Isotopic and Chemical Tracers for the Sustainable Management of Water Resources in Semi-arid Area: Case of Massa Catchment, Morocco

Danni, Saadou Oumarou; Bouchaou, Lhoussaine; Elmouden, Ahmed; N’da, B.; Brahim, Yassine Ait; Malki, Mouna

doi:10.1007/978-3-319-69356-9_30

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…In contrast, unmet demand increases in other years. These results are related to the work of Bouchaou et al (2008) and Tagma et al (2009), which pointed out that the Souss region has had a number of problems related to a lack of water frequent, long-lasting droughts, and climate change especially in the last decades (Latifa et al, 2017;N'da et al, 2017;Oumarou Danni et al, 2017;Ez-zaouy et al, 2023).…”

Section: Water Demandsupporting

confidence: 62%

Understanding the trade-offs between climate change-induced aridity and agricultural water demand in the Souss basin, Morocco

Attar,

Brouziyne,

Bouchaou

et al. 2024

Front. Water

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The concept of integrated water resource management requires an in-depth analysis of water inflows into a river basin. Population growth and the uncertainties associated with climate change are causing increased water stress and droughts, which are impacting agriculture. Hence the need for studies on the impact of climate change on demand-supply interactions in river basins. In this study, a generic decision support system, ModSim, was used; for the first time in the region; to examine the agricultural water usage and demands over Souss basin in Morocco. ModSim was calibrated over the period from 1990 to 2019 using recorded data about physical processes and hydraulic infrastructures features and management. The simulations succeeded in replicating different deficit episodes at the various irrigated perimeters. During the simulated period from 2012 to 2019, it was observed that the water supplies for the different dams in the basin experienced a decline ranging from 38% to 89%. As a result, the average total unmet demand for surface water from reservoirs in irrigated areas reached 201 mm3 between 1990 and 2019 and the monthly average demand increases by 55% in the dry season, compared to the demands in the rest of the year. The significant amount of unmet demand across all sites suggests that demands are satisfied by the withdrawal of water from groundwater resources. The adopted approach has proven to be a useful decision support tool to understand water resources planning challenges. Water managers require such reliable tools to represent the basin's water trade-offs. Thus, additional investigation to improve the representation of groundwater/surface water interaction approaches is required to enhance the evaluation of the consequences of different uses, especially in arid and semi-arid regions with significant water stress such as Souss. A conceptual framework as well as a detailed discussion have been produced in order to guide efficient water management and governance.

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Section: Water Demandsupporting

confidence: 62%

Understanding the trade-offs between climate change-induced aridity and agricultural water demand in the Souss basin, Morocco

Attar,

Brouziyne,

Bouchaou

et al. 2024

Front. Water

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“…The isotope composition of groundwater sampled from a spring or well located at a relatively low elevation (elevation z s ) is represented by

δ_{G ((), z_{s})}

(see well in lowland in conceptual diagram). If the well extracts groundwater recharged at higher elevations (e.g., elevation z i , where z s < z i ), and the isotope composition of higher elevation recharge (

δ_{R ((), z_{i})}

) differs from that of local precipitation in the lowlands (δ P(annual) ), it may be possible to estimate the elevation at which the sample of groundwater recharged (e.g., right panel; e.g., see δ 18 O‐elevation figures by Mazor et al, ; Nathenson et al, ; Caranto, ; Jefferson et al, , ; Günay, ; Paternoster et al, ; González‐Fernández et al, ; Jeelani et al, ; N'da et al, ; Oumarou Danni et al, ; Peters et al, ).…”

Section: Recharge Sources and Elevationsmentioning

confidence: 99%

Global Isotope Hydrogeology―Review

Jasechko

2019

Reviews of Geophysics

218

124

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Groundwater 18O/16O, 2H/1H, 13C/12C, 3H, and 14C data can help quantify molecular movements and chemical reactions governing groundwater recharge, quality, storage, flow, and discharge. Here, commonly applied approaches to isotopic data analysis are reviewed, involving groundwater recharge seasonality, recharge elevations, groundwater ages, paleoclimate conditions, and groundwater discharge. Reviewed works confirm and quantify long held tenets: (i) that recharge derives disproportionately from wet season and winter precipitation; (ii) that modern groundwaters comprise little global groundwater; (iii) that “fossil” (>12,000‐year‐old) groundwaters dominate global aquifer storage; (iv) that fossil groundwaters capture late‐Pleistocene climate conditions; (v) that surface‐borne contaminants are more common in younger groundwaters; and (vi) that groundwater discharges generate substantial streamflow. Groundwater isotope data are disproportionately common to midlatitudes and sedimentary basins equipped for irrigated agriculture, but less plentiful across high latitudes, hyperarid deserts, and equatorial rainforests. Some of these underexplored aquifer systems may be suitable targets for future field testing.

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A Multi-Tool 3D Conceptual Model to Elucidate Groundwater Processes, Vulnerability, and Recharge Patterns in a Semi-Arid Region: A Case Study from Morocco

Rafik,

Ait Brahim,

Ouhamdouch

et al. 2023

Earth Syst Environ

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Isotopic and Chemical Tracers for the Sustainable Management of Water Resources in Semi-arid Area: Case of Massa Catchment, Morocco

Cited by 3 publications

References 17 publications

Understanding the trade-offs between climate change-induced aridity and agricultural water demand in the Souss basin, Morocco

Understanding the trade-offs between climate change-induced aridity and agricultural water demand in the Souss basin, Morocco

Global Isotope Hydrogeology―Review

A Multi-Tool 3D Conceptual Model to Elucidate Groundwater Processes, Vulnerability, and Recharge Patterns in a Semi-Arid Region: A Case Study from Morocco

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