雨水收集和拟议水坝的最佳地点：沙特阿拉伯西部基于地理空间和分析层次过程的可行性研究

IF 5 2区地球科学 Q1 WATER RESOURCES

Journal of Hydrology-Regional Studies Pub Date : 2025-09-19 DOI:10.1016/j.ejrh.2025.102782

Eltaher M.M. Shams , Rashad Sawires , Sahar N.E. Tawfik , Hanaa R. Youssef , Tadahiro Kishida

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引用次数: 0

摘要

研究区域本研究的重点是沙特阿拉伯的一个干旱地区，该地区正在经历快速的城市发展和日益严重的水资源短缺。该地区包括麦加、吉达、库莱斯和拉贝等主要城市，由于天然淡水资源有限，这些城市对可持续水资源管理的需求日益迫切。正在进行的城市化和大规模经济发展进一步加剧了这一挑战，特别是在麦加、吉达、阿卜杜拉国王经济城和延布工业城周围，这些都给该地区脆弱的水系统带来了额外的压力。本研究的目的是利用地理信息系统（GIS）、层次分析法（AHP）和多标准决策分析（MCDA）相结合的综合方法，评估和绘制雨水收集（RWH）地点的适宜性。该分析以粮食及农业组织（粮农组织）的准则为指导，结合了水文、地质和基础设施标准。该研究还评估了现有水利基础设施的性能和贡献，并确定了未来大坝建设的最佳地点。结果表明，大约6000 km²（约26% %的研究区域）非常适合RWH，估计地表径流潜力约为7.3亿m³ 。现有的大坝——khlay、Rabiigh和fatima——在区域供水方面发挥着重要作用。四个主要地点——戈兰、图勒、卡哈和法蒂玛——被确定为新建大坝的最佳地点，并计算了估计的储水量。这些发现表明，在沙特阿拉伯西部等干旱地区，RWH综合规划具有增强可再生水资源、支持长期水安全以及为政策和基础设施发展提供信息的潜力。

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Optimal sites for rainwater harvesting and proposed dams: A geospatial and analytic hierarchy process-based feasibility study in Western Saudi Arabia

Study region

This study focuses on an arid zone of Saudi Arabia that is experiencing rapid urban growth and escalating water scarcity. The region encompasses major cities such as Mecca, Jeddah, Khulays, and Rabigh, where the demand for sustainable water resource management is becoming increasingly urgent due to the limited availability of natural freshwater sources. The challenge is further intensified by ongoing urbanization and large-scale economic developments, particularly around Mecca, Jeddah, King Abdullah Economic City, and Yanbu Industrial City, which place additional pressure on the region’s fragile water systems.

Study focus

The objective of this research is to assess and map the suitability of rainwater harvesting (RWH) sites using an integrated approach that combines Geographic Information System (GIS), the Analytic Hierarchy Process (AHP), and Multi-Criteria Decision Analysis (MCDA). The analysis incorporates hydrological, geological, and infrastructural criteria, guided by Food and Agriculture Organization (FAO) guidelines. The study also evaluates the performance and contribution of existing RWH infrastructure and identifies optimal locations for future dam construction.

New hydrological insights for the region

The results indicate that approximately 6000 km² (∼26 % of the study area) is highly suitable for RWH, with an estimated surface runoff potential of about 730 million m³ . Existing dams—Khlays, Rabiigh, and Fatima—play a significant role in regional water supply. Four primary locations—Ghoran, Thule, Qahah, and Fatima—were identified as optimal for new dam sites, with estimated water storage capacities calculated. These findings demonstrate the potential of integrated RWH planning to enhance renewable water resources, support long-term water security, and inform policy and infrastructure development in arid regions like Western Saudi Arabia.

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来源期刊

Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.70

自引率

8.50%

发文量

284

审稿时长

60 days

期刊介绍： Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.