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The cost of noncooperation in international river basins

机译:国际流域不合作的代价

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摘要

In recent years there has been a renewed interest for water supply enhancement strategies in order to deal with the exploding demand for water in some regions, particularly in Asia and Africa. Within such strategies, reservoirs, especially multipurpose ones, are expected to play a key role in enhancing water security. This renewed impetus for the traditional supply-side approach to water management may indeed contribute to socioeconomic development and poverty reduction if the planning process considers the lessons learned from the past, which led to the recommendations by the World Commission on Dams and other relevant policy initiatives. More specifically, the issues dealing with benefit sharing within an efficient and equitable utilization of water resources are key elements toward the successful development of those river basins. Hence, there is a need for improved coordination and cooperation among water users, sectors, and riparian countries. However, few studies have explicitly tried to quantify, in monetary terms, the economic costs of noncooperation, which we believe to be important information for water managers and policy makers, especially at a time when major developments are planned. In this paper we propose a methodology to assess the economic costs of noncooperation when managing large-scale water resources systems involving multiple reservoirs, and where the dominant uses are hydropower generation and irrigated agriculture. An analysis of the Zambezi River basin, one of the largest river basins in Africa that is likely to see major developments in the coming decades, is carried out. This valuation exercise reveals that the yearly average cost of noncooperation would reach 350 million US$/a, which is 10% of the annual benefits derived from the system.
机译:近年来,人们对加强水供应战略有了新的兴趣,以应对某些地区,特别是亚洲和非洲的水需求激增。在这种策略中,水库,特别是多用途水库,有望在加强水安全方面发挥关键作用。如果规划过程考虑到过去的经验教训,那么对传统的供应方水资源管理方法的这种新的推动力的确可能有助于社会经济发展和减贫,这导致了世界水坝委员会的建议和其他相关政策举措。更具体地说,有效和公平利用水资源的利益共享问题是这些流域成功发展的关键要素。因此,需要改善用水者,部门和河岸国家之间的协调与合作。但是,很少有研究明确地试图用金钱来量化不合作的经济成本,我们认为这对水管理者和决策者是重要的信息,尤其是在计划了重大发展的时候。在本文中,我们提出一种方法来评估在管理涉及多个水库的大规模水资源系统时的不合作经济成本,其中主要用途是水力发电和灌溉农业。对非洲最大的流域之一赞比西河流域进行了分析,该流域可能在未来几十年内出现重大发展。这项评估工作表明,每年不合作的平均成本将达到3.5亿美元/年,占该系统每年收益的10%。

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  • 来源
    《Water resources research》 |2012年第1期|p.W01503.1-W01503.12|共12页
  • 作者

    A. Tilmant; W. Kinzelbach;

  • 作者单位

    Institute of Technology, HIL G 37.3,CH-8093 Zurich, Switzerland;

    Universite Laval, 1065 Av de la Medecine, Quebec, (QC),G1V0A6, Canada;

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  • 正文语种 eng
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