DOI: 10.1073/pnas.0601568103
论文题名: An impending water crisis in Canada's western prairie provinces
作者: Schindler D.W. ; Donahue W.F.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2006
卷: 103, 期: 19 起始页码: 7210
结束页码: 7216
语种: 英语
英文关键词: Climate warming
; Eutrophication
; Freshwater supplies
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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162479
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Schindler D.W.,Donahue W.F.. An impending water crisis in Canada's western prairie provinces[J]. Proceedings of the National Academy of Sciences of the United States of America,2006-01-01,103(19)