DOI: 10.2166/wcc.2014.019
论文题名: Assessing water demands and coverage sensitivity to climate change in the urban and rural sectors in central Chile
作者: Meza F.J. ; Vicuña S. ; Jelinek M. ; Bustos E. ; Bonelli S.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2014
卷: 5, 期: 2 起始页码: 192
结束页码: 203
语种: 英语
英文关键词: Climate change
; Hydrological models
; Multiple water users
; Water rights
英文摘要: Snow dominated basins in the subtropics are susceptible to climate change, since evaporation and streamflows are affected, impacting key water sectors and increasing the risk of water shortages. This paper shows an integrated assessment of the impacts of climate change on the major water users in the Maipo Basin of Chile, allowing a direct comparison between competing sectors, describing their sensitivity to future climate changes instead of focusing on individual scenarios, and assessing the effect of likely responses, such as pumping, that impact groundwater levels. We developed a statistical downscaling mechanism to correct biases in global circulation model projections and ran a hydrological model to determine the impacts of climate change on the ability of the system to meet water demands. Mean coverage and minimum coverage of urban and agricultural sectors are sensitive to climate change, particularly to larger changes in precipitation. The urban sector is less sensitive because of higher reliability standards and holds a greater fraction of water-use rights in comparison to actual withdrawals. In addition, groundwater pumping represents an additional source of water to meet population demands. However, this favorable condition could no longer be present if climate change also affects aquifer recharge dynamics. © IWA Publishing 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67715
Appears in Collections: 气候减缓与适应
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作者单位: Centro Interdisciplinario de Cambio Global UC, Pontificia Universidad Católica de Chile, Santiago, Chile; Departamento de Ecosistemas y Medio Ambiente, Pontificia Universidad Católica de Chile, Santiago, Chile
Recommended Citation:
Meza F.J.,Vicuña S.,Jelinek M.,et al. Assessing water demands and coverage sensitivity to climate change in the urban and rural sectors in central Chile[J]. Journal of Water and Climate Change,2014-01-01,5(2)