scholarly journals The future of water resources systems analysis: Toward a scientific framework for sustainable water management

2015 ◽  
Vol 51 (8) ◽  
pp. 6110-6124 ◽  
Author(s):  
Casey M. Brown ◽  
Jay R. Lund ◽  
Ximing Cai ◽  
Patrick M. Reed ◽  
Edith A. Zagona ◽  
...  
Author(s):  
Mykhailo Khvesyk ◽  
Lyudmila Levkovska ◽  
Valeriy Mandzyk

The article is devoted to the development of theoretical approaches to the formation and implementation of the strategy of water policy of Ukraine in the context of climate change. As a result of the conducted research, it is proved that because of influence of various external factors there are changes of basic imperatives of functioning of modern systems of management of water resources. The need to consider these changes by improving the strategic documents that define the priorities and principles of national water management policy is substantiated. It is established that one of the main reasons for the lack of water of good quality is its low value compared to other natural resources. This leads to a lack of legal, organizational, and financial and economic grounds for ensuring the payback of water and water-dependent ecosystem services, which is the reason for lack of funds and relevant work to improve and restore environmental and hydro morphological characteristics of reservoirs and repair and modernization of existing hydraulic structures. In this regard, emphasis is placed on the need to improve methods of economic regulation and the development of mechanisms and tools for financial support of sustainable water management. In the context of the above, it is proposed to include in the list of main tasks of the draft Water Strategy of Ukraine two groups of economic levers to increase the financial base of investment support for sustainable water management. The first group is aimed at improving the rent regulation of special use of water resources and provides for raising standards for unauthorized groundwater production, for companies that produce beverages and sell bottled drinking water, as well as limiting various benefits and preferences when paying special water use fees. The second - to change the system of water resources management, the development of institutional and legal support for their use in a globalized market environment, the implementation of modern instruments of financial and economic support for the formation of territorial water resources on a corporate basis.


2019 ◽  
Vol 20 (2) ◽  
pp. 679-687 ◽  
Author(s):  
Angelos Alamanos ◽  
Stamatis Sfyris ◽  
Chrysostomos Fafoutis ◽  
Nikitas Mylopoulos

Abstract The relationship between water abstraction and water availability has turned into a major stress factor in the urban exploitation of water resources. The situation is expected to be sharpened in the future due to the intensity of extreme meteorological phenomena, and socio-economic changes affecting water demand. In the city of Volos, Greece, the number of water counters has been tripled during the last four decades. This study attempts to simulate the city's network, supply system and water demand through a forecasting model. The forecast was examined under several situations, based on climate change and socio-economic observations of the city, using meteorological, water pricing, users' income, level of education, family members, floor and residence size variables. The most interesting outputs are: (a) the impact of each variable in the water consumption and (b) water balance under four management scenarios, indicating the future water management conditions of the broader area, including demand and supply management. The results proved that rational water management can lead to remarkable water conservation. The simulation of real scenarios and future situations in the city's water demand and balance, is the innovative element of the study, making it capable of supporting the local water utility.


2010 ◽  
Vol 62 (12) ◽  
pp. 2854-2861 ◽  
Author(s):  
A. Chanan ◽  
S. Vigneswaran ◽  
J. Kandasamy

A Water Sensitive City is now commonly acknowledged best practice for designing the cities of the future. In Australia, the National Water Initiative has allocated high priority towards offering insight into successful water sensitive urban development projects, to facilitate capacity building within the industry. This paper shares innovative water sensitive projects implemented at Kogarah City Council, in Sydney. Four key projects are discussed, demonstrating how stormwater, rainwater and wastewater can be incorporated into decentralised water systems to offer sustainable water management of the future. The case studies included in the paper highlight Kogarah's journey towards the Soft Path for Water Management.


Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7709
Author(s):  
Günter Müller-Czygan ◽  
Viktoriya Tarasyuk ◽  
Christian Wagner ◽  
Manuela Wimmer

Water is increasingly taking center stage when it comes to coping with climate change. Especially in urban areas, negative consequences from heavy rainfall events and prolonged dry periods are rising worldwide. In the past, the various tasks of urban water management were performed by different departments that often did not cooperate with each other (water supply, wastewater disposal, green space irrigation, etc.), as the required water supply was not a question of available water volumes. This is already changing with climate change, in some cases even dramatically. More and more, it is necessary to consider how to distribute available water resources in urban areas, especially during dry periods, since wastewater treatment is also becoming more complex and costly. In the future, urban water management will examine water use in terms of its various objectives, and will need to provide alternative water resources for these different purposes (groundwater, river water, storm water, treated wastewater, etc.). The necessary technological interconnection requires intelligent digital systems. Furthermore, the water industry must also play its role in global CO2 reduction and make its procedural treatment processes more efficient; this will also only succeed with adequate digital systems. Although digitization has experienced an enormous surge in development over the last five years and numerous solutions are available to address the challenges described previously, there is still a large gap between the scope of offerings and their implementation. Researchers at Hof University of Applied Sciences have investigated the reasons for this imbalance as part of WaterExe4.0, the first meta-study on digitization in the German-speaking water industry, funded by the German Federal Ministry of Education and Research. Only 11% of roughly 700 identified products, projects and studies relate to real applications. For example, the surveyed experts of the water sector stated that everyday problems are considered too little or hardly at all in new solutions, which greatly overburdens users. Furthermore, they see no adequate possibility for a systematic analysis of new ideas to identify significant obstacles and to find the best way to start and implement a digitization project. The results from four methodologically different sub-surveys (literature and market research, survey, expert interviews and workshops) provide a reliable overview of the current situation in the German-speaking water industry and its expectations for the future. The results are also transferable to other countries.


Entropy ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 882
Author(s):  
Weizhong Chen ◽  
Yan Chen ◽  
Yazhong Feng

The vulnerability of water resources is an important criterion for evaluating the carrying capacity of water resources systems under the influence of climate change and human activities. Moreover, assessment and prediction of river basins’ water resources vulnerability are important means to assess the water resources security state of river basins and identify possible problems in future water resources systems. Based on the constructed indicator system of water resources vulnerability assessment in Song-Liao River Basin, this paper uses the neighborhood rough set (abbreviated as NRS) method to reduce the dimensionality of the original indicator system to remove redundant attributes. Then, assessment indicators’ standard values after dimensionality reduction are taken as the evaluation sample, and the random forest regression (abbreviated as RF) model is used to assess the water resources vulnerability of the river basin. Finally, based on data under three different future climate and socio-economic scenarios, scenario predictions are made on the vulnerability of future water resources. The results show that the overall water resources vulnerability of the Song-Liao River Basin has not improved significantly in the past 18 years, and the overall vulnerability of the Song-Liao River Basin is in the level V of moderate to high vulnerability. In the future scenario 1, the overall water resources vulnerability of the river basin will improve, and it is expected to achieve an improvement to the level III of moderate to low vulnerability. At the same time, the natural vulnerability and vulnerability of carrying capacity will increase significantly in the future, and the man-made vulnerability will increase slowly, which will deteriorate to the level V of moderate to high vulnerability under Scenario 3. Therefore, taking active measures can significantly reduce the vulnerability of nature and carrying capacity, but man-made vulnerability will become a bottleneck restricting the fragility of the overall water resources of the river basin in the future.


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