Conservation-Targeted Hydrologic-Economic Models for Water Demand Management

IF 6 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Y. Xiao, L. Fang, K. Hipel
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引用次数: 13

Abstract

Two basin-wide hydrologic-economic optimization models are presented to estimate how much water can be conserved while maintaining at least the same level of economic output. Water consumption is interpreted as either water diverted to consumptive users or water consumed by all users. Two different formulations for representing the two interpretations of water consumption are examined. The characteristics of different users, such as the consumption ratio and productivity, are considered. The models are applied to the South Saskatchewan River Basin (SSRB) in southern Alberta, Canada, where water scarcity is a severe issue. It is found that: a substantial amount of water can be conserved without sacrificing economic output; irrigation is the largest contributor while municipal and industrial (MI) users make a small difference in terms of water conservation; MI users make major economic contribution in order to retain the same level of system-wide aggregated benefits, and thereby overall water productivity can be considerably improved; MI users’ reactions are diversified depending on the specified conservation targets; and overall water conservation may be limited if MI users act independently. The implications of the results can be used to facilitate a better understanding of present water usage and guide policy makers into making informed decision for water demand management.
以保护为目标的水资源需求管理水文经济模型
提出了两个流域范围的水文经济优化模型,以估计在保持至少相同经济产出水平的情况下可以节约多少水。水的消耗被解释为转移给消费用户的水或所有用户消耗的水。两种不同的公式表示水消耗的两种解释进行了审查。考虑了不同用户的特点,如消费比率和生产率。这些模型应用于加拿大阿尔伯塔省南部的南萨斯喀彻温河流域(SSRB),那里缺水是一个严重的问题。研究发现:在不牺牲经济产出的情况下,可以节约大量的水;灌溉是最大的贡献者,而市政和工业用户在节水方面略有不同;水系统用户作出重大经济贡献,以保持全系统总效益的相同水平,从而可以大大提高总的水生产力;MI用户的反应因指定的保护目标而异;如果MI用户独立行动,整体节水可能会受到限制。研究结果的含义可用于促进对当前用水情况的更好理解,并指导决策者对水需求管理作出明智的决策。
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来源期刊
Journal of Environmental Informatics
Journal of Environmental Informatics ENVIRONMENTAL SCIENCES-
CiteScore
12.40
自引率
2.90%
发文量
7
审稿时长
24 months
期刊介绍: Journal of Environmental Informatics (JEI) is an international, peer-reviewed, and interdisciplinary publication designed to foster research innovation and discovery on basic science and information technology for addressing various environmental problems. The journal aims to motivate and enhance the integration of science and technology to help develop sustainable solutions that are consensus-oriented, risk-informed, scientifically-based and cost-effective. JEI serves researchers, educators and practitioners who are interested in theoretical and/or applied aspects of environmental science, regardless of disciplinary boundaries. The topics addressed by the journal include: - Planning of energy, environmental and ecological management systems - Simulation, optimization and Environmental decision support - Environmental geomatics - GIS, RS and other spatial information technologies - Informatics for environmental chemistry and biochemistry - Environmental applications of functional materials - Environmental phenomena at atomic, molecular and macromolecular scales - Modeling of chemical, biological and environmental processes - Modeling of biotechnological systems for enhanced pollution mitigation - Computer graphics and visualization for environmental decision support - Artificial intelligence and expert systems for environmental applications - Environmental statistics and risk analysis - Climate modeling, downscaling, impact assessment, and adaptation planning - Other areas of environmental systems science and information technology.
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