Search Results (124)

Water scarcity poses a critical challenge to sustainable agricultural development, particularly in arid regions such as Saudi Arabia. This study examines whether AI-compatible smart irrigation, digital water monitoring, and integrated water resource management (IWRM) are associated with improvements in agricultural water sustainability. Using a regional–crop panel dataset covering 13 Saudi administrative regions and six major crops over the period 2010–2024, the analysis evaluates their relationships with water-use efficiency, crop water productivity, and crop yield. To address persistence, endogeneity, and unobserved heterogeneity, the study employs a comprehensive multi-method empirical strategy combining dynamic panel models (System GMM), difference-in-differences, and event-study designs. The results provide internally consistent and empirically robust evidence in support of the proposed hypotheses. AI-compatible smart irrigation is positively and significantly associated with improvements in agricultural water efficiency and productivity, with effects that strengthen over time, reflecting gradual technology assimilation and learning processes. These findings capture the performance gains from irrigation modernization that enables data-driven and algorithm-supported decision-making, rather than the direct causal impact of autonomous artificial intelligence deployment. Integrated water resource management independently exhibits a positive association with higher agricultural performance, underscoring the importance of coordinated governance alongside technological adoption. Digital water monitoring shows a positive and statistically significant relationship with all outcome measures and appears to reinforce the effectiveness of both AI-compatible irrigation and integrated water governance. Robustness analyses excluding extreme drought years confirm that these relationships reflect persistent efficiency patterns rather than transitory climatic shocks. Overall, the findings provide context-specific and methodologically rigorous evidence that AI-compatible irrigation, digital monitoring, and integrated water governance operate as complementary components of agricultural water sustainability in a highly water-scarce economy, offering evidence-informed and policy-relevant insights, aligned with Saudi Vision 2030. Full article

Advancing Integrated Water Resources Management (IWRM) is essential for integrating land and water strategies and ensuring access to safe and secure water services. Yet, assessing the quality of IWRM implementation remains a persistent challenge for policy and practice. This study presents the first systematic review of 375 empirical articles to consolidate evidence on how enablers and obstacles shape IWRM’s effectiveness in advancing Sustainable Territorial Development (S-TD). Following PRISMA guidelines and combining bibliometric and qualitative coding procedures, we identify ten categories of enablers and eleven categories of obstacles. Results show that institutional strengthening, stakeholder participation, and technological innovation are the most frequent enablers, while fragmentation, coordination challenges, and financial limitations are the most prevalent obstacles. Beyond frequency patterns, this review highlights that outcomes depend on the configurations and interactions of these factors, which condition IWRM’s capacity to steer sustainable development trajectories in the territory. By comparing enablers and obstacles across nexus sectors (food, energy, land) and geographic scales (sub-basin, basin, transboundary, urban, national), we delineate scale- and sector-sensitive pathways linking IWRM to S-TD. To support further research, we provide an open-access dataset as a unique resource for replication, comparative analysis, and policy design, enabling evidence-based decision-making toward sustainability and resilience across diverse geographical and institutional contexts. Full article

Japan has largely achieved the “first half” of SDG 6—universal access to safe drinking water and sanitation—through decades of intensive investment in water supply and sewerage systems, implementation of the Total Pollutant Load Control System, and stringent regulation of industrial effluents. National indicators show that coverage of safely managed drinking water and sanitation services is nearly 99%, and domestic statistics report high compliance rates for BOD/COD-based environmental standards in rivers, lakes, and coastal waters. Conversely, the “second half” of SDG 6 reveals persistent gaps: ambient water quality (6.3.2) remains at 57% (2023 data), while water stress (6.4.2) is at approximately 21.6%. Furthermore, SDG 6.6.1 shows that 3% of water basins are experiencing rapid changes in surface water area (2020 data), with ecosystems increasingly threatened by hypoxia in enclosed bays and climate-induced vulnerabilities. Drawing on global comparisons, this review synthesizes Japan’s progress toward SDG 6, elucidates the structural drivers for remaining gaps, and proposes policy pathways for a nature-positive water future. Using national statistics (1970–2023) and the DPSIR framework, our analysis confirms that improvements in BOD/COD compliance plateaued around 2002, reinforcing concerns that point-source measures alone are insufficient to address diffuse pollution, groundwater nitrate contamination, and emerging contaminants like PFAS. We propose six strategic directions: (1) climate-resilient water systems leveraging groundwater; (2) smart infrastructure renewal; (3) advanced treatment for emerging contaminants; (4) basin-scale IWRM enhancing transboundary cooperation; (5) data transparency and citizen engagement; and (6) scaled nature-based solutions (NbS) integrated with green–gray infrastructure. The paper concludes by outlining priorities to close the gaps in SDG 6.3 and 6.6, advancing Japan toward a sustainable, nature-positive water cycle. Full article

Kazakhstan’s 2025 Water Code aims to institutionalize Integrated Water Resources Management (IWRM), but its success is threatened by a persistent “implementation gap” between policy requirements and the workforce’s practical competencies. This study provides empirical evidence of a persistent misalignment between water-related higher education and emerging governance demands in Kazakhstan by conceptualizing the implementation gap as a human-capital deficit. We conducted a repeated two-wave survey of students enrolled in “Water Resources” programs (n₁ = 39, n₂ = 82) to empirically diagnose this gap and examine changes in educational preferences over time. The findings reveal an overwhelming demand for dual education (97.6%), alongside a statistically significant shift (χ²(1) = 33.53, p < 0.001) from theory-oriented learning (56.4% to 4.9%) toward practice-oriented formats (30.8% to 62.2%). Key reported constraints include limited access to modern laboratories (47.6%) and insufficient real-world professional experience (28%). Taken together, these results indicate a structural misalignment between academic training and the competency requirements implied by ongoing water-sector reforms. The study concludes that dual education may function as an institutional mechanism for narrowing the policy-to-competence gap, supporting efforts to operationalize the 2025 Water Code and advance Sustainable Development Goals 4 and 6. Full article

This paper examines the Harirud (Harirod, Tejen) River Basin, a vital transboundary water source shared by Afghanistan, Iran, and Turkmenistan. The basin supports farming, energy production, and home supply in a dry area. Despite its ecological, socio-economic, and geopolitical importance, the basin lacks a cooperative governance framework, leaving it vulnerable to unilateral development, institutional weakness, and climate stress. Addressing an important research gap, this study investigates how unilateral water infrastructure and climate change jointly reshape water security and governance between Afghanistan and Iran. A qualitative case study approach integrates insights from hydropolitics, benefit sharing, and environmental security to analyse ecological and political dynamics. Findings show that climate change has disrupted hydrological regimes—average temperatures have increased by about 1.7 °C and rainfall has declined by roughly 150 mm since 1980. Unilateral dam constructions have altered seasonal flows and intensified hydro-political tensions. The study concludes that implementing Integrated Water Resources Management (IWRM), joint hydrological monitoring, climate adaptation, and equitable benefit-sharing can transform the Harirud from a contested river into a foundation for regional stability and sustainable development. Full article

Andean high-altitude ecosystems are critical to sustaining biodiversity, agriculture, and the livelihoods of indigenous populations. However, accelerating glacier retreat, irregular precipitation, and intensive water use have exacerbated ecosystem degradation and water insecurity. This study conducts a scoping review (PRISMA-ScR) of peer-reviewed and grey literature (2000–2025) to examine how water footprint (WF) management through its blue, green, and gray components can be operationalized within an Integrated Water Resource Management (IWRM) and Human Rights-Based Approach (HRBA) to ensure equitable access and ecological sustainability in the Andes. Quantitative synthesis from 72 sources shows that agricultural withdrawals account for over 78% of total blue-water use, while glacier-fed runoff has declined by 32% over the past two decades. Empirical evidence from Peru, Ecuador, and Bolivia demonstrates that integrating indigenous irrigation systems with modern efficiency technologies reduces consumptive water use by up to 25% and enhances wetland biodiversity indices by 15–20%. These findings support the development of an Integrated Water-Biodiversity-Rights Framework (IWBRF) that links WF indicators (WFAM and ISO 14046) with ecosystem integrity and social equity metrics. The study advances theory by clarifying how WF indicators inform rather than replace IWRM and HRBA decision processes, offering a practical model for achieving water justice, biodiversity protection, and climate resilience in fragile Andean ecosystems. Full article

This article examines the effects of climate change on the 32 million inhabitants of the Megalopolis of Central Mexico (MCM), which is threatened by chaotic urbanization, land-use changes, the deforestation of the Forest of Water by organized crime, unsustainable agriculture, and biodiversity loss. Expensive hydraulic management extracting water from deep aquifers, long pipes exploiting water from neighboring states, and sewage discharged outside the endorheic basin result in expensive pumping costs and air pollution. This mismanagement has increased water scarcity. The overexploitation of aquifers and the pollution by toxic industrial and domestic sewage mixed with rainfall has increased the ground subsidence, damaging urban infrastructure and flooding marginal neighborhoods with toxic sewage. A system approach, satellite data, and participative research methodology were used to explore potential water scarcity and weakened water security for 32 million inhabitants. An alternative nature-based approach involves recovering the Forest of Water (FW) with IWRM, including the management of Natural Protected Areas, the rainfall recharge of aquifers, and cleaning domestic sewage inside the valley where the MCM is found. This involves recovering groundwater, reducing the overexploitation of aquifers, and limiting floods. Citizen participation in treating domestic wastewater with eco-techniques, rainfall collection, and purification filters improves water availability, while the greening of urban areas limits the risk of climate disasters. The government is repairing the broken drinking water supply and drainage systems affected by multiple earthquakes. Adaptation to water scarcity and climate risks requires the recognition of unpaid female domestic activities and the role of indigenous people in protecting the Forest of Water with the involvement of three state authorities. A digital platform for water security, urban planning, citizen audits against water authority corruption, and aquifer recharge through nature-based solutions provided by the System of Natural Protected Areas, Biological and Hydrological Corridors [SAMBA] are improving livelihoods for the MCM’s inhabitants and marginal neighborhoods, with greater equity and safety. Full article

Climate change is fundamentally transforming global water systems, affecting the availability, quality, and ecological dynamics of water resources. This review synthesizes current scientific understanding of climate change impacts on hydrological systems, with a focus on freshwater ecosystems, and regional water availability. Rising global temperatures are disrupting thermal regimes in rivers, lakes, and ponds; intensifying the frequency and severity of extreme weather events; and altering precipitation and snowmelt patterns. These changes place mounting stress on aquatic ecosystems, threaten water security, and challenge conventional water management practices. The paper also identifies key vulnerabilities across diverse geographic regions and evaluates adaptation strategies such as integrated water resource management (IWRM), the water, energy and food (WEF) nexus, ecosystem-based approaches (EbA), the role of advanced technology and infrastructure enhancements. By adopting these strategies, stakeholders can strengthen the resilience of water systems and safeguard critical resources for both ecosystems and human well-being. Full article

Water is a vital resource for human survival, economic development, and environmental sustainability. It is essential to agriculture, energy production, public health, and biodiversity preservation. Efficient water management is even more important in areas that are prone to scarcity. This paper presents a systematic review of the management of water resources in South Africa, a country characterized by significant water scarcity challenges compounded by its socio-economic and ecological needs. South Africa’s limited freshwater resources are under extreme stress due to its semi-arid climate, unequal rainfall distribution, expanding population, and industrial needs. The nation’s water security has also been made more difficult by historical injustices, climatic fluctuations, and decaying infrastructure. Through a systematic review of 60 scholarly articles published between 2011 and 2025 in the Web of Science database, this study discusses the historical context of water management in South Africa, including the legacy of apartheid-era policies and their impact on access to water. It also examines current management practices, governance structures involving national and local authorities, the role of key institutions such as the Department of Water and Sanitation (DWS), climate change impact on water availability, population growth and urbanization, inequality and access, and challenges in South Africa’s water resources management (WRM). In particular, this review highlights the integration of scientific water quality and biostability assessment into the Integrated Water Resources Management (IWRM) framework in order to produce actionable insights that enhance resilience, sustainability, and equity in WRM. Furthermore, it explores future strategies for sustainable WRM, emphasizing the importance of IWRM, community participation, technological innovation, and climate change adaptation. Through this comprehensive analysis, the paper aims to contribute to a deeper understanding of the complexities and opportunities in ensuring water security for all South Africans. Full article

Latin American countries continue to face critical challenges in ensuring safe and continuous access to drinking water, particularly in rural and peri-urban areas. This article presents a territorial and institutional diagnosis of drinking water access in the Piura region (Peru). It is a coastal region with approximately 2 million inhabitants, characterized by environmental stress, governance fragmentation, and social inequality. The study adopts a structural documentary approach based on academic literature and validated institutional data to analyze spatial disparities in water coverage, continuity, and quality. It identifies structural and institutional barriers—such as overlapping mandates, limited local capacity, and the absence of monitoring systems—to universal access. The findings also highlight the limitations of isolated innovation efforts, such as pilot projects led by universities and private companies, which often lack mechanisms for institutional integration and policy scaling. The analysis is framed within international water governance frameworks, including the OECD Principles and the Integrated Water Resources Management paradigm, and aligns with Sustainable Development Goal 6. The study offers a multi-scalar perspective grounded in local realities and identifies governance research gaps in rural Peru. Results underscore the need for territorialized planning, strengthened coordination, and inclusive governance to achieve sustainable and equitable water access in fragile contexts. Full article

The depletion of water resources caused by climate change and human activities is a pressing global issue. Lake Ereen is one of the ten natural landmarks of the Gobi-Altai of western Mongolia is included in the list of “important areas for birds” recognized by the international organization Birdlife. However, the construction of the Taishir Hydroelectric Power Station, aimed at supplying electricity to the western provinces of Mongolia, had a detrimental effect on the flow of the Zavkhan River, resulting in a drying-up and pollution of Lake Ereen, which relies on the river as its water source. This study assesses the pollution levels in Ereen Lake and determines the feasibility of its rehabilitation by redirecting the flow of the Zavkhan River. Field studies included the analysis of water quality, sediment contamination, and the composition of flora. The results show that the concentrations of ammonium, chlorine, fluorine, and sulfate in the lake water exceed the permissible levels set by the Mongolian standard. Analyses of elements from sediments revealed elevated levels of arsenic, chromium, and copper, exceeding international sediment quality guidelines and posing risks to biological organisms. Furthermore, several species of diatoms indicative of polluted water were discovered. Lake Ereen is currently in a eutrophic state and, based on a water quality index (WQI) of 49.4, also in a “polluted” state. Mass balance calculations and box model analysis determined the period of pollutant replacement for two restoration options: drying-up and complete removal of contaminated sediments and plants vs. dilution-flushing without direct interventions in the lake. We recommend the latter being the most efficient, eco-friendly, and cost-effective approach to rehabilitate Lake Ereen. Full article

Wetlands, as critical ecological systems, face increasing threats from anthropogenic pressures and climate change. This study investigates dynamic water allocation strategies for the restoration of Lake Marmara, a nationally important wetland within the Gediz River Basin of Türkiye, which has experienced complete desiccation in recent years. Within the scope of the PRIMA-funded “Mara-Mediterra” project, an integrated modeling approach was employed to evaluate multiple restoration scenarios using the WEAP (Water Evaluation and Planning) platform. Scenarios varied based on the initial storage capacity of Gördes Dam, irrigation demands, environmental flow priorities, and a potential water diversion investment from the Tabaklı reach. Results indicate that under current conditions, Lake Marmara’s ecological water needs can be sustained without the Tabaklı investment. However, under 2050 climate projections, scenarios lacking the Tabaklı investment or deprioritizing ecological needs consistently failed to meet the lake’s minimum water thresholds. Conversely, scenarios combining moderate dam storage levels, environmental prioritization, and Tabaklı inflow succeeded in restoring lake volumes by over 90%. These findings highlight the need for adaptive water planning that aligns with projected hydro-climatic shifts to ensure long-term wetland sustainability. Full article

This study examines the critical water management crisis facing the Río Turbio Basin (RTB) in Mexico’s Bajío region, Guanajuato. The RTB’s challenges are driven by a convergence of environmental degradation, industrial pollution, groundwater over-extraction, and fragmented governance structures. Intensified by climate change, urban expansion, and rising industrial demands, these issues place the basin’s long-term sustainability at serious risk. Employing a qualitative approach, this research synthesizes insights from expert interviews and stakeholder perspectives, highlighting the social, economic, environmental, and institutional dimensions of the crisis. Key findings point to a lack of collaboration among governmental bodies, industry, and local communities, resulting in escalating water scarcity, economic vulnerability in agriculture, and rising social tensions over resource allocation. The RTB exemplifies broader regional water management issues, where institutional fragmentation and the absence of strategic, basin-specific policies undermine sustainable practices. Without coordinated, multi-sectoral interventions, projections indicate worsening declines in water quality and availability, with potentially irreversible effects on ecosystems and public health. This study underscores the need for integrated water resource management (IWRM) strategies, combining technological, regulatory, and community-driven solutions to address the unique socio-environmental challenges of the Bajío region. Full article

Climate change causes a problem for the energy system in Poland, which is based on the availability of water resources throughout the year. In situations of water scarcity resulting from increased demand or due to water deficits caused by the phenomenon of drought, it is necessary to develop efficient management methods that take into account the needs of all stakeholders and obtaining approval for new investments. The principles of Integrated Water Resources Management (IWRM) enable this efficiency to be achieved. The research used 51 questions in 3 surveys to assess the potential for IWRM implementation in 3 catchments located in an area of southern and south-western Poland with different topography, regional and socio-economic characteristics, i.e., the Białka (tourism domination), the Nysa Kłodzka (potential for hydropower) and the Widawa (lowland character). In order to interpret the results, the author’s method of grouping survey questions from different sources was applied. The results of the study showed that there is considerable social potential and willingness to develop cooperation between different stakeholder groups but there are barriers related to the state of knowledge and its transfer between stakeholders. It is important not to ignore the stakeholders whose resistance can effectively delay investment processes. Full article

This study applies panel techniques with macro variables to analyze the connection between date palms production and water management in GCC countries using the Bayesian random and mixed effects models. Also, this study utilizes panel-corrected standard error (PCSE) and feasibly generalized least squares (FGLSs) methods to test the robustness and verify the Bayesian results. By utilizing a Bayesian longitudinal model, this study not only fills in a critical research gap but also provides a fresh perspective on the dynamics of water management practices and their impact on date palm cultivation over time. The results of this study confirm that the posterior means for coefficients of the water efficiencies for all purposes are positive with a magnitude of 11%, 28%, and 125%, respectively, for agriculture, services, and industrial purposes, determining that the Bayesian inference is efficient and reasonable. This result indicates the fit of the model, the validation of the results, and the knowledge that decision-making can suggest water management strategies for date palm cultivation. The findings from the PCSE and FGLSs models confirm that efficient water use in services (β = −0.329, significant at 1%) and agriculture (β = −2.834, significant at 1%) can lead to increased competition for limited water resources, reducing water availability for palm cultivation. Water use efficiency for industrial purposes (β = 0.503, significant at 1%) shows a positive relationship. Industrial water efficiency practices, such as water recycling, can help preserve water resources, managing more water available for agricultural activities. In addition, industrial water efficiency initiatives often involve technological innovations that can be applied to agriculture, improving water management practices in palm production. Developing and implementing comprehensive strategies, such as Integrated Water Resource Management (IWRM), that consider water needs for all purposes and establish coordinated water distribution plans to ensure sustainable water use practices across various sectors are highly recommended for policymakers and stakeholders. Also, further research must be performed to investigate the implications of climate change on water resources and date production to develop adaptation strategies that enhance the resilience of date palm cultivation. This will help the development of sustainable agricultural practices that balance water conservation with agrarian productivity. Full article