scholarly journals Urban Water Management Paradigms in Chinese Cities

2019 ◽  
Vol 11 (11) ◽  
pp. 3001 ◽  
Author(s):  
Meine Pieter van Dijk ◽  
Mingshun Zhang

Three paradigms used in China to deal with urban water issues are compared. The analysis focuses on their definition and objectives, the role of different stakeholders, the issues they deal with and the possible solutions suggested. The use of these paradigms in Chinese cities is compared on different dimensions to conclude when and where they can be used for which purpose. The paradigms differ substantially in their scope (from the narrow focus of the sponge city paradigm to the broad goals of eco-city paradigms) and in terms of the governance mechanisms used to coordinate between different actors. The resilient and sponge paradigms mainly use government structures to achieve their objectives, while the idea is to also involve the private sector (certainly in case of the sponge city paradigm). This has not happened most of the times because project money had to be spent in time. In the eco-cities approach the citizens want to be involved through newly created governance structures. In resilient cities potential victims may be involved. Resilient and eco-city initiatives emphasize the involvement of stakeholders, while in the sponge cities approach the initiative is often taken by local government. Finally, in terms of expected solutions, the paradigms want to avoid disaster, create an eco-city or improve water management. Only in the case of eco-cities there is more space for different water management practices and using alternative technologies. Water-related technologies are available, generating energy from wastewater or underground water and diminishing the dependence on fossil fuels.

2021 ◽  
Vol 13 (11) ◽  
pp. 5992
Author(s):  
Meine van Dijk ◽  
Mingshun Zhang

The journal retracts the 28 May 2019 article, cited above [...]


2020 ◽  
Author(s):  
Geoff Beeson

Freshwater scarcity is a critical challenge, with social, economic, political and environmental consequences. Water crises in Australia have already led to severe restrictions being applied in cities, drought ravaging farmlands, and the near-terminal decline of some rivers and wetlands. A Water Story provides an account of Australian water management practices, set against important historical precedents and the contemporary experience of other countries. It describes the nature and distribution of the country's natural water resources, management of these resources by Indigenous Australians, the development of urban water supply, and support for pastoral activities and agricultural irrigation, with the aid of case studies and anecdotes. This is followed by discussion of the environmental consequences and current challenges of water management, including food supply, energy and climate change, along with options for ensuring sustainable, adequate high-quality water supplies for a growing population. A Water Story is an important resource for water professionals and those with an interest in water and the environment and related issues, as well as students and the wider community.


2021 ◽  
Author(s):  
Zeyu Yao ◽  
Sarah Bell

Sustainable, resilient urban water management is fundamental to good environmental and public health. As an interdisciplinary task, it faces enormous challenges from project complexity, network dynamics, and the tacit nature of knowledge being communicated between actors involved in design, decisions and delivery. Among others, some critical and persistent challenges to the implementation of sustainable urban water management include the lack of knowledge and expertise, lack of effective communication and collaboration, and lack of shared understanding and context. Using the Chinese Sponge City programme as a case study, this paper draws on the perspectives of Polanyi and Collins to investigate the extent to which knowledge can be used and exchanged between actors. Using Collins’ conceptualisation of the terrain of tacit knowledge, the study identifies the use of relational, somatic, and collective tacit knowledge in the Sponge City pilot project. Structured interviews with 38 people working on a Sponge City pilot project provided data that was rigorously analysed using qualitative thematic analysis. The paper is original in using theories of tacit knowledge to explain barriers and pathways for information and messages being communicated between actors in urban water management. The methods and results provide the groundwork for analysing the access and mobilisation of tacit knowledge in the Sponge City pilot project, with relevance for other complex, interdisciplinary environmental projects and programmes.


2021 ◽  
Author(s):  
Arianna Dada ◽  
Christian Urich ◽  
Michèle Pezzagno ◽  
Giovanna Grossi

<p>The climate change of the last half century is globally causing an increasingly in violent meteorological phenomena. Cities are experiencing the pressures of these phenomena and they are facing many challenges - economic, social, health and environmental.</p><p>Over the coming decades the population growth and the rapid urbanization will bring to a tumultuous growth of the cities that will become more and more vulnerable, especially to flood hazards.</p><p>In order to make our urban water systems more effective to these challenges new water management strategies must be developed. The complexity of this challenge calls for the integration of knowledge from different disciplines and collaborative approaches.</p><p>The concept of Water Sensitive Cities is one of the starting points for developing new techniques, strategies, policies, and tools to ensure a better liveability, sustainability, and resilience of the cities.</p><p>In this study, the DAnCE4Water model to promote the development of Water Sensitive Cities, was applied to Parma, an Italian town that faced serious water issues in the last years. Through the model the efficiency of new decentralized technologies, as green roofs and porous pavement, and their integration with the existing centralized technologies (sewerage), was estimated.</p><p>The first phase of the study concerned the analysis of the current state of the sewerage network and the relative critical issues. Flow rates and the amount of surface runoff were calculated using the SWMM modelling software.</p><p>In the second phase three hypothetical different scenarios were created by adopting different intervention strategies. The first scenario was created by using green roofs for a percentage of existing buildings in the urban area equal to 30%; the second scenario was created by adopting the porous pavement technology. For the third scenario, a possible urban development was simulated, with its consequent population, without adopting any flood risk mitigation strategy. A hydraulic study was carried out for each scenario highlighting the differences in terms of runoff formation and percentage of infiltration.</p><p>The integrated approach enables a city to test its current water management practices and policy, it helps cities to identify their short and long term goals to enhance water sensitivity, it gives a quantification of benefits and costs and it provides an estimate,  still in the design phase, of the effectiveness of possible strategies under different scenarios like climate changes, changes in the societal needs and urban changes by modelling the complex dynamics between societal system, urban environment and the urban water system.</p>


2015 ◽  
Vol 15 (3) ◽  
pp. 456-473 ◽  
Author(s):  
K. Y. Foo

Urban water management remains a complex interplay between climate change, population growth, water scarcity, and the living environment. This agenda has called for an integrated, coordinated, ecologically-oriented, and participatory approach to the reliable protection of water resources. Malaysia, endowed with its rich natural resources and diversity recognizes the need to adopt a sound developmental framework to transform the country's water management landscape to a high quality and excellent level. In parallel with this development, both government and non-governmental organizations continue to advocate national efforts to address environmental research for incorporating the sustainability of environmental literacy and conservation of ecosystems. The plan espouses the establishment of urban water recycling, bio-retention systems, and constructed wetlands to buffer the impacts of water pollution, and preserve ecosystems for the neighboring communities. The impetus is accompanied by the integration of water quality monitoring systems, and boosted by the implementation of expert analysis. The present work attempts to address the dynamic pressure, key challenges, and benefits of urban water management practices in Malaysia. The sustainable concepts of waterfronts, constructed wetlands, and implementation of water monitoring analysis are elucidated. In addition, the research breakthroughs, major obstacles, and co-operative ventures for the promotion of urban water management are outlined.


2017 ◽  
Vol 23 (2) ◽  
pp. 186-198 ◽  
Author(s):  
Neil S. Grigg ◽  
Theresa Connor ◽  
Alex Maas

Cities seeking to reform water management practices that degrade sustainability are challenged by limited resources, financial needs of legacy infrastructures, institutional barriers, and rigid regulatory environments. Stakeholders in urban water programs report that financial aspects of One Water top their list of concerns. As shown by local initiatives, integrated water management strategies based on the One Water concept can help to mitigate these problems and provide additional benefits and co-benefits. Experiences reported by cities identify practices that facilitate financial solutions to ongoing concerns. Drawing from three sets of One Water cases, 36 examples were shown to include significant financial innovation. Analysis of them pointed to strategies that involve organizational approaches, regional shared governance, partnerships, resource conservation, and corporate social responsibility. Financial innovation in each category requires further study to identify new opportunities and to validate feasibility, along with benefits and co-benefits.


2021 ◽  
Vol 13 (10) ◽  
pp. 5358
Author(s):  
Jian Wang ◽  
Fei Xue ◽  
Ruiying Jing ◽  
Qiaohui Lu ◽  
Yilong Huang ◽  
...  

In recent years, cities universal are advocating ‘resilience’ in terms of water-related challenges. Accompanied by the development of sponge city construction, several emerging stormwater management practices are prevailing worldwide. This paper proposes a regenerative argument for sponge city construction from the urban scale towards the watershed scale by strengthening the urban water resilience and sustainability. An innovative framework is established to address urban water issues and human livability via 20 conventional and advanced indicators and the interrelations between the modules of water resilience, water resource, water treatment, water ecology, waterscape, and water management. Six representative cities from the sponge city construction pilot in South China have been selected, and the compatibility and divergence between their guidelines and the sponge watershed framework are revealed through pair analyses and parameter calculation. The diverse perspectives behind the scores have been discussed carefully, and the successful experiences of excellent cities are systematically summarized and promoted. The analyses and findings in this research have significant methodological implications for shifting the sponge city practice towards linking urban development with watershed ecological conservation. The proposed framework and strategies provide a reference for an integrated solution of watershed health and wellbeing in the next generation sponge city practice.


2018 ◽  
Vol 101 ◽  
pp. 256-267 ◽  
Author(s):  
Khoi A. Nguyen ◽  
Rodney A. Stewart ◽  
Hong Zhang ◽  
Oz Sahin ◽  
Nilmini Siriwardene

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