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The Gaza Strip is dependent on external aid to deliver basic services, including water and sanitation. Such services are not sustainable due to the Israeli occupation and the limited financial and technical capacities of service providers and the state. This paper examines the incentives of stakeholders in delivering sanitation services in the Gaza Strip through a qualitative institutional economics analysis of literature supplemented with qualitative key informant interviews. External aid is crucial to deliver basic services in the Gaza Strip. However, this has created a dependency that undermines the sustainability of sanitation services. Donor agencies often prioritise capital expenditure on visible infrastructure, such as wastewater treatment, without addressing its long and short-term operational needs; hence the Gaza Strip's needs are continually addressed as an emergency response. The Palestinian Authority and Hamas de facto governments lack sovereignty over the Gaza Strip and Palestine. Therefore, they also lack the capacity and incentives to create an enabling environment for delivering safely managed sanitation. This paper contributes to development policy literature, the politics of infrastructure and wider politics of settler colonialism and siege basic services such as water and sanitation. [ABSTRACT FROM AUTHOR]

Emerging climate-development processes jeopardize water supply, especially in the Global South. In the Vietnamese Mekong Delta, disrupted water flows driven by climate change and hydropower development have caused water scarcity, threatening agricultural systems in both upstream and coastal areas. Based on insights from desk reviews, stakeholder workshops and interviews with local informants, this paper argues that while grey (engineered) solutions take precedence in addressing water scarcity, securing water sustainability (water retention) for agricultural resilience demands integrated 'grey–green' (engineered-nature-based) solutions. This paper suggests demands for translating this approach into the water governance framework for the delta's agricultural development. [ABSTRACT FROM AUTHOR]

The risk quotient (RQ) related to Estrone (E1), 17β–E2 (E2), Estriol (E3) and 17α-ethynylestradiol (EE2) in sediment of water resources in China was calculated using Monte Carlo Simulation (MCS) method. Fifty-four papers with 64 data-reports included in our study. The rank order of steroid hormones in sediment based on log-normal distribution in MCS was E1 (3.75 ng/g dw) > E3 (1.53 ng/g dw) > EE2 (1.38 ng/g dw) > E2 (1.17 ng/g dw). According to results, concentration of steroid hormones including E1, E2 and E3 in sediment of Erhai lake, northern Taihu lake and Dianchi river was higher than other locations. The rank order of steroid hormones based on percentage high risk (RQ > 1) was EE2 (87.00%) > E1 (70.00%) > E2 (62.99%) > E3 (11.11%). Hence, contamination control plans for steroid hormones in sediment of water resources in China should be conducted continuously. [ABSTRACT FROM AUTHOR]

This paper explores conflicts in contemporary Chile between local communities and economic elites over water resources usage, developing a frameworkthat seeks to bridge the gap between the literature on social movements and the scholarly work on business politics. It examines two similar cases. The first case deals with the conflict between large avocado producers and the rural community of Petorca, Central Chile, which has meant water deprivation for the aggrieved community. In the second case, the local community of Aysén, in Chilean Patagonia, successfully challenged business interests by halting a mega-hydroelectric project. We found that local communities can prevail when at least three conditions are met. First, the formation of a broad contingent coalition. Second, the elaboration of collective action frames to mobilise new constituencies. Third, the capacity to forge alliances with elite actors, which enhances the movement’s potential to engage in collective action. [ABSTRACT FROM AUTHOR]

This paper examines the processes by which "stakeholder" status is constructed, and the importance of sense of place to that construction in collaborative water resource governance processes. Water management often involves collaborative governance, but there can be differences between who has an interest in the outcome, and who is formally invited to participate as a "stakeholder." We examine a case study of a collaborative water governance process in Central Oregon, and found that existing models of stakeholder formation present in scholarly literature did not fully explain the dynamics of stakeholder participation. We propose a two-step "Interest-Participation" model of stakeholder formation: to be considered stakeholders, a group must not only have an interest in the outcome but must actively navigate barriers to participation. We moreover argue that collaborative engagement is an embodiment of sense of place, emphasizing the importance of competing place meanings in resource governance processes. [ABSTRACT FROM AUTHOR]

Access to water supply is still a problem in African cities. This has sparked discussions about how small-scale private actors could collaborate with the state to improve water supply. However, scholarly discussions on water supply have hardly examined the role of such actors in maintenance and repair. This paper shows how water infrastructures are maintained and repaired through hybrid labor relations between private and public actors where formal and informal practices are combined. These findings allow us to shift conceptualization in maintenance and repair beyond the state and explain how private actors enact and challenge the state's power through maintenance and repair practices. [ABSTRACT FROM AUTHOR]

In urban areas facing water stress, rainwater harvesting is essential. This paper proposes a passive rainwater harvesting system as a viable alternative for ensuring a clean water supply. The study introduces an innovative and original design for rainwater harvest. The presentation of the system is performed by analysis of efficiency and reliability of the system analytically. The optimal storage volume is determined through a 22-year precipitation data analysis using the mass balance method, ensuring high efficiency. Payback periods for various consumptions and tank sizes are calculated, showing shorter periods compared to active systems since the proposed system does not use electrical energy. The results demonstrate that 350 m3 of storage volume can assure 99% efficiency when potable water consumption is 0.01 m3/person/day. The payback period of the system was calculated to be between 5 and 10 years. The proposed system can be considered as an appropriate rainwater harvest alternative for existing buildings. [ABSTRACT FROM AUTHOR]

To examine the driver of groundwater depletion, this paper estimates a dynamic panel regression model using district-level secondary data from 1995 to 2017. Results show that the number of rainwater-harvesting structures, annual average rainfall, forest cover and net sown area improve groundwater levels. Tube well irrigation and rice cultivation can adversely affect groundwater levels. The positive relationship between surface water and improved groundwater level is consistent in all the estimated models. Hence, efficient use and management of surface and groundwater are crucial for the long-term sustainability of water resources. [ABSTRACT FROM AUTHOR]

Water reuse with Advanced Water Treatment (AWT) is increasingly appealing for urban areas seeking water supply reliability. In cities facing water scarcity, how can large-scale reuse support reliability and how do reuse operations affect water quality, energy use, and water conservation? This paper presents a systems analysis of metropolitan-scale water reuse and its effects on water supply and quality. For the case study of Los Angeles County, California, USA, hydroeconomic modeling is used to evaluate reuse as a contributor to water supply given urban water conservation, drought-induced water scarcity, and costs and benefits for supply and demand. Results indicate that AWT can be a viable source of supply especially when coupled with conservation. Across modeled scenarios, reuse provides as much as 30% of regional supplies. New water reuse with AWT becomes viable when imported water availability is 50% or less of historic values. Existing indirect potable reuse operations in the county remain important. Systemwide energy intensity of operations increases with greater reuse in the absence of water conservation. Modeled influent flow rates to wastewater treatment plants resemble historical values, but extreme flow events could pose risks. The paper offers a holistic framework to evaluate water reuse as a component of urban water management. [ABSTRACT FROM AUTHOR]

In recent years, high resolution (HR) remote sensing images have brought significant changes to land cover monitoring. Monitoring water resources, a vital and scarce commodity for human survival, is a crucial aspect of land cover monitoring and forms the foundation for water resource allocation in regions facing shortages. Hence, a universal method is necessary to address this problem and handle large-scale water resources monitoring. We explore the network structure via improving the interpretability to reduce the network layers and propose a lightweight pixel-wise semantic segmentation model, which achieves waterbody extraction from GF-1 remote sensing images with high accuracy and high speed. The proposed model structure addresses both semantic segmentation for large and small waterbodies, extracting fine-grained edge and contour information from high-resolution feature maps. Additionally, it efficiently extracts multi-scale high-level semantic information using residual convolutional blocks and dilated convolutional blocks. The multi-scale feature maps are fused, and binary classification is predicted through Support Vector Machines (SVM). Furthermore, the paper introduces a model training method with an adaptive learning rate, reducing the overall training time. To validate the model's performance, remote sensing images from GF-1 are utilized to construct a dataset. Experimental results, compared with five models, demonstrate that the proposed method achieves the highest accuracy and least training time. [ABSTRACT FROM AUTHOR]

This paper theorises the discursive construction of sewerage and sewage in relation to Johannesburg's Jukskei river. In the context of failing national and local water infrastructures, rivers in South Africa are filthier than ever and public trust in politicians is similarly polluted. We explore key moments in public discourse about sewage in the Jukskei, to consider how the visible and affective traces of faecal matter in the river speak to a broader sense of post-colonial collapse of both infrastructure and trust in those responsible for it. We argue that as both material and metaphor, shit-in-the-river serves to expose maladministration and corruption on the part of the government. But it also highlights the fragility of modernity itself as a project. In the context of massive looming water crises, huge shifts in both culture and infrastructure will be required to de-faecalise rivers specifically, and water supplies in general, in South Africa. [ABSTRACT FROM AUTHOR]

The January 2011 flood event that impacted southeast Queensland is amongst the most extensive and severe floods in terms of loss of life and property damage that the region has experienced, despite it being only the eighth highest flood on record at the Brisbane City Gauge. The spring of 2010 was the wettest on record for Queensland, New South Wales, and the Murray-Darling Basin (Bureau of Meteorology 2011a) at that time. The flood mitigation dams in the region, Somerset Dam and Wivenhoe Dam, had to be operated for flood mitigation purposes during October 2010, which was the first occasion since February 2001 that Wivenhoe Dam had been called into action due to the Millennium Drought. The wet October was followed by a very dry November which, in turn, was followed by the wettest December on record for Brisbane. Somerset Dam and Wivenhoe Dam were again pressed into action on three separate occasions during December 2010. The resultant releases ensured that only minor flooding resulted in the Lower Brisbane River during these events. However, on the 5th of January 2011, another rainfall event started to unfold across the catchments of the dams. By the 10th of January 2011, an upper-level low combined with a humid easterly flow to bring very heavy rainfall and flash flooding to southeast Queensland and northeast New South Wales. The heaviest falls were in the areas north and west of Brisbane, with three-day totals exceeding 200 mm over most of the Brisbane River catchment. This rainfall event resulted in a flood of record in the Upper Brisbane River and Upper Lockyer Creek catchments that sadly resulted in a substantial loss of life in Toowoomba and the Lockyer Valley, and which required record releases from Wivenhoe Dam. The resultant downstream flooding saw some 14,000 properties impacted, principally in the Lockyer Valley Regional Council, Somerset Regional Council, Brisbane City Council, and Ipswich City Council local government regions. Flood damage was estimated to be around $2.53 billion. This paper discusses the event as it unfolded and the subsequent judicial inquiries, engineering reviews, and legal proceedings that resulted from the consequences of the operation of Somerset Dam and Wivenhoe Dam. [ABSTRACT FROM AUTHOR]

In their recent paper, Williams et al. (2022) evaluated salinity management in the Murray-Darling Basin (MDB) as 'unsustainable', and a risk to water availability and quality in the Basin. However, this evaluation was weakened first by a failure to analyse the Basin salinity strategies of the last thirty-five years, noting that these have led to Basin salinity target being met since 2010; and second to not providing Basin-specific data to support their evaluation. Contrary to Williams et al. comments, existing evidence indicates that infrastructure intended to improve water use efficiency (e.g. salt leaching, salt disposal basins) will generally reduce stream salinity. The requirement for a leaching efficiency means that there is a lower limit to water use efficiency improvements, but this is unlikely itself to be a major risk. We agree that the changes that have occurred over the last twenty years would warrant a review of salt storage options in the MDB that better matches future needs. [ABSTRACT FROM AUTHOR]

In this paper, the oral and dermal health risks of potentially toxic elements in water samples collected from Ojoto area in southeast Nigeria were studied using HHRISK code and water quality index. The water samples were analysed for physicochemical parameters based on standard guidelines. Average concentration of the potentially toxic elements in the water was in the order: Pb2+ > Fe2+ > Zn2+ > Ni2+ > Cr3+. To assess the level of surface and groundwater pollution, water quality index was calculated. Results of the water quality index suggest that 11% of the water samples are in good condition; 25% have poor quality, 3% have very poor quality, and 53% have quality that is unfit for human consumption. The HHRISK code was used to quantify the health risks associated with the use of the water resources. Results revealed that most of the water samples expose their users to carcinogenic and non-carcinogenic health risks. Cumulative non-carcinogenic risk scores (for both children and adults) and the majority of cumulative carcinogenic risk values were found to be above regulatory limits. The adult population is exposed to lower non-carcinogenic and carcinogenic health risks, implying that children are more vulnerable. The water supplies are of substandard quality and could cause serious health issues when ingested than when used for bathing and washing purposes. Simple linear regression models showed positive agreement between the results of the WQI and HHRISK code. To safeguard the water resources, avoid additional water contamination, and reduce public health hazards associated with poor water quality, strategic mitigation strategies are recommended. [ABSTRACT FROM AUTHOR]

The paper proposes a novel methodology to locate and quantify entrapped air pockets created during pipe-filling events often found in intermittent water supply systems. Different filling conditions were tested in an experimental pipe with a high point. Measurements were taken and video recordings were carried out to assess air pocket volumes for different air release conditions at the downstream end of the pipe. The stochastic nature of air pocket creation resulted in varying air volumes. A new numerical model capable of simulating the air pocket creation, dragging and entrainment has been proposed. The new model, AirSWMM, was implemented as an extension of the Stormwater Management Model (SWMM) with stochasticity of air pocket formation reproduced by simulations with different air entrainment rates. The obtained numerical results show that the proposed model, even though based on a single-phase one-dimensional flow, can accurately locate and approximately quantify the entrapped air pocket volumes. [ABSTRACT FROM AUTHOR]

Given the future uncertainties regarding the availability of irrigation water in the Bengal Delta, planned water reuse in agriculture is a viable alternative. Using scenario planning, this paper depicted technological solutions to ensure the safe reuse of urban water in agriculture. A systematic literature review and expert interviews were conducted to identify the factors for appropriate technology selection. Results indicated that local conditions, resource recovery, energy consumption, initial investment and land availability are the notable factors for technology selection. Taking economic growth and demand for irrigation water, centralized (activated sludge) and decentralized technological (pond-based) solutions are envisioned to facilitate reuse. [ABSTRACT FROM AUTHOR]

The Lao People's Democratic Republic (Lao PDR) is located in the Greater Mckong sub-region in East Asia, neighbouring with China, Cambodia, Myanmar, Thailand and Vietnam, with a land area of 236,800 square kilometres, and an average population density of 22 persons per square kilometre. The population of Lao PDR is 5.5 million with 49 ethnic groups. Most of the population is located in rural areas, with a significant number of the neediest villages in remote localities. In the past decade, there have been many positive developments in the rural water supply and sanitation (RWSS) sector. Despite improved coverage in latrine and water supply services, health remains a serious problem. The improved services were often not sustained or poorly maintained, while hygiene received inadequate attention. In Lao PDR, as in many other countries, the provision of a safe and reliable water supply and appropriate sanitation services, based on sustainable approaches, therefore, remains a challenge. This paper will provide an overview of the Lao PDR's RWSS Sector. Special emphasis is placed on actual field level application of informed choices for water supply, sanitation and hygiene awareness. [ABSTRACT FROM AUTHOR]

This paper uses a participatory approach to assess the level of understanding of the Water-Energy-Climate Change (WECC) nexus in South Africa. The aim is to initiate the development of well-coordinated, systematic, and holistic strategies to promote efficient management of the WECC and its implications in the country. The assessment follows the learnings from the Integrated Water Resource Management framework, which promotes a participatory approach in the administration of water resources. The paper reveals that, despite the reasonable level of understanding of WECC, it is still insufficient to promote an integrated approach mainly in policy development and planning for water and energy resources while averting climate impacts. This is exacerbated by limited coordination and consultation among various stakeholders. However, minimal efforts to promote an integrated approach in the management of the WECC sectors is observed. Despite these developments, the paper proposes that the participatory approach is feasible to promote holistic strategies and collaboration among stakeholders mandated to manage WECC sectors. Until approaches such as this are adopted within the institutional framework, this nexus will continue to impede the country's sustainable development endeavours. [ABSTRACT FROM AUTHOR]

In this paper, we describe a numerical model for unsteady stratified flow without mixing at the interface (halocline), which was applied for the calculation of salinization in the Neretva River (Croatia) i.e. the first line of penetration. The mathematical model is based on the principles of conservation of mass and momentum. Since, the set of equations does not have analytical solution it is solved numerically, e.g. through finite element method (FEM). Computed variables are water discharges and elevations for each layer separately in each point of finite element mesh. Calibration of the model is based on in-situ measurements. The most important factor for salt water intrusion in an estuary is the fresh water discharge. In the Neretva estuary, salt water was found in Metkovic (22 km from the sea) for freshwater flows of less than 180 m3/s, while for flows greater than 500 m3/s salt water was completely extruded from the riverbed. The plan is to build a mobile barrier (gate) in the Neretva River to protect it against sea water penetration. Additionally, upstream of the barrier, fresh water would be provided in the riverbed that could be primarily used for irrigation. The same numerical model has been also successfully applied to the estuary of the Jadro River, a small river near Split. Since the model is general, it can be applied on any river mouth with stratified conditions. The projections of sea level changes in the Adriatic Sea shows increase of a few decimeters in 21st century. Generally, rising sea levels will increase salt water pressure on the coast, estuaries, water resources, aquifers and farmland. Therefore, the management of estuaries will require even greater engagement of experts from different areas to successfully deal with future difficulties. [ABSTRACT FROM AUTHOR]

This paper presents the results of a quasi-experimental study using information collected through a survey conducted in peri-urban areas of metropolitan Lima and applied to households residing close to and on both sides of the geographic boundary of piped water supply. We find that access to piped water was associated with a reduction in the probability of contracting COVID-19. Furthermore, the results suggest that a minimum consumption level must be guaranteed to lower infection probability. These results highlight the need for investment in infrastructure to close access gaps and the importance of ensuring quality and affordable services for the population. [ABSTRACT FROM AUTHOR]

Water is one of the most contended resources on the planet. The need and the un-ubiquitous nature of the resource is a reality faced by the Bally-Jagachha block in Howrah, West Bengal. Here, the available water sources are tube-well and piped water, both having Water Quality Indices of more than 300 and 200, respectively. This indicates that drinking water is unpalatable, making people vulnerable to diseases. Additionally, as is evident through the Water Poverty map, inaccessibility is an expensive, debilitating problem, as people have to travel twice in 4-7 min to and from the water source to collect it and then again spend more to filter the same. The Ridit scores thus state that people are overcome by water woes in supply, availability, consumption, quality, demand, etc., but yet have no alternatives like rainwater harvesting (RWH), despite people's acceptance to it. Thus this paper attempts to collate all the problems regarding water and suggest ways by which the Gram Panchayats here can safely implement RWH and resolve the situation for the future. [ABSTRACT FROM AUTHOR]

Intermittent Water Supply (IWS) is characterised as drinking water distribution systems that are supplied with water for less than 24 hours/day on average. The filling transition from non-supply to pressurised supply is a period of hydraulic instability that negatively impacts water quality, deteriorates infrastructure integrity and intensifies social inequalities. Understanding the factors contributing to the severity of impact from filling is vital to develop effective management strategies. This paper investigates the hydraulic phenomena induced during the short-term IWS filling period and how this behaviour can be exacerbated by elevation and other hydraulic system factors, such as velocity and pressure. Controlled laboratory experiments conducted in the UK and field studies performed in operational networks across South Africa are presented. Results demonstrate the crucial role elevation plays in the network response during the filling transition, emphasising the need for greater consideration of elevation in IWS and well-maintained air relief valves in strategic locations. [ABSTRACT FROM AUTHOR]

Urban wetlands and waterways are vital for a city's defence, transport, water supply, environment, and culture. However, overuse, environmental stress, and management issues degenerate their condition, particularly in countries with high populations, limited funds, and improper infrastructure. A megacity in eastern India, Kolkata is blessed with two significant rivers, an efficient canal system, and a wetland of international prominence. Unfortunately, various factors disturbed their natural flow, slaying them with pollution, sedimentation, and reduced aquatic biodiversity, thus losing their socio-cultural importance. The paper analyses the interactions and inter-relationships between the city's main waterways in a comprehensive environmental, socio-economic, and cultural context. It also presents a prescriptive framework for the eco-restoration and management of the city's waterways. The target-driven strategies comprise the spatio-physical components of land, land-water interface, and water for physical, ecological, and hydro-morphological restoration of these waterways as an urgent step towards urban sustainability and resilience. [ABSTRACT FROM AUTHOR]

This paper aims to evaluate the hydrologic impacts of urban expansion in a peri-urban catchment that drains into a reservoir of the drinking water supply system of Belo Horizonte Metropolitan Region in Brazil. Despite the metropolitan interest and efforts in protecting the catchment, a recent change in zoning ordinances allowed urban expansion in the area. To evaluate the potential hydrological impacts of this land use regulation change, scenarios of urban expansion were conceived and simulated in the model Dinamica EGO. The Storm Water Management Model (SWMM) was employed to assess potential hydrological impacts of land use change projections. Observed precipitation and water level data of the reservoir were used to calibrate and validate the hydrological model. Results confirm the impacts on several catchment hydrological processes following the progressive urban expansion in the area, particularly on volumes of infiltration, groundwater flow and runoff, increasing peak flows and flooding downstream the reservoir. [ABSTRACT FROM AUTHOR]

The quality of agriculture depends on the quality of the yield, which is usually obtained through the well-being of the crop. The quality of any crop depends on the minerals in the soil, the type of soil, the location, and the seasons. The crop yield depends on soil fertility, availability of water, climate, and disease prevention. Although this information is prevailing in plenty among the expert farmers, the means of abducting the information to the future generation has not been much promoted. Hence, the knowledge disseminated regarding agriculture becomes scarce, affecting the entire agricultural process. Given these facts, a single source, strong knowledge management system is proposed to be designed. The system aims to embrace the different kinds of knowledge associated with agriculture and attempt to obtain a single source of agro information that is very much usable and reusable to the users. To ensure the maximum level of reusability, the knowledge of the domain needs to be modeled and represented in a way that is scalable and flexible. One of the knowledge representation techniques that emphasizes on reusability and scalability is ontology. Thus, this paper attempts to design an ontology-based agro knowledge management system. A rule base is constructed to improve the expressiveness of the knowledge. An incremental mining approach is adopted to extract the knowledge from multiple ontology. To understand better to aid decision-making, a visualization task is carried out. A multi ontology-based knowledge mining model is attempted in this research to provide better insight regarding agro knowledge. [ABSTRACT FROM AUTHOR]

This paper reviews South Africa’s efforts to realise the right to water from a welfare policy perspective. ‘Free basic water’ (FBW), initially a water sector policy, was later recognised to be part of the country’s wider social protection framework. However, while the principle of providing poor households with free basic services has been sustained, FBW has not provided reliable access for many of its intended beneficiaries. Analysis of the policy, implementation and performance of the programme identifies unresolved policy tensions between welfare objectives and other government priorities, reflected in the choice of targeted rather than universal welfare strategies. It is concluded that these welfare policy tensions have weakened the outcomes of the free basic water policy which are more usually blamed on operational and institutional failures. While the FBW principle is generally accepted, practical performance is often weak. [ABSTRACT FROM AUTHOR]

The article offers information on the Water International Best Paper Awards. It mentions that a short list of candidate papers is prepared by the editors of "Water International" and examined by the International Water Resources Association (IWRA) publications committee. It highlights the 2012 Best Paper Awardee "Virtual water hegemony: the role of agribusiness in global water governance" by Suvi Sojamo, Martin Keulertz, Jeroen Warner, and John Anthony Allan.

Despite an open border, shared culture, religious ties and strong people-to-people connectivity, governance of transboundary water resources has often led to diplomatic conflicts between India and Nepal. It is not unusual for hydro-development projects between the two to run into delays or opposition, despite great domestic need for water and electricity in both countries. Using fieldwork in Delhi and Kathmandu, this paper illustrates the factors that impede cooperation between the two sides on shared rivers and how the inadequacies of international water laws manifest themselves in bilateral negotiations on water governance. The paper locates the benefit-sharing framework in international water law using the case studies of the Pancheshwar and the SaptaKoshi–SunKoshi Project in the Mahakali and Koshi basins. [ABSTRACT FROM AUTHOR]

This paper presents a statistical tool of uncertain significance test that uses uncertainty theory to test whether certain prespecified regression coefficients can be regarded as zero. A numerical example is given to illustrate how to test the significance of regression coefficients in an uncertain regression model. In order to compare uncertain significance test with stochastic significance test, both of these significance testing approaches are applied in studying the relationship between GDP and four indicators, including urban population scale, volume of foreign trade, fiscal expenditure, and water resource. The results show that uncertain significance test is more appropriate than stochastic significance test. [ABSTRACT FROM AUTHOR]

How water resources are defined, both conceptually and legally, is central to their efficient and equitable allocation. With climate change introducing significant uncertainties to water resources management, flexible allocation frameworks are needed that can adapt to changing conditions. This paper explores options for climate-adaptive water allocation in Australia's Murray Darling Basin. The 2026 revision of the Basin Plan may provide significant opportunities for proactive climate risk mitigation, but this depends on rigorous evaluation of policy options. The Water Act requires that the Plan's revisions use the best available science to inform strategies that minimise the impact of climate risks. The Act also enables the use of ratios and formulas as alternatives to using long-term averages as the basis of the Plan. However, there have been limited investigations into using these alternatives. Achieving more adaptive policies depends on rigorously assessing climate risk management options. Given the far-reaching consequences of climate change, rigorous investigations are needed into reforms to the established approaches to water resources planning and to existing water entitlements and allocation regimes. At minimum, this means reassessing the total resource pool and all subsidiary targets and investigating allocation frameworks that equitably share risks between extractive users and the environment. [ABSTRACT FROM AUTHOR]

Water banking in aquifers is an internationally proven, low-cost solution that could improve drought resilience across the Murray Darling Basin. While significant potential for water banking through managed aquifer recharge (MAR) or conjunctive use of surface and groundwater resources has been identified in the Murray Darling Basin Plan, there is a need to establish clear policy and institutional foundations to incentivise adoption. To provide appropriate incentives for schemes, the legal status of rights to recharge, store and recover water, and the rules and costs which apply to groundwater extraction need to be clear and transparent. This paper aims to clarify principles and frameworks to secure water rights for recharge, storage, and recovery within the sustainable limits of water resources currently set under law. The current Basin Plan supports water banking, and banking would be complementary with objective and outcomes sought by future Basin Plans. Existing water accounting systems would need to accommodate this new capacity. Institutional arrangements and financial structures of water banking in the USA provide guidance for Australia. Demonstration sites would enable concurrent policy development and institutional set-up and provide critical experience to serve as models for wider adoption as part of future Murray Darling Basin plans. [ABSTRACT FROM AUTHOR]

The transition from rural to urban spurred by population growth and housing densification has implications for the planning of service provisions, not least domestic water supplies. The objective of this paper is to document the status of domestic water access and examine existing options for domestic water provision along the rural–urban transition. The study employs a combination of research methods in both data collection and analysis. Given the dual character (rural–urban) of the emerging urban centres, there is limited distinction in the domestic water services provided since they tend to be in between the two, in a state of transition. [ABSTRACT FROM AUTHOR]

Surrounded by four of the five Great Lakes, Michigan is characterized by water. Historically, much of the state's industry was situated along the water, often preventing public access to waterfronts and negatively impacting the quality of water resources. Economic shifts, paired with a growing interest in revitalizing waterfronts, have led many Michigan communities to invest in water-based restoration projects. This paper investigates the experiences and perceptions of key stakeholders in four waterfront towns where water restoration projects have been implemented as communities shift toward recreation and tourism-based economies. Twenty interviews were conducted with key stakeholders to explore the factors that lead to successful implementation of water restoration and in turn, how these projects impact community vibrancy. Results suggest that community vibrancy related to water restoration can be characterized by a series of reinforcing feedback loops between local leadership, access to water resources, socio-economic and environmental opportunities, and relationships with water. [ABSTRACT FROM AUTHOR]

One of the pivotal decision-making tools for sustainable management of water resources for various uses is accurate prediction of water quality. In the present paper, multiple linear regression (MLR), radial basis function neural network (RBF-NN), and multilayer perceptron neural network (MLP-NN) models were developed for the monitoring and management of irrigation water quality (IWQ) in Ojoto area, southeastern Nigeria. This paper is the first to integrate and simultaneously implement these predictive methods for the modeling of seven IWQ indices. Moreover, two modeling scenarios were considered. Scenario 1 represents predictions that utilized the specific physicochemical parameters for calculating the IWQ indices as input variables while Scenario 2 represents predictions that utilized pH, EC, Na+, K+, Mg2+, Ca2+, Cl-, SO42-, and HCO3- as inputs. In terms of salinity hazard, most of the water resources are unsuitable/poor for irrigation. However, in terms of carbonate and bicarbonate impact and magnesium hazard, majority of the samples have good and excellent IWQ. Seven agglomerative Q-mode dendrograms spatiotemporally classified the water resources based on the IWQ indices. Model validation metrics showed that the MLR, RBF-NN, and MLP-NN models developed in the two scenarios performed well in both scenarios, with minor variations. [ABSTRACT FROM AUTHOR]

This paper argues that enhancing the water conservation behavior of the urban population would provide an alternative solution by demand curtailment and behavior change, rather than traditional methods of increasing water supply. A structured, evidence-based approach to identify relevant research studies has been instrumental in this research. The paper provides a systematic review of 35 papers, narrowed down from 3089 papers, which have converged towards an integrated approach to water conservation behavior. The significant factors of water conservation behavior were classified under four broad themes: psychological, situational, demographic, and contextual. The review showed that the situational and contextual variables were understudied among these factors. Further, this study identifies research gaps in the models of water conservation behavior and highlights the need for future work. The issue of sustainability of water through a cogent argument based upon behavioral studies in water conservation has been carried out. Evidence-based systematic review for a comprehensive assessment of current literatures of water conservation behavior. Identification of four variable cluster themes: psychological, demographic, situational, and contextual variables. Provides insight into major theories used to predict water conservation behavior. Represents a knowledge map of theories and models to guide future researchers. Situational and contextual variables are understudied, with significant evaluation and population gap existing between developed and developing nations. Theoretical void exists in specific behavior theories, such as Identity Theory, in predicting water conservation behavior. Authors elaborated holistic model to predict water conservation behavior along with mediating effects of situational and contextual variables. Addressing issues of sustainability through cogent arguments in behavioral studies for water conservation. [ABSTRACT FROM AUTHOR]

Aspiring to India's COP26 pledge of attaining 500 gigawatts of non-fossil energy capacity by 2030 will entail nothing short of a colossal transformation of rural spaces. Solar park development has already disrupted the lives and livelihoods of marginalized peasants through land dispossession, uneven provisioning of electricity and water resources, dislocation of fuelwood and grazing access, and the diminution of labor opportunities. However, it remains unclear how affected peasants internalize the burdens of decarbonization. The aim of the paper is to address the following questions: How are the geographies of solar energy transitions embodied? How do dispossessed peasants respond affectively? Drawing on feminist political ecology literature and fieldwork that included household surveys and semi-structured interviews, the author finds that the dispossessed embody a range of affective responses, including emotional geographies and embodied resistance, that enable or constrain the place-making of equitable alternative sites of solar energy generation. The author concludes that as India rapidly erects large-scale solar infrastructures—indisputably imperative efforts to confront the climate crisis—the embodiment of injustices suffered by the dispossessed will haunt low-carbon futures. [ABSTRACT FROM AUTHOR]

The goal of this study is to perform an analysis of the performance of radiant cooling panels using experimental testing and transient system simulation software. The effect of design parameters such as water supply temperature and water flow rate on thermal comfort and energy efficiency is studied. Two control schemes are used in the study in which either the water flow rate or the water temperature difference between the inlet and outlet of radiant panels is held constant. This paper demonstrates the modeling and validation of a radiant cooling system in TRNSYS and uses this model to study the performance of the system during the cooling season in Egypt. It was found that the lower water temperature of 16 °C was found to be suitable for achieving thermal comfort. The constant water flow rate control scheme showed a 5% less unmet hours percentage than the constant water temperature difference, but the latter used 38% less electrical energy. A constant water temperature difference control scheme can achieve better thermal comfort with an unmet hours percentage down to 12.5% by coupling the system with a dehumidification device. [ABSTRACT FROM AUTHOR]

This paper shows that the evolution of French water governance since the 1960s is globally consistent with the OECD Principles on Water Governance. It covers simultaneously what concerns resources, services and eventually policies that bridge both types, per groups of governance principles. The paper illustrates that, beyond this overall positive assessment, a lot of shortcomings and weaknesses and therefore of potential improvements can be identified. It proposes a preliminary reflection about the impact of governance changes and about indicators needed to measure these impacts. [ABSTRACT FROM AUTHOR]

Acknowledging the overreaching importance of WHO guidelines of frequent handwashing with soap and water in battling COVID-19, this paper unravels the state of water supply in Indian cities and examines the challenges of conventional water policy and governance assumptions amid the COVID-19 crisis in India. Urban citizens, especially living in the slums, very often need to rush to access the water sources, making social distancing practically impossible. Apart from increasing public investment, this paper argues for rethinking the existing framework of water supply through institutional reforms focusing on decentralisation, community participation, and adoption of integrated water resource management policies. [ABSTRACT FROM AUTHOR]

This review paper focuses on the question of what will happen to the future water resource system of Grand Renaissance Dam of Ethiopia based on the projected hydrology of the Upper Blue Nile River basin. For this, the hydrological extremes, the baseline hydrological trends, and projected hydrological extremes of the Upper Blue Nile River basin were reviewed from various published and unpublished sources. Changes in the future hydrology of the Upper Blue Nile River basin due to climate change or any other natural or manmade modification of the river basin deserve concerted attention in the future water resources system of the Grand Renaissance Dam of Ethiopia, because the water resources of the dam mainly depend on the water potential nature of the Upper Blue Nile River basin. [ABSTRACT FROM AUTHOR]

Risks to shared water resources in the Murray–Darling Basin are reviewed after the report by CSIRO on the same topic in 2006. CSIRO outlined six major risks to shared water resources in the Basin. Herein, six groups of researchers have reviewed the risks of climate change, forest growth, groundwater, water infrastructure, water quality, and governance. These reviews bring an updated understanding of risk assessment and management that can contribute to the forthcoming reviews of the Water Act and Basin Plan in 2024–26. Drawing on these six papers, the authors synthesise knowledge of the risks to shared water resources and identify policy and management options and information gaps. We find that few risk factors have decreased in significance. Most risks remain and new risks are identified. Water managers must plan for a significant decrease in water availability and governments need to actively manage these risks under conditions of increasing uncertainty. [ABSTRACT FROM AUTHOR]

Climate change introduces greater complexity to water resources planning, requiring techniques suited to increased future uncertainties. In Australia's Murray Darling Basin, governments formally recognised climate risk in 2002 and legislated science-based climate risk assessment in 2007. Since then, research has helped clarify the significance of climate change impacts on catchments, riverine ecosystems and water resources. This paper offers a review of climate risk assessments undertaken over the past two decades and outlines research needs and policy options while noting there are no simple solutions given the systemic nature of climate risks. Water resource planning and climate risk assessment need to handle non-stationarity and post-natural Anthropocene conditions. These methods should integrate biophysical and socio-economic modelling, increase stakeholder participation in developing and testing policy options and codify standards and procedures for transparency. [ABSTRACT FROM AUTHOR]

The Murray-Darling River system is perhaps Australia's most important, with significant social, cultural and environmental values including 16 Ramsar listed wetlands. The MDB is home to 2.6 million people and produces about $24 billion worth in agricultural production each year (about one-third of total value for Australia). Hydrologic issues, typified by water availability and quality, have existed for many years, peaking during the Millennium drought from 1997 to 2010. Competing interests (i.e. irrigation, tourism, environmental heath), and the declining flows and water quality during droughts, led governments and water management agencies to consider the risks to water resources in the system in the early-mid 2000s. This paper reviews changes to risks associated with forest dynamics, as identified by - afforestation and bushfire – and considers new issues that have emerged since that analysis. It was found that the potential impacts of bushfire on stream flows were over-estimated in past studies, and that a planned significant afforestation expansion into agricultural and grazing land that was projected to reduce stream flows did not occur. While these two risks now do not seem likely to have significant future impacts on flows, or consequent effects on downstream users, the interaction of elevated CO2 and increasing temperatures on vegetation functioning and subsequent hydrologic consequences at catchment scale require further research and analysis. Reduced rainfall and increased temperatures under future climate change are likely to have an impact on inputs and flows. Uncertainties in how these changes, and feedbacks between climate, drought, more frequent fire and vegetation responses, impact on system hydrology also require further investigation. [ABSTRACT FROM AUTHOR]

Rapid climate change is impacting water resources in Afghanistan. The consequences are poorly known. Suitable mitigation and adaptation strategies have not been developed. Thus, this paper summarizes current status of knowledge in relation to Afghan water resources. More than 130 scientific articles, reports and data sources are synthesized to review the potential impacts of climate change on the cryosphere, streamflow, groundwater and hydrological extremes. The available information suggests that Afghanistan is currently witnessing significant increases in temperature, less so precipitation. There is evidence of shifts in the intra-annual distribution of streamflow, with reduced summer flows in non-glaciated basins and increased winter and spring streamflow. However, in the short-term there will be an increase in summer ice melt in glaciated basins, a "glacial subsidy", which sustains summer streamflow, despite reduced snow accumulation. The future prognosis for water resources is likely to be more serious when this glacier subsidy ends. [ABSTRACT FROM AUTHOR]

This paper presents the results of the analysis of initiatives taken by selected European Union member states concerning enhanced water protection with respect to ownership and management of water resources and water distribution systems. Two of the countries studied have recently enacted their constitutional protection of water (Slovakia and Slovenia), one country is planning to reinforce the protection of water in its constitution (Czech Republic) and one state found the constitutional protection of water unnecessary (Finland). Whereas the reasons for (not) protecting water at the constitutional level vary widely, the common denominator is a strong support for protecting water as resource. [ABSTRACT FROM AUTHOR]

The planning and management of water resources are becoming more and more important, and the forecast of water demand as the prerequisite and foundation of the entire planning has become a very important task in agricultural development. This paper combines the particle swarm algorithm to construct the agricultural water resource demand forecasting model, analyzes the shortcomings of the traditional particle swarm algorithm, and makes appropriate improvements to the quantum particle swarm algorithm. Moreover, this paper constructs the functional structure of the agricultural water resource demand forecast model based on the forecast demand of water resources, and analyzes the application process of the particle swarm algorithm in the system of this paper. After the model is constructed, the performance of the model is verified, and the simulation test is designed to evaluate the effect of system forecast with actual data. At the same time, this paper uses the model constructed in this paper to analyze the factors affecting water resources forecast demand. From the results of the experimental analysis, it can be seen that the model constructed in this paper is more effective in the forecast of water resources demand. [ABSTRACT FROM AUTHOR]

The paper examines relational capital in form of trust and connectedness as key attributes of social interactions among social actors involved in adaptive governance processes. The research is a longitudinal case study of efforts for restoring the ecological integrity of the Kafue Flats for the period 1977–2004. The paper reveals low relational capital between local communities and Zambia Electricity Supply Corporation (ZESCO) due to poor information sharing and dialogue regarding the operations of the dams. In addition, negative connectedness is attributed to differences in the timing of water resource needs. On the other hand, high relational capital between ZESCO and commercial irrigation users due to the exchange of information and shared understanding of the resource system with positive connectedness is attributed to similarity in water resource needs in terms of timing and organizational capacity. In view of this, it is argued that adaptive governance requires collaborative relationships characterized by high relational capital and positive connectedness. [ABSTRACT FROM AUTHOR]

This paper investigates emerging models of governance for shared water resources in decentralized urban regions in Indonesia and draws on a case of inter-local government collaboration for shared water resources in Cirebon region, Indonesia. The paper points to cooperation practice involving a mixed-model of governance for sharing water. by identifying a series of requirements for mixed governance. This model suits well not only because of the regional nature of water resource management in general, but also because such a model is likely to strengthen trust, increase transparency, and provide more equal positions among regions or stakeholders involved. Crucially, this model tends to decrease problematic levels of local autonomy and inter-local rivalry, which currently appears as a major challenge for shared water resource cooperation attempts in the decentralizing contexts of Indonesia and beyond. [ABSTRACT FROM AUTHOR]

Water supply has been a chronic challenge in Istanbul since its foundation. Authorities have sought alternative methods since the Roman and Byzantine periods. Cisterns, channels and wells surveyed in urban heritage sites in Istanbul provide evidence of rainwater harvesting (RWH) as a working solution in the past. However, RWH systems have only been utilized in contemporary plans and policies very recently, particularly since the climate change crisis entered the political agenda in Turkey. Taking this as a point of departure, this paper investigates the challenges of widespread implementation of RWH systems in Istanbul through a participatory inquiry with water management actors. Challenges and needs are explored through a set of in-depth interviews and participatory workshops with representatives from water management institutions. The findings reveal that current challenges are related to planning and development, legislation and governance, financing, society, infrastructure, installation and operation of systems. The potential solution is the establishment of a governance mechanism that enables collective action among relevant actors. [ABSTRACT FROM AUTHOR]

Globally irrigation subsidies are utilized to boost modernization and increase irrigation efficiency. This paper examines the effects of the irrigation subsidy programme in Chile by reviewing 32 years of allocations and exploring the drivers and consequences of the subsidy programme with a clear market approach based on competition and a state risk-free strategy. Our analysis reveals that, despite the flexibility in targeting, the results indicate an uneven allocation to smallholders' detriment, a state inability to identify farmers' needs, market concentration and a bias towards agricultural expansion. As long as the programme remains unaltered, it will threaten agriculture and water resources' sustainability. [ABSTRACT FROM AUTHOR]