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February 26, 2025
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Utilisation des instruments économiques pour réduire l’épuisement des eaux souterraines dans le contexte du changement climatique : cas de l’aquifère de Mahdia-Ksour Essef en Tunisie

Publicated to:Cahiers Agricultures. 34 7- - 2025-02-24 34(), DOI: 10.1051/cagri/2025003

Authors: Soula, R., Chebil, A., Majdoub, R., Kahil, T. & Albiac, J.

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Abstract

Sustainable management of aquifers in arid and semi-arid regions is crucial to ensure socio-environmental sustainability. Groundwater extraction regulation can be implemented through various instruments. Hydro-economic modeling methods offer significant insights which help to evaluate these instruments for effective groundwater regulation. Nonetheless, regulators can leverage the information generated by hydro-economic models to enhance their decision-making processes related to water allocation. This study evaluates the impact of water management instruments such as quotas, environmental taxes, and the quota-tax system on the sustainability of the Mahdia-Ksour Essef aquifer and the local economy, while also considering future climate projections, using hydro-economic modeling. By exploring various water management scenarios, the study offers strategic insights for enhancing resource allocation. The policies of quotas, adjusted according to natural recharge, as well as taxes and combined policies (quota-tax system) are examined and compared to the Business As Usual (BAU) scenario. The results show that policies based on quotas (only quotas and quota-taxes) allow for a faster replenishment of the aquifer and generate total revenues after taxes that are higher than those before taxes. For example, under the most pessimistic climate change scenario, a preservation quota for future generations could increase the actual aquifer level by 1.69 meters at the end of the simulation period. These policies could influence agricultural revenue by promoting more profitable and drought-resistant crops, such as olives and almonds. This study highlights the effectiveness of hydro-economic models as optimal approaches for evaluating groundwater management. Thus, it contributes to guiding policymakers toward strategic choices that promote sustainability and efficiency, particularly in the complex context of climate change and groundwater resource overexploitation.

Keywords

Cambio climáticoCuotas de aguaModelización hidrológicaSobreexplotaciónTúnez

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Cahiers Agricultures, and although the journal is classified in the quartile Q3 (Agencia WoS (JCR)), its regional focus and specialization in Agronomy, give it significant recognition in a specific niche of scientific knowledge at an international level.

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-08-15:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 2.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 2 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.5.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Additionally, the work has been submitted to a journal classified as Diamond in relation to this type of editorial policy.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/10532/7521