Article
Environmental Sciences
Damien Jacob, Philippe Ackerer, Husam Musa Baalousha, Frederick Delay
Summary: Qatar's water resources have been overexploited, leading to depletion and degradation. To increase available water, the plan is to use regional aquifers for forced injection. The model considers various injection rates to maintain a constant stock of water supply.
Article
Multidisciplinary Sciences
Roohollah Noori, Mohsen Maghrebi, Ali Mirchi, Qiuhong Tang, Rabin Bhattarai, Mojtaba Sadegh, Mojtaba Noury, Ali Torabi Haghighi, Bjorn Klove, Kaveh Madani
Summary: Iran faces severe depletion and salinity issues in its groundwater resources, with an increase in extraction points but a decrease in annual withdrawal. Over-extraction of nonrenewable water leads to declining groundwater levels and increased salinity hazard.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Andreas Hartmann, Scott Jasechko, Tom Gleeson, Yoshihide Wada, Bartolome Andreo, Juan Antonio Barbera, Heike Brielmann, Lhoussaine Bouchaou, Jean-Baptiste Charlier, W. George Darling, Maria Filippini, Jakob Garvelmann, Nico Goldscheider, Martin Kralik, Harald Kunstmann, Bernard Ladouche, Jens Lange, Giorgia Lucianetti, Jose Francisco Martin, Matias Mudarra, Damian Sanchez, Christine Stumpp, Eleni Zagana, Thorsten Wagener
Summary: Groundwater pollution poses a threat to human and ecosystem health globally, with focused recharge being the primary reason for rapid transport of pollutants into groundwater, posing a significant risk to groundwater quality.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Environmental Sciences
Patricia Spellman, Charles Breithaupt, Paul Bremner, Jason Gulley, John Jenson, Mark Lander
Summary: Karst vadose zone heterogeneity affects aquifer recharge timing and magnitude, making storage dynamics important for water resource management in vulnerable karst regions.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Civil
Eddie W. Banks, Peter G. Cook, Michael Owor, Joseph Okullo, Seifu Kebede, Dessie Nedaw, Prince Mleta, Helen Fallas, Daren Gooddy, Donald John MacAllister, Theresa Mkandawire, Patrick Makuluni, Chikondi E. Shaba, Alan M. MacDonald
Summary: Groundwater is a crucial water resource for rural communities in sub-Saharan Africa, but understanding its sustainability and vulnerability is increasingly important with growing development. Research in Ethiopia, Uganda, and Malawi indicates recharge rates of 30-330 mm y(-1), suggesting sustainable abstraction from low-yielding hand pumped boreholes. However, E. coli contamination at some sites highlights the need for improved well construction to safeguard water quality.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Younes Fakir, Houssne Bouimouass, Jim Constantz
Summary: This study in Central Morocco under semi-arid conditions found that intermittent streams play a significant role in groundwater recharge. More than 90% of estimated potential recharge occurred during winter and spring, with most recharge generated during flooding conditions. Clear seasonality in relations between streamflow amounts, streamflow loss, and depth of wetting into the streambed were distinguished over the study year.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Sciences
Sabarathinam Chidambaram, Banajarani Panda, Tirumalesh Keesari, M. Prasanna, Dhiraj Kr Singh, A. L. Ramanathan
Summary: The dynamics of coastal aquifers can be understood through geochemical and isotopic signatures. In this study, groundwater recharge processes in coastal Tamil Nadu, South India were evaluated using major ion chemistry and environmental isotopes. The results showed that shallow groundwater had contributions from multiple recharge sources, while deeper groundwater was mainly recharged by precipitation. The isotopic variations in different areas indicated different sources and influences. The groundwater in the study area was found to be brackish to saline, with minor influence from anthropogenic activities.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Abolfazl Nazari Giglou, Rouzbeh Ross Nazari, Farhad Jazaei, Maryam Karimi
Summary: This study assessed the contribution of two adjacent watersheds with low and high urban development to the recharge process of the Memphis aquifer in central Jackson, Tennessee. The results showed that, per unit area, the watershed with low urban development contributed more to recharge and riverbed leakage compared to the watershed with high urban development. However, in terms of total recharge and riverbed leakage, the watershed with high urban development contributed more.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Cristian J. Apaza-Coria, Inti E. Rodriguez-Levy, Mirko Delfin Soruco, Marijke Huysmans
Summary: The Valle Alto basin in Bolivia is vital for agriculture and economic development. To ensure sustainable management of water resources, knowledge about groundwater recharge locations and extent is necessary. By using the Schosinsky method, researchers calculated the recharge rate and identified potential groundwater recharge areas in the basin. The study provides important information about the basin's water resources for the first time on a regional level.
HYDROGEOLOGY JOURNAL
(2022)
Article
Environmental Sciences
B. Nlend, H. Celle-Jeanton, F. Huneau, E. Garel, S. Ngo Boum-Nkot, J. Etame
Summary: The study in sub-Saharan Africa reveals a high recharge rate of 600-760 mm/year in the Mio-Pliocene aquifer in Douala, with increased mineralization controlled by anthropogenic activities. The research on chemical components in groundwater can contribute to enhancing groundwater resources management.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
James K. Adamson, Wm Javan Miner, Pierre-Yves Rochat, Emmanuel Moliere, Michael Piasecki, G. Thomas LaVanchy, Sergio Perez-Monforte, Maria Rodriquez-Vera
Summary: Mountain block recharge is an important component of the water budget for alluvial aquifers, but understanding and quantifying its dynamics is challenging. This study investigates two alluvial aquifers in Haiti and finds that river infiltration from the mountain block is a major source of recharge. The study also highlights the significance of the Massif de la Selle carbonate aquifer system, which has a much larger recharge than the alluvial aquifers and supplies a significant portion of the water to the metropolitan area of Port-au-Prince.
HYDROGEOLOGY JOURNAL
(2022)
Article
Water Resources
Abdu Y. Yimam, Feleke K. Sishu, Tewodros T. Assefa, Tammo S. Steenhuis, Manuel R. Reyes, Raghavan Srinivasan, Seifu A. Tilahun
Summary: By studying the Robit Bata and Dengeshita watersheds in the Upper Blue Nile basin of Ethiopia, we modified the Water Table Fluctuation (WTF) method to include lateral flow controlled by gravity. Our findings show that the modified WTF method is simple and practical for determining aquifer recharge for highlands and other sloping aquifers.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2023)
Article
Ecology
Ismail Abd-Elaty, Salvatore Straface, Alban Kuriqi
Summary: This study addresses the issue of saltwater intrusion accelerated by sea-level rise in different climate regions by proposing specific measures such as constructing reservoirs, physical barriers, artificial recharge, and desalination. Numerical simulations show that selecting appropriate strategies based on climate conditions can effectively reduce the risk of saltwater intrusion.
ECOLOGICAL ENGINEERING
(2021)
Article
Water Resources
Mauro Rossi, Marco Donnini, Giulio Beddini
Summary: This study focused on estimating groundwater recharge (GR) in Italy using a water balance method. The results showed variations in GR over time, with exceedances in 1992 and 2015. By comparing GR with anthropogenic water withdrawals, the study also evaluated sustainable water use in Italy. The findings provide new hydrological insights for the region.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Environmental Sciences
Li Chen, Xiaojun Wang, Gelong Liang, Haicheng Zhang
Summary: This study evaluated the impact of groundwater drainage on groundwater flow using the Hetaoyu coal field in the Longdong area, China as a case study. The results showed that mine construction significantly affected groundwater reserves, particularly in the Cretaceous aquifer. Continued mining activities would lead to further groundwater level decline, posing challenges to coal mining safety and groundwater resource protection.
Article
Environmental Sciences
Africa de la Hera-Portillo, Julio Lopez-Gutierrez, Beatriz Mayor, Elena Lopez-Gunn, Hans Jorgen Henriksen, Ryle Norskov Gejl, Pedro Zorrilla-Miras, Pedro Martinez-Santos
Summary: Groundwater stored in aquifers can be influenced by various natural, induced and/or anthropogenic disturbances, with groundwater extraction being the main disturbance. The resilience of aquifers is a key tool in assessing sustainable groundwater management alternatives. Research shows that long-term high quality data is essential for understanding aquifer dynamics.
Article
Engineering, Civil
P. Martinez-Santos, H. F. Aristizabal, S. Diaz-Alcaide, V Gomez-Escalonilla
Summary: This study utilized machine learning to predict water bodies in a western Colombian catchment, demonstrating better performance in flat regions and decreased accuracy in mountainous areas.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Silvia Diaz-Alcaide, Wennegouda Jean-Pierre Sandwidi, Pedro Martinez-Santos, Miguel Martin-Loeches, Jose Luis Caceres, Naomi Seijas
Summary: Ensuring safe water access globally is a key objective of the Sustainable Development Goals. Water access is a complex concept that involves various factors such as collection time, distance, quality, affordability, and reliability. GIS-based methods are particularly useful in improving water access estimates, especially in rural areas of developing countries.
Article
Engineering, Civil
P. Martinez-Santos, S. Diaz-Alcaide, A. De la Hera-Portillo, Victor Gomez-Escalonilla
Summary: This paper introduces a machine learning approach to map groundwater-dependent ecosystems by extrapolating from known wetland and non-wetland areas characteristics. The method, illustrated in a UNESCO Biosphere Reserve in central Spain, uses supervised classification algorithms trained on ground truth samples and checked against an official inventory of groundwater-dependent ecosystems for calibration. The results show a high success rate in predicting the presence of groundwater-dependent ecosystems, demonstrating the potential of this method in optimizing fieldwork for wetland protection in land use planning.
JOURNAL OF HYDROLOGY
(2021)
Article
Forestry
Antonio J. Molina, Rafael M. Navarro-Cerrillo, Javier Perez-Romero, Reyes Alejano, Juan F. Bellot, Juan A. Blanco, Jesus J. Camarero, Arnaud Carrara, Victor M. Castillo, Teresa Cervera, Gonzalo G. Barbera, Maria Gonzalez-Sanchis, Alvaro Hernandez, Juan B. Imbert, Maria N. Jimenez, Pilar Llorens, Manuel E. Lucas-Borja, Gerardo Moreno, Mariano Moreno-de las Heras, Francisco B. Navarro, Guillermo Palacios, Noemi Palero, Maria A. Ripoll, David Regues, Francisco J. Ruiz-Gomez, Alberto Vilagrosa, Antonio D. del Campo
Summary: Adaptive forest management (AFM) is urgently needed to address the uncertainty of climate change impacts on forests. Research groups in Spain have produced valuable expertise in ecophysiology, ecohydrology, and forest ecology, which can enhance AFM implementation. Establishing logical frameworks will help define appropriate treatments for AFM.
Article
Environmental Sciences
Gomez-Escalonilla Victor, Vogt Marie-Louise, Destro Elisa, Isseini Moussa, Origgi Giaime, Djoret Daira, Martinez-Santos Pedro, Holecz Francesco
Summary: This study uses machine learning method for mapping groundwater potential in crystalline domains, finding that random forest and extra trees classifiers perform the best among twenty classifiers tested, and the choice of performance metrics influences the relevance of explanatory variables, while seasonal variations from satellite images contribute to successful groundwater potential mapping.
GEOCARTO INTERNATIONAL
(2022)
Article
Ecology
Issam Touhami, Hassane Moutahir, Dorsaf Assoul, Kaouther Bergaoui, Hamdi Aouinti, Juan Bellot, Jose Miguel Andreu
Summary: The study found significant changes in vegetation state in the Mediterranean region, including shifts in the start and end of season, as well as season length. Precipitation and maximum temperature were identified as key climate parameters explaining these changes. NDVI and SPEI showed high correlation on longer time scales.
ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
(2022)
Article
Endocrinology & Metabolism
Pascal Gottmann, Thilo Speckmann, Mandy Stadion, Erika Zuljan, Heja Aga, Michael Sterr, Maren Buettner, Patricia Martinez Santos, Markus Jaehnert, Stefan R. Bornstein, Fabian J. Theis, Heiko Lickert, Annette Schuermann
Summary: Progressive dysfunction and failure of insulin-releasing beta-cells are key characteristics of type 2 diabetes (T2D). By using islet single-cell RNA sequencing on two obese mouse strains with different susceptibilities to diabetes, the researchers found that the composition of beta-cell clusters differed significantly between strains after feeding them a diabetogenic diet. Diabetes-resistant mice developed a protective beta-cell cluster, while diabetes-prone mice progressed towards stress-related clusters. Further experiments showed that the protective cluster exhibited reduced beta-cell identity and decreased stress response and apoptosis, potentially explaining the enhanced beta-cell survival in diabetes-resistant mice. In contrast, the beta-cells of diabetes-prone mice displayed metabolic pressure and endoplasmic reticulum stress, leading to beta-cell loss. These findings suggest that the failure of diabetes-prone mice to adapt their gene expression in response to rising blood glucose levels contributes to beta-cell failure and the development of diabetes.
Article
Forestry
Hamdi Aouinti, Hassane Moutahir, Issam Touhami, Juan Bellot, Abdelhamid Khaldi
Summary: This study used maximum entropy modeling software to investigate the current and future potential distribution of Acer monspessulanum in the Mediterranean basin and West Asia. The results revealed that temperature seasonality, elevation, mean annual temperature, mean annual precipitation, and max temperature of the warmest month were the primary factors influencing the species distribution. Under climate change scenarios, the suitable area for the Montpellier Maple is expected to decrease significantly, shifting towards the southwestern regions of its distribution.
Review
Plant Sciences
I. Touhami, T. Rzigui, L. Zribi, A. Ennajah, S. Dhahri, H. Aouinti, M. T. Elaieb, S. Fkiri, H. Ghazghazi, A. Khorchani, K. Candelier, A. Khaldi, M. L. Khouja
Summary: According to IPCC's sixth assessment report, global climate change is now indisputable. Tunisia, like other countries, has experienced the impacts of climate change, including rising temperatures, heatwaves, and altered precipitation patterns. Drought is a primary factor contributing to the decline and dieback of trees, making them more vulnerable to pests and diseases. The study conducted in this research aims to assess the effects of climate change on forest ecosystems in Tunisia, considering natural disturbances and the adaptability of forest species. The findings indicate a negative trend in drought variability in Tunisian forests, and the loss of tree cover due to fires in 2021 further emphasizes the need for adaptation strategies.
Article
Forestry
L. Morcillo, J. C. Munoz-Rengifo, J. M. Torres-Ruiz, S. Delzon, H. Moutahir, A. Vilagrosa
Summary: Drought-related tree mortality is a global issue that affects plant hydraulics, carbon economy, growth, and allocation. However, identifying tree mortality thresholds based on these variables is challenging under field conditions. In this study, we found that high levels of xylem embolism and a negative hydraulic safety margin were associated with high mortality rates in Aleppo pine populations affected by an extreme drought event. We also observed post-drought forest weakening and mortality related to reduced water transport capacity, plant growth, carbohydrate contents, and increased pest infestation rates. These findings emphasize the importance of drought severity and hydraulic dysfunction on tree mortality, as well as post-drought conditions for recovery processes.
Article
Environmental Sciences
I Touhami, E. Chirino, S. Fkiri, H. Aouinti, H. Moutahir, J. Bellot, T. Rzigui, A. Khaldi, Z. Nasr
Summary: The study analyzed the impact of extreme drought years on cork oak forests in northwest Tunisia during the period of 1988-1995, revealing that extreme drought years can cause tree mortality and decline, especially in areas with frequent prolonged drought periods.
EURO-MEDITERRANEAN JOURNAL FOR ENVIRONMENTAL INTEGRATION
(2021)
