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Author: Xueru Zhang Publisher: Frontiers Media SA ISBN: 2832549748 Category : Science Languages : en Pages : 277
Book Description
Since the middle of the last century, rapid population growth and urbanization have led to the encroachment of a large number of natural spaces, resulting in a series of ecological security issues such as environmental pollution, resource depletion and habitat destruction, which have severely challenged global sustainable development. Urban ecological security is an important barrier to urban residents' production and life, the foundation and core of national or regional ecological security, and it is of great significance to promote green development and harmonious coexistence between humans and nature. With global warming, frequent natural disasters and other multifactorial threats, the issue of ecological security in cities as centers of the settlement have become a focus of international attention. However, cities are complex systems with social, economic and natural conditions coupled with each other. Under the overlapping of many factors, the basic problems such as the mechanism of urban development on ecological security have not been fully explained, and there is also a lack of quantitative assessment methods corresponding to urban ecological conditions, let alone simulation and prediction.
Author: Xueru Zhang Publisher: Frontiers Media SA ISBN: 2832549748 Category : Science Languages : en Pages : 277
Book Description
Since the middle of the last century, rapid population growth and urbanization have led to the encroachment of a large number of natural spaces, resulting in a series of ecological security issues such as environmental pollution, resource depletion and habitat destruction, which have severely challenged global sustainable development. Urban ecological security is an important barrier to urban residents' production and life, the foundation and core of national or regional ecological security, and it is of great significance to promote green development and harmonious coexistence between humans and nature. With global warming, frequent natural disasters and other multifactorial threats, the issue of ecological security in cities as centers of the settlement have become a focus of international attention. However, cities are complex systems with social, economic and natural conditions coupled with each other. Under the overlapping of many factors, the basic problems such as the mechanism of urban development on ecological security have not been fully explained, and there is also a lack of quantitative assessment methods corresponding to urban ecological conditions, let alone simulation and prediction.
Author: Hassan Tolba Aboelnga Publisher: BoD – Books on Demand ISBN: 3737609608 Category : Technology & Engineering Languages : en Pages : 186
Book Description
Urban water security is crucial for achieving sustainable development, peace, and human health and well-being. Framing urban water security is challenging due to the complexity and uncertainty of its definition and assessment framework. Several studies have assessed water security in widely divergent ways by granting priority indicators equal weight without considering or adapting to local conditions. This dissertation develops a new urban water security definition and assessment framework applicable to water scarce cities, with a focus on Madaba, Jordan. It takes a novel and systematic approach to assessing urban water security and culminates in integrated urban water security index (IUWSI) as a diagnostic tool and guide management actions. The dissertation suggests a new working definition of urban water security based on the United Nations (UN) Sustainable Development Goal 6.1 on safe drinking water for all and the human rights on water and sanitation as follows: The dynamic capacity of water systems and stakeholders to safeguard sustainable and equitable access to water of adequate quantity and acceptable quality that is continuously, physically and legally available at an affordable cost for sustaining livelihoods, human well-being and socioeconomic development, ensuring protection against waterborne pollution and water-related disasters, and for preserving ecosystems in a climate of peace and political stability. This proposed definition captures issues at the urban level of technical, environmental and socioeconomic indicators that emphasize credibility, legitimacy and salience. The assessment framework establishes a criteria hierarchy, consisting of four main dimensions to achieve urban water security: drinking water and human well-being, ecosystem, climate change and water-related hazards and socioeconomic aspects (together, DECS). The framework enables the analysis of relationships and trade-offs between urbanization, water security and DECS indicators. The dissertation also provides a structured analysis to understand how urban water is managed in intermittent water supply system, by conducting a water balance analysis after quantifying the components of water losses in Madaba’s water distribution network. The findings showed that Madaba's non-revenue water (NRW) amounted to annual loss of about 3.5 million m3, corresponding to financial losses of 2.8 million USD to the utility, of which 1.7 million USD is the cost of real losses. The dissertation provided an intervention strategy for strengthening infrastructure resilience and reducing leakage via the infrastructure, repair, economic, awareness and pressure (IREAP) framework. The IREAP framework provides a robust strategy to shift intermittent water supply (IWS) into continuous water supply. The IUWSI highlighted the state of water security in Madaba, Jordan and identified the means of implementation to move towards achieving urban water security based on the priorities for Madaba. The drinking water and human wellbeing dimension was the most important priority, receiving a weight of 66.22%, followed by ecosystem (17.15%), socioeconomic aspects (10.18%), and climate change and water-related hazards (6.45%) dimensions. The IUWSI indicated that the urban water security in Madaba is reasonable with a score of 2.5/5 and can meet the minimum requirements in several dimensions, but nonetheless, it has many loopholes to cover. Gaps are clear in the climate change and water-related hazards, and socioeconomic dimensions with scores of 1.6/5 and 2.237/5 respectively. Additionally, specific shortcomings are found in indicators such as water availability, reliability, diversity, and public health. The IUWSI framework assists with a rational and evidence-based decision-making process, which is important for enhancing water resource management in water-scarce cities
Author: Grazia Brunetta Publisher: MDPI ISBN: 3036507663 Category : Social Science Languages : en Pages : 266
Book Description
The concept of resilience has arisen as a “new way of thinking”, becoming a response to both the causes and effects of ongoing global challenges. As it strongly stresses cities’ transformative potential, resilience’s final purpose is to prevent and manage unforeseen events and improve communities’ environmental and social quality. Although the resilience theory has been investigated in depth, several methodological challenges remain, mainly related to the concept’s practical sphere. As a matter of fact, resilience is commonly criticised for being too ambiguous and empty of meaning. At the same time, turning resilience into practice is not easy to do. This will arguably be one of the most impactful global issues for future research on resilience. The Special Issue “Bridging the Gap: The Measure of Urban Resilience” falls under this heading, and it seeks to synthesise state-of-the-art knowledge of theories and practices on measuring resilience. The Special Issue collected 11 papers that address the following questions: “What are the theoretical perspectives of measuring urban resilience? What are the existing methods for measuring urban resilience? What are the main features that a technique for measuring urban resilience needs to have? What is the role of measuring urban resilience in operationalising cities’ ability to adapt, recover and benefit from shocks?”
Author: Beth Schaefer Caniglia Publisher: Taylor & Francis ISBN: 1317311892 Category : Business & Economics Languages : en Pages : 263
Book Description
Urban centres are bastions of inequalities, where poverty, marginalization, segregation and health insecurity are magnified. Minorities and the poor – often residing in neighbourhoods characterized by degraded infrastructures, food and job insecurity, limited access to transport and health care, and other inadequate public services – are inherently vulnerable, especially at risk in times of shock or change as they lack the option to avoid, mitigate and adapt to threats. Offering both theoretical and practical approaches, this book proposes critical perspectives and an interdisciplinary lens on urban inequalities in light of individual, group, community and system vulnerabilities and resilience. Touching upon current research trends in food justice, environmental injustice through socio-spatial tactics and solution-based approaches towards urban community resilience, Resilience, Environmental Justice and the City promotes perspectives which transition away from the traditional discussions surrounding environmental justice and pinpoints the need to address urban social inequalities beyond the build environment, championing approaches that help embed social vulnerabilities and resilience in urban planning. With its methodological and dynamic approach to the intertwined nature of resilience and environmental justice in urban cities, this book will be of great interest to students, scholars and practitioners within urban studies, environmental management, environmental sociology and public administration.
Author: Sarah Dooling Publisher: Routledge ISBN: 1317165969 Category : Social Science Languages : en Pages : 204
Book Description
Bringing together an interdisciplinary team of scholars, this book illustrates how and why cities are comprised by a mosaic of vulnerable human and ecological communities. Case studies ranging across various international settings reveal how 'urban vulnerabilities' is an effective metaphor and analytic lens for advancing political ecological theories on the relationships between cities, nature and development. Contributions expand upon conceptions of vulnerability as a static condition and instead present vulnerability as a phenomenon that is produced through complex and contentious planning histories, and which may, in turn, be politicized, exploited and-in some instances-contested. Expanding upon snapshot vulnerability assessments, this volume articulates vulnerability as a process that is marked by the accumulation of risk over time and the transference of risk across space and populations. Moving beyond notions of vulnerability as a singular, case studies demonstrate that social and ecological vulnerabilities are deeply integrated and, as such, are irreducible to one or the other. This volume also highlights how the production of vulnerabilities is frequently achieved through integrated and mutually reinforcing economic development and environmentally driven agendas. This collection thus suggests that vulnerability-and also forms of resilience-are implicated in efforts to plan for and manage sustainable cities. This book provides timely and provocative perspectives on a wide range of urban issues including: park management, gentrification, suburban expansion, sustainability planning, local organic food systems, hazards management, climate change activism and north-south flows of urban environmental externalities. Collectively, these works reveal the complexities of urban vulnerabilities-related to scalar interactions, accumulation and transfer of risk, politicization and governance, and capacity for resistance-and in doing so, provide readers with coherent, robust and well-theorized analysis of the politics and production of urban vulnerabilities.
Author: Timon McPhearson Publisher: Edward Elgar Publishing ISBN: 1800376766 Category : Political Science Languages : en Pages : 409
Book Description
This is an open access title available under the terms of a CC BY-NC-ND 4.0 License. It is free to read, download and share on Elgaronline.com. Nature-based solutions (NBS) are increasingly being adopted to address climate change, health, and urban sustainability, yet ensuring they are effective and inclusive remains a challenge. Addressing these challenges through chapters by leading experts in both global south and north contexts, this forward-looking book advances the science of NBS in cities and discusses the frontiers for next-generation urban NBS.
Author: Yoshiki Yamagata Publisher: Springer ISBN: 3319398121 Category : Science Languages : en Pages : 315
Book Description
This book is on urban resilience – how to design and operate cities that can withstand major threats such as natural disasters and economic downturns and how to recover from them. It is a collection of latest research results from two separate but collaborating research groups, namely, researchers in urban design and those on general resilience theory. The book systematically deals with the core aspects of urban resilience: systems, management issues and populations. The taxonomy can be broken down into threats, systems, resilience cycles and recovery types in the context of urban resilience. It starts with a discussion of systems resilience models, focusing on the central idea that resilience is a moving average of costs (a set of trajectories in a two-player game paradigm). The second section explores management issues, including planning, operating and emergency response in cities with specific examples such as land-use planning and carbon-neutral scenarios for urban planning. The next section focuses on urban dwellers and specific people-related issues in the context of resilience. Agent-based simulation of behaviour and perception-based resilience, as well as brand crisis management are representative examples of the topics discussed. A further section examines systems like public utilities – including managing power supplies, cyber-security issues and models for pandemics. It concludes with a discussion of the future challenges and risks facing complex systems, for example in resilient power grids, making it essential reading for a wide range of researchers and policymakers.
Author: Xueru Zhang
Author: Xueru Zhang
Author: Hassan Tolba Aboelnga
Author: Jun Yang
Author: Grazia Brunetta
Author: Beth Schaefer Caniglia
Author: Cynthia Rosenzweig
Author: 
Author: Sarah Dooling
Author: Timon McPhearson
Author: Yoshiki Yamagata