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Water scarcity

About: Water scarcity is a research topic. Over the lifetime, 11579 publications have been published within this topic receiving 228756 citations. The topic is also known as: water shortage.


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Journal ArticleDOI
TL;DR: In this article, the potential of rainwater harvesting in Malaysia under the dynamic climate was discussed and the challenges of rain water harvesting development in terms of environment, policy, economy, social and technical.

93 citations

Journal ArticleDOI
TL;DR: In this paper, the benefits of this green, efficient and affordable solution to alleviate the global water crisis are highlighted. But, current water purification technologies are seldom sustainable, due to high energy consumption and negative environmental footprint.
Abstract: Water scarcity is rapidly spreading across the planet, threatening the population across the five continents and calling for global sustainable solutions Water reclamation is the most ecological approach for supplying clean drinking water However, current water purification technologies are seldom sustainable, due to high-energy consumption and negative environmental footprint Here, we review the cutting-edge technologies based on protein nanofibrils as water purification agents and we highlight the benefits of this green, efficient and affordable solution to alleviate the global water crisis We discuss the different protein nanofibrils agents available and analyze them in terms of performance, range of applicability and sustainability We underline the unique opportunity of designing protein nanofibrils for efficient water purification starting from food waste, as well as cattle, agricultural or dairy industry byproducts, allowing simultaneous environmental, economic and social benefits and we present a case analysis, including a detailed life cycle assessment, to establish their sustainable footprint against other common natural-based adsorbents, anticipating a bright future for this water purification approach

93 citations

Journal ArticleDOI
TL;DR: In this paper, the authors put forward the concept of Water Resources Constraint Force (WRCF) and constructed a conceptual framework on it, where water demand management (WDM) and integrated water resources management (IWRM) are considered as an important perspective and approach to alleviate WRCF.
Abstract: As water has become the shortest resources in arid, semi-arid and rapid urbanization areas when the water resources utilization has approached or exceeded its threshold, water resources system slows down the socio-economic growth rate and destroys the projected targets to eradicate poverty and realize sustainable development. We put forward the concept of Water Resources Constraint Force (WRCF) and constructed a conceptual framework on it. Conceptual models on the interactions and feedbacks between water resources and socio-economic systems in water scarce regions or river basins indicate that, if the socio-economic system always aims at sustainable development, WRCF will vary with a normal distribution curve. Rational water resources management plays an important role on this optimistic variation law. Specifically, Water Demand Management (WDM) and Integrated Water Resources Management (IWRM) are considered as an important perspective and approach to alleviate WRCF. A case study in the Hexi Corridor of NW China indicates that, water resources management has great impact on WRCF both in Zhangye and Wuwei Region, and also the river basins where they are located. The drastic transformation of water resources management pattern and the experimental project – Building Water-saving Society in Zhangye Region alleviated the WRCF to some extent. However, from a water resources management view, WRCF in Zhangye Region still belongs to the severe constraint type. It will soon step into the very severe constraint type. In order to shorten the periods from the very severe constraint type finally to the slight constraint type, WDM and IWRM in the Hei River Basin should be improved as soon as possible. However, in the Shiyang River Basin, WRCF belongs to the very severe constraint type at present due to poor water resources management in the past. Though the socio-economic system adapted itself and alleviated the WRCF to some extent, the Shiyang River Basin had to transform the water supply management pattern to WDM, and seek IWRM in recent years. It is concluded that WDM and IWRM is a natural selection to alleviate the WRCF on the socio-economic system and realize sustainable development.

93 citations

Journal ArticleDOI
TL;DR: In this article, the authors analyzed the possible impact of increased water scarcity on Australian agricultural production and the magnitude of subsequent impacts on global food security using the Australian Bureau of Statistics (ABS) data on land and water use coupled with a hydro-economic stochastic modelling approach.

93 citations

Posted ContentDOI
TL;DR: In this paper, the authors examined the relationship between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000.
Abstract: The report examines the relationships between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000. To systematically address these relationships, we use a comprehensive water-balance approach. Our results indicate that a single, longstanding policy-that of using groundwater to meet the crop-water requirements not supplied by precipitation-is responsible for the steady rate of groundwater decline.

93 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023562
20221,098
2021951
2020879
2019814
2018735