006
ISSN	0027-8424
起始页码	7210
结束页码	7216
卷号	103 期号:19
英文摘要	Canada is usually considered to be a country with abundant freshwater, but in its western prairie provinces (WPP), an area 1/5 the size of Europe, freshwater is scarce. European settlement of the WPP did not begin until the late 19th and early 20th centuries. Fortuitously, the period since European settlement appears to have been the wettest century of the past two millennia. The frequent, long periods of drought that characterized earlier centuries of the past two millennia were largely absent in the 20th century. Here, we show that climate warming and human modifications to catchments have already significantly reduced the flows of major rivers of the WPP during the summer months, when human demand and in-stream flow needs are greatest. We predict that in the near future climate warming, via its effects on glaciers, snow-packs, and evaporation, will combine with cyclic drought and rapidly increasing human activity in the WPP to cause a crisis in water quantity and quality with far-reaching implications. © 2006 by The National Academy of Sciences of the USA.
英文关键词	Climate warming; Eutrophication; Freshwater supplies
语种	英语
scopus关键词	fresh water; snow; article; Canada; drought; Europe; eutrophication; evaporation; glacier; greenhouse effect; human activities; human impact (environment); prairie; priority journal; river; water quality; water supply; Air; Canada; Ecology; Fresh Water; Seasons; Time Factors; Water Supply; Weather
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158957
作者单位	Schindler, D.W., Department of Biological Sciences, University of Alberta, Edmonton, Alta. T6G 2E9, Canada; Donahue, W.F., Freshwater Research Ltd., Edmonton, Alta. T6C 0R6, Canada
推荐引用方式 GB/T 7714	Schindler D.W.,Donahue W.F.. An impending water crisis in Canada's western prairie provinces[J],2006,103(19).
APA	Schindler D.W.,&Donahue W.F..(2006).An impending water crisis in Canada's western prairie provinces.Proceedings of the National Academy of Sciences of the United States of America,103(19).
MLA	Schindler D.W.,et al."An impending water crisis in Canada's western prairie provinces".Proceedings of the National Academy of Sciences of the United States of America 103.19(2006).