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This report reviews China's water scarcity situation, assesses the policy and institutional requirements for addressing it, and recommends key areas for strengthening and reform. It is a synthesis of the main findings and recommendations from analytical work and case studies prepared under the World Bank Analytical and Advisory Assistance (AAA) program entitled 'Addressing China's Water Scarcity: from Analysis to Action.' These studies focus on several strategically important thematic areas for China where additional research was needed, as identified by the research team and advisory group based on a review of pressing issues. These areas are governance, water rights, pricing, ecological compensation, pollution control, and emergency response. The approach has been to evaluate Chinese and international experience to identify policy and institutional factors that have proven effective in promoting the adoption of water conservation and pollution reduction technologies. The research was based on literature reviews, qualitative and quantitative policy analyses, household surveys, field trips, and case studies to develop feasible recommendations for a plan of action based on realities on the ground.

Water lies at the intersection of landscape and infrastructure, crossing between visible and invisible domains of urban space, in the tanks and buckets of the global South and the vast subterranean technological networks of the global North. In this book, Matthew Gandy considers the cultural and material significance of water through the experiences of six cities: Paris, Berlin, Lagos, Mumbai, Los Angeles, and London. Tracing the evolving relationships among modernity, nature, and the urban imagination, from different vantage points and through different periods, Gandy uses water as a lens through which to observe both the ambiguities and the limits of nature as conventionally understood. Gandy begins with the Parisian sewers of the nineteenth century, captured in the photographs of Nadar, and the reconstruction of subterranean Paris. He moves on to Weimar-era Berlin and its protection of public access to lakes for swimming, the culmination of efforts to reconnect the city with nature. He considers the threat of malaria in Lagos, where changing geopolitical circumstances led to large-scale swamp drainage in the 1940s. He shows how the dysfunctional water infrastructure of Mumbai offers a vivid expression of persistent social inequality in a postcolonial city. He explores the incongruous concrete landscapes of the Los Angeles River. Finally, Gandy uses the fictional scenario of a partially submerged London as the starting point for an investigation of the actual hydrological threats facing that city.

There are quite a lot of studies from global and regional perspectives that touch on sustainable water use in agriculture. As a result, we explored Biblioshiny to review the scholarly research on the sustainable use of water in agriculture. Using data analysis and visualization technique of 4106 documents authored by 12,686 scholars in 724 journals published between 1990 and 2022, we find that research on this topic gained momentum in 2007 and has followed a steady increase with an annual growth rate of ~16.12%. The results of the co-occurrence network mappings highlight five trendy topics in research on sustainable water use in agriculture, which were categorized based on five (5) Word Minimum Frequency and Number of Words per Year. These topics include the AquaCrop model, Agroforestry, Biochar, No-tillage, and Diet. While renowned journals such as Agricultural Water Management, followed by Sustainability and Water, have taken leading roles in pushing research on sustainable water use in agriculture. Regarding the impact of perspective, in terms of institutional affiliation and countries, we found that the top three most prominent affiliated institutions producing publications allied to research on the sustainable use of water in agriculture are Northwest A&F University in Xianyang, China, China Agricultural University, and Hohai University in Nanjing, China, while the top three countries are China, the USA, and Australia, accounting for 45,039 (43.4%) of the total 103,900 global citations. The study’s findings can be helpful to scholars in presenting an overview of the literature on the sustainable use of water in agriculture.

Over the past two decades, climate change and climatic variability have received significant attention from the scientific community. The present study investigates the impact of future climate change on irrigation water requirements in the coastal districts of Odisha, Eastern India, specifically within the Phulnakhara distributary’s command area of the main Puri canal system. Field investigations were conducted during the kharif and rabi seasons of 2019–2020 and 2020–2021. The study offers a new perspective involving a future climate data-driven model with water requirements of RCP 4.5 for this canal command area, and after integrating this with the optimal cropping area, the optimal future irrigation water needs for the kharif and rabi seasons were determined. The study focused on assessing future irrigation water demands under changing climatic conditions, with an emphasis on the conjunctive use of surface and groundwater resources. Projections indicate that peak irrigation demand will occur in the kharif season of 2042–2043 and the rabi season of 2044–2045. Furthermore, a significant decline in groundwater levels is anticipated, ranging from 1.23 to 1.42 m below ground level (BGL) during the kharif season and from 1.46 to 1.64 m BGL during the rabi season, over the next 30 years (2021–2022 to 2050–2051). The most pronounced groundwater table decline is projected for the years 2042–2043 (kharif) and 2044–2045 (rabi), highlighting the need for sustainable water resource management strategies in the region. Based on this study, integrating the optimal crop area with future irrigation water needs will result in groundwater table fluctuations under the permissible limit.

The past decade has witnessed a major global shift in thinking about water, including the role that water infrastructure plays in sustainable development. This rethinking aims to better balance the social, economic, and environmental performance aspects in the development and management of large dams. Additionally, it reinforces efforts to combat poverty by ensuring more equitable access to water and energy services. There is also growing appreciation of how broad-based policy reforms come into play and influence decisions around issues related to dams. Apart from democratization of the development process itself, it is increasingly recognized that infrastructure strategies must complement strategies for water, environment, and energy security; they must also address emerging concerns to reduce vulnerability in water resource systems due to the probability of climate change. Communication comes to the forefront in modern approaches to dam planning and management in several respects. Communication is central to multi-stakeholder dialogue and partnerships at all levels needed to achieve sustainability and governance reform in water resource management and infrastructure provision. At the same time, communication drives the advocacy to mobilize political will and public support for beneficial change and continuous improvement in practices. This case study emphasizes that it is important not only to mobilize all opportunities to reconcile water demand and supply in river basins facing increasing levels of water stress, but also to effectively integrate governance and anticorruption reforms and sustainability improvements into all stages of the planning and project cycle-adding value for all stakeholders, not just for some of them.

Water resources are not only the essence of human life, but also an important prerequisite which ensures the economic and social development of a country or city. Due to chronically global overexploitation, water crises have started to emerge. China, for example, is experiencing acute water scarcity. Even its capital, Beijing, faces enormous challenges in the sustainable use of water resources. Combining the compound system of social, economic, and ecological environments with the current situation in Beijing, this study established an evaluation index system. To determine the weight, the rough set theory was adopted in the index layer, fuzzy theory was employed in the rule layer and set pair analysis method, and attribute recognition theory was used as evaluation methods. In order to verify the accuracy of the results, the weights of indices were taken into the evaluation methods mentioned above after being calculated by using the analytic hierarchy process (AHP) and entropy weight method, respectively. The matter-element model was used to evaluate the system and the Spearman correlation coefficient method aimed to compare all the results of the evaluation. The results indicated that water use efficiency and water management have been increasingly improved in Beijing on a yearly basis. Additionally, the results of the Spearman correlation coefficient method showed that the method of weight determination based on rough set and fuzzy theory is feasible in the evaluation of sustainable use of water resources.

This book advances the understanding and integration in operational terms of environmental flows (water allocation) into integrated water resources management (IWRM). Based on an in-depth analysis of 17 global water policy, plan, and project case studies, it addresses the highly contested complexities of environmentally responsible water resources development, broadens the global perspectives on \"equitable sharing\" and \"sustainable use\" of water resources, and expands the definitions of \"benefits sharing\" in high-risk water resources development. The book fills a major gap in knowledge on IWRM and forms an important contribution to the ongoing discourse on climate change adaptation in the water sector.

The water sector is in the middle of a paradigm shift from focusing on treatment and meeting discharge permit limits to integrated operation that also enables a circular water economy via water reuse, resource recovery, and system level planning and operation.

The objective of this study is to assist public authorities to identify and address the future challenges of urban water supply, sanitation, and flood management in cities. In order to do that, this report uses the conceptual framework of Integrated Urban Water Management (IUWM) as a holistic set of planning and management tools incorporating all components of the urban water cycle to help develop efficient and flexible urban water systems in the future.The future of water in African cities: why waste water? argues that a new approach to urban water management is needed in Africa. Due to their rapid urbanization, cities in Sub-Saharan Africa will face increasing challenges in order to provide water supply to the growing population. Future water supply for cities will also depend on the potential to sustain water resources of good quality in the river basin and to manage competing uses within the watershed. The complexity of these challenges coupled with future uncertainty due to climate change will require a more sustainable, integrated and adaptive water management approach.Reviewing a series of case studies in Uganda, Kenya and Cameroon, and having conducted a diagnostic of 31 cities in Sub-Saharan Africa, this report suggests that the challenges faced by cities in Africa cannot be solved by the traditional approach of one source, one system, and one discharge. The 4 cases studies of this report illustrate the combination of existing technology and surface water with new sources (e.g. groundwater and greywater recycling) within the river basin that will increase water security for cities. In some cases, planning decentralized and modular solutions will bring more flexibility and adaptation to expanding cities.The future of water in African cities: why waste water? is aimed at urban planners, water managers, policy makers, development agencies and stakeholders interested in innovative solutions to urban water management challenges. IUWM will help policymakers in African cities consider a wider range of solutions, understand water’s interaction with other sectors, and secure resilience under a range of future conditions.

Quantifying water use for agricultural production and accurate evaluation is important for achieving a balance between water supply and demand and sustainable use, especially in arid regions. This study quantifies the water footprint of food production in the Tarim River Basin (TRB) from 2000 to 2019 by conducting a sustainability evaluation using both the water footprint and DPSIR model as a theoretical framework, and by analyzing spatial and temporal changes. The results show that the water footprint of the TRB increased from 2.15 m3/kg to 2.86 m3/kg per unit during the study period. The average annual weighted water footprint of the basin is 2.59 m3/kg, of which 2.41 m3/kg is blue water and 0.18 m3/kg is green water. Blue water inputs contribute more than 94% to food production annually. Furthermore, although the level of sustainable water use increased, its score is low, with the most prominent stress assessment value indicating poor regional water use. Prior to 2010, the Tarim River Basin region’s sustainability was less than 0.4, indicating that water resources were at or below the level of basic unsustainability. By 2019, however, the sustainability of areas with better water use was greater than 0.4., and the sustainability of 80% of the region was above 0.2. In the future, we need to reduce the crop water footprint and improve water use efficiency to ensure the sustainable use of water resources and avoid further pressure on water use.