Proposal for a managed aquifer recharge feasibility index for southern Portugal using multi-criteria decision analysis

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL Groundwater for Sustainable Development Pub Date : 2024-07-11 DOI:10.1016/j.gsd.2024.101280

Tiago N. Martins , Teresa E. Leitão , Manuel M. Oliveira , Constantinos F. Panagiotou , Catalin Stefan , Anis Chkirbene , Maria Manuela Portela

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Abstract

Water scarcity in the Mediterranean region requires the adoption of new and optimized water resources management tools that allow a progressive climate change adaptation, being one of the main drivers for the employment of alternative water storage measures such as Managed Aquifer Recharge (MAR). To promote the implementation of these measures, this study evaluates the application of a MAR feasibility index mapping to southern Portugal, employing Multi-Criteria Decision Analysis (MCDA). A participatory approach – developed within the AGREEMAR project – aims for the characterization of the intrinsic site suitability, water availability and demand, where the stakeholder inputs are embedded in the weighting computation process.

The results obtained demonstrate prevalent moderate MAR feasibility across the entire region (78% of the area) with an increased percentage of the area corresponding to high MAR feasibility (22%) strongly related to highly suitable geological features. A comparative analysis with the Analytical Hierarchical Process (AHP) showed minor high MAR feasibility areas (7%), and feasibility class transitions between the directly above or below classes.

A sensitivity analysis, conducted based on a one-at-a-time (OAT) variation of the criteria weights, assessed the impact of the weighting methods on feasibility class changes. For the AGREEMAR method, changes in the weight of 10 of the 28 considered criteria resulted in negligible changes when compared to the original feasibility map, while for AHP 3 out of 28 produced minor changes. The remaining criteria showed important modifications in the feasibility maps, which underlined AGREEMAR method weights provided higher stability in the results.

The study provides information about a MAR site selection process procedures, allowing replication. The dissemination of the results is expected to raise awareness of MAR among stakeholders and support scientifically-based water resources management decision-making.

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利用多标准决策分析法提出葡萄牙南部有管理含水层补给可行性指数的建议

地中海地区水资源短缺，需要采用新的、优化的水资源管理工具，以逐步适应气候变化，这也是采用含水层管理补给（MAR）等替代性蓄水措施的主要驱动力之一。为促进这些措施的实施，本研究采用多标准决策分析（MCDA）方法，对葡萄牙南部的蓄水管理可行性指数绘图应用情况进行了评估。在 AGREEMAR 项目中开发的一种参与式方法旨在确定场地的内在适宜性、水的可用性和需求，利益相关者的意见被纳入加权计算过程。与层次分析法（AHP）进行的比较分析表明，高 MAR 可行性区域较小（7%），可行性等级在直接高于或低于等级之间转换。就 AGREEMAR 方法而言，与原始可行性图相比，28 个标准中 10 个标准权重的变化可忽略不计，而就 AHP 方法而言，28 个标准中 3 个标准权重的变化较小。其余标准在可行性图中都有重要变化，这表明 AGREEMAR 方法的权重提供了更高的结果稳定性。研究结果的传播有望提高利益相关者对 MAR 的认识，支持以科学为基础的水资源管理决策。

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来源期刊

Groundwater for Sustainable Development Social Sciences-Geography, Planning and Development

CiteScore

11.50

自引率

10.20%

发文量

152

期刊介绍： Groundwater for Sustainable Development is directed to different stakeholders and professionals, including government and non-governmental organizations, international funding agencies, universities, public water institutions, public health and other public/private sector professionals, and other relevant institutions. It is aimed at professionals, academics and students in the fields of disciplines such as: groundwater and its connection to surface hydrology and environment, soil sciences, engineering, ecology, microbiology, atmospheric sciences, analytical chemistry, hydro-engineering, water technology, environmental ethics, economics, public health, policy, as well as social sciences, legal disciplines, or any other area connected with water issues. The objectives of this journal are to facilitate: • The improvement of effective and sustainable management of water resources across the globe. • The improvement of human access to groundwater resources in adequate quantity and good quality. • The meeting of the increasing demand for drinking and irrigation water needed for food security to contribute to a social and economically sound human development. • The creation of a global inter- and multidisciplinary platform and forum to improve our understanding of groundwater resources and to advocate their effective and sustainable management and protection against contamination. • Interdisciplinary information exchange and to stimulate scientific research in the fields of groundwater related sciences and social and health sciences required to achieve the United Nations Millennium Development Goals for sustainable development.