Juliette Rougerie , Rémy Buzier , Valentin Robin , François Bordas , Anne Da Silva , Julie Leblanc , Delphine Devillers , Patrice Fondanèche , Karine Cleriès , Emmanuelle Ducloux , Marc Rateau , Lauriane Boulp , Gilles Guibaud
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引用次数: 0
Abstract
Despite meeting legal standards, drinking water quality in sparsely populated areas with scattered groundwater resources in medium mountain ranges may be compromised. This results from inaccurate assessments of human activities, such as forest exploitation, on groundwater intake watersheds or insufficient monitoring frequency to understand their full impact on groundwater quality. This study involved a 3-year monthly monitoring of 18 groundwater intakes for drinking water supply, situated in areas with crystalline bedrocks, a temperate climate, and surrounded by forest exploitation. The quality of groundwater collected from alterites up to 15 m deep was evaluated over time. The correlation between the groundwater physico-chemical parameters (measured through 382 samples between March 2017 and December 2020) and the groundwater intakes’ environment - such as the geological and pedological context, land use, climate, and depth of drains - was investigated to understand their potential impact on groundwater quality. This study revealed a significant degradation in shallow groundwater quality (up to 5 m deep) concerning dissolved aluminum (concentration up to 2 mg L−1), which results from land use and is climate dependent. Indeed, dissolved aluminum concentrations in groundwater can be correlated with the pH of the upper soil horizons, which are mostly impacted by forestry practices, as well as with rainfall events. The results of this study highlight that by integrating efforts to preserve the soil and change forestry practices (e.g., selective logging, avoiding rapid rotations), more efficient protection of groundwater quality can be achieved in the context of acidic soils present on crystalline bedrock.
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.