scholarly journals Problems and Countermeasures of River Management in the Process of Rapid Urbanization in China

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2260
Author(s):  
Ziyang Zhao ◽  
Hongrui Wang ◽  
Yuanyuan Zhang ◽  
Caiyun Deng ◽  
Qiong Xie ◽  
...  
Keyword(s):  
Sustainable Use ◽  
River Management ◽  
Economic Incentive ◽  
Pollution Reduction ◽  
City Development ◽  
Rapid Urbanization ◽  
Challenges And Opportunities ◽  
Process Of Urbanization ◽  
Urbanization In China ◽  
Sustainable Use And Management

The rapid process of urbanization has led to water pollution, reduction of space areas and channel deposition. However, current river protection and management levels are not suitable for city development level and human demand. Therefore, these problems have not yet been solved. China is still in an era of rapid urbanization, which means that the influence of urbanization in rivers will increase in the future—and the task of river protection and management will be more arduous. In order to meet the challenges and opportunities brought by urbanization and promote the sustainable use and management of river, this study puts forward relevant suggestions on river protection and management, such as river management mechanisms, economic incentive instruments, technical support, transformation of development concepts, improving laws, regulations and policies and stimulating public participation.

scholarly journals Future city - challenges and opportunities for water-sensitive sustainable cities, in India

2020 ◽  
Vol 170 ◽  
pp. 06017
Author(s):  
Vandana Pusalkar ◽  
Vimala Swamy ◽  
Anand Shivapur
Keyword(s):  
Sustainable Development ◽  
Water Resources ◽  
Urban Areas ◽  
Sustainable Urban Development ◽  
City Development ◽  
Rapid Urbanization ◽  
Challenges And Opportunities ◽  
Face Threats ◽  
City Water ◽  
Almost All

Rapid urbanization, depleted resources, imbalance in urban hydrologic cycle, tremendous pressure on ecological functions, unhygienic and unhealthy environment is the scenario in almost all Indian cities. Water resources in the urban areas are fast depleting while the demand for the same is fast growing. Now more than ever before, water resources face threats from climate change, population growth, aging infrastructure, declining revenues, and a variety of other localized challenges. The challenge is to find ecologically sustainable, socially justified, economically viable, culturally transferable, and technological and managerial innovations which are appropriate to meet the needs of the future generations i.e. sustainable urban development. What is sustainable development? Detail study of sustainable development goals especially related to water, various recent trends of city development at major parts of world, from water perspective like Water-sensitive city, Water-wise city. Water-centric sustainable community can prove to be an ideal model of city development that will be truly sustainable with full focus on ecological balance so that social and economical sustainability also can be achieved.

Effectiveness Analysis of City Expansion in the Southeast of Changchun City to Economic Development Based on DEA

2014 ◽  
Vol 1073-1076 ◽  
pp. 1348-1351
Author(s):  
Dan Song ◽  
Qi Gang Jiang
Keyword(s):  
Decision Making ◽  
Economic Development ◽  
Urban Expansion ◽  
Rapid Urbanization ◽  
Evaluation Result ◽  
Effectiveness Analysis ◽  
Decision Making Unit ◽  
Changchun City ◽  
Dea Method ◽  
Urbanization In China

Under the background of rapid urbanization in China, this paper takes the southeast of Changchun city as an example, and uses 2008 to 2012 as decision making unit with DEA. Then it comes to the relevant conclusion of the effectiveness of urban expansion in Changchun city to the economic development:(1) the southeast of Changchun city may still have the space to continue expanding;(2) whether urban expansion in the future still brings more benefits to Changchun economic development or not, which mainly depends on the evaluation result after 2012;(3) DEA method has the feasibility and effectiveness in this respect, and such studies can be assumed to be one of the reference of determining city scale.

scholarly journals Numerical Analysis of the Characteristics of Gas Explosion Process in Natural Gas Compartment of Utility Tunnel Using FLACS

2019 ◽  
Vol 12 (1) ◽  
pp. 153 ◽  
Author(s):  
Zexu Li ◽  
Jiansong Wu ◽  
Mingyu Liu ◽  
Yuntao Li ◽  
Qiuju Ma
Keyword(s):  
Natural Gas ◽  
Gas Explosion ◽  
Rapid Urbanization ◽  
Flame Acceleration ◽  
Natural Gas Pipelines ◽  
Natural Gas Pipeline ◽  
Urban Safety ◽  
Fire And Explosion ◽  
Utility Tunnel ◽  
Urbanization In China

With the rapid urbanization in China, directly buried municipal pipelines have been gradually replaced by urban utility tunnels due to a serious shortage of urban underground spaces and weak disaster prevention of traditional municipal pipelines. The urban utility tunnels normally contain electricity pipelines, natural gas pipelines, heat pipelines, sewer pipelines, etc. If a natural gas pipeline leaks, a fire and explosion might occur and lead to serious consequences. In this study, the characteristics of gas explosion in a natural gas compartment of urban utility tunnel are investigated based on FLACS (Flame Acceleration Simulator) simulations. The results revealed that the flame profile undergoes two unstable flame stages. When the ignition position is set at the middle area (100.25, 1.2, 1.4 m) of the 200 m-long natural gas compartment, the maximum overpressure of the gas explosion in the 200 m-long natural gas compartment is 25.17 bar, which is the largest maximum overpressure under all gas explosion simulation setups. It is also found that the length of the natural gas compartment and different ignition positions have slight effects on the maximum overpressure. This study could provide technical support for structural strength design and division of the fireproofing area of the natural gas compartment in the utility tunnel, which is of great significance to improve urban safety during sustainable development.

scholarly journals Towards eco-social housing in Vietnam: challenges and opportunities

2018 ◽  
Vol 193 ◽  
pp. 01001
Author(s):  
Van Thuong Le ◽  
Tuan Tran ◽  
Truc Truong
Keyword(s):  
Low Income ◽  
Social Housing ◽  
Urban Areas ◽  
Housing Demand ◽  
Living Conditions ◽  
Local Economy ◽  
Rapid Urbanization ◽  
Long Run ◽  
Challenges And Opportunities ◽  
The Government

Since Doi Moi (Reform) policy in 1986, Vietnam has experienced rapid urbanization and economic growth. Urbanization has resulted in increasingly high housing demand in the urban areas but this has largely unmet, especially housing for low-income people. Development of social housing for low-income and under-privileged people in cities has been seen as an urgent and important task of the government to pursue stable social and economic development. Low-income people are most vulnerable to environmental impacts and in need of energy-efficient houses to reduce their cost of living. Eco-social housing is seen as a solution to protect the natural environment as well as to boost local economy, improve living conditions particularly for low income people. Through preliminary assessments of three social buildings at three distinct regions of Vietnam, this paper found that despite many challenges, eco-social housing is a solution to Vietnam's needs in providing houses with adequate living conditions to low-income people while protecting the environment and achieving sustainable eco-social development in the long run.

scholarly journals Living and Planning on the Edge: Unravelling Conflict and Claim-Making in Peri-Urban Lahore, Pakistan

2021 ◽  
Vol 6 (2) ◽  
pp. 189-201 ◽  
Author(s):  
Helena Cermeño
Keyword(s):  
Urban Governance ◽  
Urban Migration ◽  
Spatial Transformation ◽  
Rural Settlements ◽  
City Development ◽  
Rapid Urbanization ◽  
Population Growth Rates ◽  
Governance Practices ◽  
Inclusive Approach ◽  
High Population Growth

In Lahore, Pakistan’s second largest city, high population growth rates, decades of rural-urban migration, and rampant land and real-estate speculation have contributed to the rapid urbanization of peri-urban land and the engulfing of pre-existing rural settlements. Lahore’s spatial transformation goes hand in hand with an increasingly complex urban governance framework. Historically shaped by colonial planning institutions and decades of political instability as power alternated between military and civilian regimes, Pakistan’s governance practices have contributed to increasing levels of urban segregation and inequality. This raises questions around the in- and exclusionary role of planning in fostering or constraining residents’ access to housing and services. Comparing three vignettes and drawing upon insights gained from extensive fieldwork, this article employs the concept of ‘access-assemblages’ to analyze how access to urban resources—i.e., land, housing, and services—is experienced, disputed, and negotiated in the rapidly urbanizing peri-urban fringe of Lahore. The cases represent different spatial and socio-political configurations brought about by a variety of actors involved in the planning and development of the city’s periphery as well as in contesting development: private developers, the army, the city development authorities, and the residents of affected villages. The analysis unpacks the planning rationalities and mechanisms that reinforce inequalities of access and exclusions. Unfolding practices that enable or hinder actors’ ability to access resources sheds light on the complex layers assembled in urban planning in Lahore and serves as a basis to rethink planning towards a more inclusive approach.

scholarly journals Assessing Land Use Efficiency to Enhance Urban Dynamics through City Development Strategy. Case Study of Damietta City - Egypt

2020 ◽  
Author(s):  
Heba Soliman ◽  
◽  
Mohab El-Refaie ◽  
Keyword(s):  
Development Strategy ◽  
Space Environment ◽  
Eastern Coast ◽  
City Development ◽  
Rapid Urbanization ◽  
Urban Dynamics ◽  
Environment Quality ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
The One

Were studied in this paper, from the Angle of entropy and dissipative structure, sustainable urban metabolism strategies on rapid urbanization in China's eastern coast and the Beijing and Tianjin areas, explored urban development path from the incremental urban to the flow urban and stock urban: on the one hand, with the concept of ecological again, repair damaged in urban natural environment and landscape, improve the ecological environment quality. On the other hand, with the concept of renewal and mending, urban facilities, space environment and landscape features are restored to enhance urban characteristics and vitality.

Research on Reuse of Open-Pit Mines Abandoned Lands in Nanjing City

2013 ◽  
Vol 448-453 ◽  
pp. 923-926
Author(s):  
Ying Tan ◽  
Lin Lin Wang
Keyword(s):  
Site Investigation ◽  
Open Pit ◽  
Open Pit Mines ◽  
Is Implementation ◽  
Existing Problems ◽  
Nanjing City ◽  
Process Of Urbanization ◽  
Urbanization In China ◽  
Study Type ◽  
Abandoned Lands

Mining abandoned lands had become a new problem encountered in the process of urbanization in China. This article described a research of typical case, which took Nanjing city as the study space, and abandoned lands of open-pit mines as the study type. With an site investigation and data analysis, this research focused on the following four aspects: hierarchical size, mining methods, location distribution, and reuse situation. Working over the characteristics of current situation, this article pointed out existing problems and set goals. Then two advices were given to the further reuse work of open-pit mines abandoned lands in Nanjing. The first one is implementation by sorting and in batches, and the second one is economic measures combined effectively.

Redevelopment of Rural Settlements in Lizhuang Town, Yibin City, China

2015 ◽  
Vol 40 (4) ◽  
pp. 50-54
Author(s):  
Yin Pan ◽  
Tiejun Zhou
Keyword(s):  
Urban Areas ◽  
Architectural Design ◽  
Southwest China ◽  
Design Method ◽  
Living Environment ◽  
Third Party ◽  
Rural Settlements ◽  
Rapid Urbanization ◽  
Traditional Sense ◽  
Urbanization In China

Due to the rapid urbanization in China, the living environment in urban areas improves considerably, while that in rural settlements does not improve remarkably, or even worsens. The purpose of the research is to propose an organizational approach to the improvement of the living environment in the poverty-stricken rural settlements and an architectural design pattern under a variety of requirements in the context of China’s rapid urbanization and socio-economic development in the redevelopment of rural settlements in Yongsheng Village, Lizhuang Town, Yibin City of Sichuan Province in Southwest China. In this redevelopment project, the architects, as the important third party, are not just architects in the traditional sense in that they are involved in the organizational process and architectural design throughout the whole project. The redevelopment project has been completed, and is aimed at providing a scientific redevelopment model and a design method for other rural residents by guiding them in the improvement of their living environment under a variety of restrictions.

Interactive Strategies for Cultural Heritage Tourism and Macau City Development

2012 ◽  
pp. 65-84
Author(s):  
Aliana M. W. Leong ◽  
Jacky X. Li
Keyword(s):  
Cultural Heritage ◽  
Future Development ◽  
Heritage Tourism ◽  
Theory And Practice ◽  
Actual Condition ◽  
City Development ◽  
Challenges And Opportunities ◽  
Interactive Strategies ◽  
Strategic Goals ◽  
Cultural Heritage Tourism

This paper examines the cultural heritage resources of Macau in tandem with the city’s development. The investigation encompasses the actual condition of Macau’s cultural heritage tourism and the challenges and opportunities for its future development. Based on the experiences of other countries, the authors set strategic goals, provide an overall path and developmental strategies, and create a scientific structure with a framework built on theory and practice. The necessity and viability of cultural heritage tourism in cultivating and enhancing the city’s competitiveness as a tourism destination is argued. Based on a survey of visitors to Macau, the researchers gain an understanding of the tourists’ behavior, awareness and evaluation of scenic spots that are part of the cultural heritage tour.

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