The Ebro River Basin
The Ebro River Basin
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埃布罗河流域
DOI：
10.1007/698_2010_86
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Bovolo C
中科院分区：
文献类型：
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作者：
Bovolo C
欧洲水框架指令鼓励流域尺度的河流管理，要求了解自然环境与当地水文、生态和气候之间的相互依赖关系。西班牙埃布罗河流域，包括其支流加列戈河，目前和未来的气候，已经在欧盟的AquaTerra（AT）项目中进行了广泛的研究，沿着水文和环境污染物的行为与气候变化。本章概述了目前的研究进行的埃布罗和加列戈，并提供了一个总结和审查最近和新的AT研究审查气候，水资源和环境污染物。AT气候研究表明，埃布罗在未来将变得更加炎热和干燥，特别是在夏季。例如，区域气候模型（RCMs）预测，到2080年代，夏季日平均降水量将减少50.5%（Bürger et al. Environ Pollut 148：842-854，2007）。已使用来自区域气候模型集合的未来气候情景为埃布罗和加列戈流域的水文模型提供输入数据，以模拟气候变化对流域的影响。这些结果表明，气候变化将减少该地区的水资源供应，特别是在夏季灌溉需求最高的月份。此外，先进技术污染物研究表明，滴滴涕等持久性有机污染物在工业场地附近浓度很高，重金属、农药和营养物污染也很普遍。在低水流量时期，流域内水质差的问题可能会加剧，因为在高流量时期，污染物将由于缺乏稀释而更加集中。AT研究表明，这会导致生物可利用的溴化阻燃剂在鱼类体内的生物累积，可能对健康造成严重影响。不断变化的气候模式可能影响污染物的降解、周转、吸附和迁移行为，其影响尚不清楚。气候变化对污染物的影响尚未得到与水文评估同样严格的定量评估，在污染物监测和建模界进一步整合气候影响评估以改进未来预测方面仍有相当大的潜力。这些研究对埃布罗未来的流域综合管理战略具有重要意义。
AbstractThe European Water Framework Directive encourages the management of rivers at the basin scale requiring an understanding of the interdependencies between the physical environment and the local hydrology, ecology and climate. The current and future climate of the Spanish Ebro river basin, including its tributary, the Gállego, has been studied extensively within the EU AquaTerra (AT) project along with the hydrology and behaviour of environmental pollutants with respect to climate change. This chapter provides an overview of current research carried out for the Ebro and the Gállego and provides a summary and review of the recent and new AT studies examining climate, water resources and environmental pollutants. AT climate studies suggest that the Ebro will become significantly hotter and drier in the future, especially in summer. For example, regional climate models (RCMs) project a decrease in daily mean precipitation of up to 50.5% in the summer by the 2080s (Bürger et al. Environ Pollut 148:842–854, 2007). Future climate scenarios from an ensemble of RCMs have been used to provide input data to hydrological models of the Ebro and Gállego catchments to simulate the impacts of climate change on the basins. These results suggest that changes in climate will reduce water availability in the area, especially during the summer months when irrigation demands are highest. In addition, AT pollutant studies have revealed that persistent organic pollutants such as DDT are found in high concentrations near industrial sites, and heavy metal, pesticide and nutrient pollution are widespread. Problems of poor water quality in the basin may be exacerbated in periods of low water flow as pollutants will be more concentrated due to a lack of dilution with respect to high flow periods. AT studies have shown that this leads to a bioaccumulation of bio-available brominated flame retardants in fish, with potentially serious health effects. Changing climate patterns may influence degradation, turnover, sorption and transport behaviour of pollutant contamination with unknown effects. The effect of climate change on pollutants has not yet been quantitatively assessed with the same rigour as applied to hydrological assessments, and there remains considerable potential for further integration of climate impact assessment within the pollutant monitoring and modelling communities to improve future projections. These studies have important implications for future integrated basin management strategies in the Ebro.Graphical Abstract