Strategies for water salinity management in alluvial aquifer in a multilevel crop planning

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Groundwater for Sustainable Development Pub Date : 2025-02-01 DOI:10.1016/j.gsd.2024.101392

Tayron Juliano Souza , Vera Lúcia Antunes de Lima , Carlos de Oliveira Galvão , Nildo da Silva Dias , Bárbara Barbosa Tsuyuguchi

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Abstract

This article analyses the behaviour of groundwater salinity and its suitability for irrigation purposes and proposes multilevel crop planning to increase agricultural benefits based on water salinity management strategies. The study area is a 12-km-long portion of an alluvial aquifer, where the irrigated perimeter of Sumé is located, in the municipality of Sumé, in the State of Paraíba, Brazil. Three wells were selected, located in the middle portion and at the ends of the aquifer. Based on the physical-chemical data collected, the classification of groundwater for agricultural use was carried out. Then, a multilevel planning model based on water salinity management is proposed, considering the geographic scale of the aquifer, different decision-making levels (lot and of irrigated perimeter), in addition to the involvement of different actors, including organizations and small farmers, at different decision levels. The results indicated that the waters in the initial portion of the aquifer have the highest levels of salinity and that the waters in the final reach have better quality, possibly due to the shorter and longer distances from the sources of contamination, respectively. The possibility of increasing the availability of water in the aquifer and the crop yield was indicated, in addition to other benefits related to the qualification of farmers and the commercialization of products, among others. In this sense, multilevel planning is suggested as a tool that can generate benefits for farmers beyond crop yields, including social and economic aspects.

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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.