DOI: 10.5194/hess-20-3129-2016
Scopus记录号: 2-s2.0-84980569261
论文题名: Sustainability of water uses in managed hydrosystems: Human- and climate-induced changes for the mid-21st century
作者: Fabre J ; , Ruelland D ; , Dezetter A ; , Grouillet B
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2016
卷: 20, 期: 8 起始页码: 3129
结束页码: 3147
语种: 英语
Scopus关键词: Aquatic ecosystems
; Reservoir management
; Reservoirs (water)
; Stream flow
; Sustainable development
; Uncertainty analysis
; Water management
; Water resources
; Water supply
; Climate change scenarios
; Climate projection
; Environmental requirement
; Hydrological modeling
; Management scenarios
; Strategic resource
; Streamflow regulations
; Water availability and demand
; Climate change
; aquatic ecosystem
; climate change
; environmental indicator
; human activity
; reservoir
; resource allocation
; river basin
; streamflow
; sustainability
; time series
; twenty first century
; uncertainty analysis
; water availability
; water demand
; water management
; water use
; Ebro Basin
; France
; Herault
; Languedoc-Roussillon
; Spain
英文摘要: This paper assesses the sustainability of planned water uses in mesoscale river basins under multiple climate change scenarios, and contributes to determining the possible causes of unsustainability. We propose an assessment grounded in real-world water management issues, with water management scenarios built in collaboration with local water agencies. Furthermore, we present an analysis through indicators that relate to management goals and present the implications of climate uncertainty for our results, furthering the significance of our study for water management. A modeling framework integrating hydro-climatic and human dynamics and accounting for interactions between resource and demand was applied in two basins of different scales and with contrasting water uses: the Herault (2500km2, France) and the Ebro (85000km2, Spain) basins. Natural streamflow was evaluated using a conceptual hydrological model. A demand-driven reservoir management model was designed to account for streamflow regulations from the main dams. Human water demand was estimated from time series of demographic, socioeconomic and climatic data. Environmental flows were accounted for by defining streamflow thresholds under which withdrawals were strictly limited. Finally indicators comparing water availability to demand at strategic resource and demand nodes were computed. This framework was applied under different combinations of climatic and water use scenarios for the mid-21st to differentiate the impacts of climate- and human-induced changes on streamflow and water balance. Results showed that objective monthly environmental flows would be guaranteed in current climate conditions in both basins, yet in several areas this could imply limiting human water uses more than once every 5 years. The impact of the tested climate projections on both water availability and demand could question the water allocations and environmental requirements currently planned for the coming decades. Water shortages for human use could become more frequent and intense, and the pressure on water resources and aquatic ecosystems could intensify. The causes of unsustainability vary across sub-basins and scenarios, and in most areas results are highly dependent on the climate change scenario. © Author(s) 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78772
Appears in Collections: 气候变化事实与影响
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作者单位: CNRS, HydroSciences Laboratory, Place Eugene Bataillon, Montpellier, France; IRD, HydroSciences Laboratory, Place Eugene Bataillon, Montpellier, France
Recommended Citation:
Fabre J,, Ruelland D,, Dezetter A,et al. Sustainability of water uses in managed hydrosystems: Human- and climate-induced changes for the mid-21st century[J]. Hydrology and Earth System Sciences,2016-01-01,20(8)