scholarly journals Coupling Relationship between Urban Expansion and Lake Change—A Case Study of Wuhan

Water ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1215 ◽  
Author(s):  
Jing Wu ◽  
Jiameng Luo ◽  
Lin Tang
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Negative Impact ◽  
Urban Expansion ◽  
Water System ◽  
Sustainable Urban Development ◽  
Urban Policies ◽  
Urban Construction ◽  
Long Time ◽  
Lake Change

With the development of urbanisation, the contradiction between urban expansion and lake protection becomes increasingly evident. Particularly, lake reclamation of urban construction causes serious damage to the water system and further affects the ecological environment of urban areas. On the basis of the interpretation and analysis of long time-series remote sensing images, this study evaluated the spatial pattern and dynamic changes of urban built-up areas and lakes in Wuhan from 1987–2018 and analysed the role of urban policies in this process. A coupling coordination degree model was used to analyse the correlation between them. Results show that with the continuous advancement of urban construction and renewal of urban policies, the coupling degree between urban expansion and lake change in Wuhan has been on the rise in the past 30 years. Moreover, the antagonistic relationship between urban construction and lake protection has gradually eased from severe imbalance to slightly balanced, and the negative impact of urban development on lake change has gradually decreased. The findings underscore the need for Wuhan to adhere to policies that promote lake protection. Lake supervision should be strengthened, and ecological restoration should be actively promoted. Furthermore, sustainable urban development policies should be maintained to improve the quality of urban development.

Monitoring of Rapid Urban Sprawl in Beijing with Time Series Remote Sensing Data and Analysis of Driving Forces

2013 ◽  
Vol 726-731 ◽  
pp. 4591-4595 ◽  
Author(s):  
Jin Ling Zhao ◽  
Dong Yan Zhang ◽  
Hao Yang ◽  
Lin Sheng Huang
Keyword(s):  
Economic Development ◽  
Urban Area ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Driving Forces ◽  
Urban Expansion ◽  
Sustainable Urban Development ◽  
Significant Information ◽  
South Central ◽  
Urban Construction

Beijing has experienced a rapid urban sprawl over the past three decades, along with accelerated socio-economic development. This study investigated the change patterns and figured out the driving forces of urban expansion in the study area. To obtain urban class, decision tree classification techniques were used to identify the land cover types using four scenes of Landsat images from four periods of 1978-era, 1992-era, 2000-era and 2010-era. Then, the urban areas were identified by excluding water, agriculture, forest, grassland and bare land. The analysis results showed that: 1) urban construction land had been expanded very quickly and the urban area is mainly in the south-central part of the municipality; 2) the urban area increased by 96284.97 ha and the ratio was 5.88%; and 3) population growth, economic development, urban construction and industrial structure adjustment could explain the expansion. These analysis results can provide significant information on the monitoring and management of sustainable urban development.

scholarly journals Sustainable Urban Development: Building Healthy Cities in Indonesia

2019 ◽  
Author(s):  
Linda Darmajanti ◽  
◽  
Daniel Mambo Tampi ◽  
Irene Sondang Fitrinita ◽  
◽  
...  
Keyword(s):  
Urban Development ◽  
Public Transportation ◽  
Urban Areas ◽  
Urban Poor ◽  
Urban Economics ◽  
Negative Impact ◽  
Positive Impact ◽  
Sustainable Urban Development ◽  
Healthy Cities ◽  
Healthy City

The urban process or commonly called urbanization is a phenomenon that is occurring in several regions in Indonesia. In 2045, the projection results show 61.7% of Indonesia's population will live in urban areas. In the process, cities in Indonesia are facing several challenges related to Urban Infrastructure, decent and affordable housing, clean environment, local economic, slum, and urban poor (Social welfare). These indicators can have a positive impact on increasing the city index with healthy city categories, but also can have a negative impact with the increasing gap between the poor and the rich. The purposes of this study are to find out which cities in Indonesia fall into the category of healthy cities and to find out what factors and actors play a role in building healthy cities in Indonesia. The analytical method in this study is log frame analysis. The result is building healthy cities is closely related to the availability of aspects of life in urban areas: health services, environmental, and socioeconomic aspects. There are 3 cities in Indonesia: Palembang, Solo and Denpasar City. Building a healthy city is also an effort in improving health status, health facilities, cleanliness, garbage services, food availability, clean water, security, safety, park facilities, public transportation, art and culture facilities, housing, urban economics, religious facilities, and urban planning quality. Healthy cities in Indonesia will be achieved if efforts to improve not only physical health but also mental, social, economic and spiritual health are achieved. Finally, building a healthy city in Indonesia is an effort to contribute to sustainable urban development.

Problems of Development of Small and Medium Russian Towns

2019 ◽  
pp. 24-29
Author(s):  
V V. Kafidov ◽  
V. N. Filippov ◽  
I. P. Filippova
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Negative Impact ◽  
Physical Space ◽  
Living Environment ◽  
Transport Infrastructure ◽  
Negative Effects ◽  
Conceptual Approach ◽  
Fundamental Factor ◽  
New Buildings

The presented study addresses the problems of development of small and medium towns in Russia. Aim. The study aims to examine a town as a socio-economic environment where its residents exist and as the fundamental factor for the development of society.Tasks. The authors identify key problems in the development of small and medium Russian towns, which interferes with the historical appearance and has a negative impact on the living environment.Methods. Problems in the development of small and medium towns in Russia are examined using theoretical methods: systematic approach, statistical analysis, social and philosophical analysis.Results. The study identifies the main negative effects of the existing model of development of small and medium Russian towns, such as destruction of their historical and cultural appearance, distortion of the overall architectural motif, increased load on communications, and congestion of the transport infrastructure.Conclusions. At the current stage, efficient development of small and medium towns in Russia is impossible within the framework of the existing infill development. This chaotic process cannot be stopped without a new conceptual approach and changes in the legislative and normative framework of urban development. The only factor that determines the boundaries of the existing approach to urban development is the lack of physical space for new buildings in urban areas. The authors formulate proposals that would help to solve the problems of development of small and medium towns in Russia. 

scholarly journals An Optimized Approach for Extracting Urban Land Based on Log-Transformed DMSP-OLS Nighttime Light, NDVI, and NDWI

2021 ◽  
Vol 13 (4) ◽  
pp. 766
Author(s):  
Yuanmao Zheng ◽  
Qiang Zhou ◽  
Yuanrong He ◽  
Cuiping Wang ◽  
Xiaorong Wang ◽  
...  
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Development Planning ◽  
Urban Land ◽  
Sustainable Urban Development ◽  
Land Use Patterns ◽  
Water Index ◽  
Nighttime Light

Quantitative and accurate urban land information on regional and global scales is urgently required for studying socioeconomic and eco-environmental problems. The spatial distribution of urban land is a significant part of urban development planning, which is vital for optimizing land use patterns and promoting sustainable urban development. Composite nighttime light (NTL) data from the Defense Meteorological Program Operational Line-Scan System (DMSP-OLS) have been proven to be effective for extracting urban land. However, the saturation and blooming within the DMSP-OLS NTL hinder its capacity to provide accurate urban information. This paper proposes an optimized approach that combines NTL with multiple index data to overcome the limitations of extracting urban land based only on NTL data. We combined three sources of data, the DMSP-OLS, the normalized difference vegetation index (NDVI), and the normalized difference water index (NDWI), to establish a novel approach called the vegetation–water-adjusted NTL urban index (VWANUI), which is used to rapidly extract urban land areas on regional and global scales. The results show that the proposed approach reduces the saturation of DMSP-OLS and essentially eliminates blooming effects. Next, we developed regression models based on the normalized DMSP-OLS, the human settlement index (HSI), the vegetation-adjusted NTL urban index (VANUI), and the VWANUI to analyze and estimate urban land areas. The results show that the VWANUI regression model provides the highest performance of all the models tested. To summarize, the VWANUI reduces saturation and blooming, and improves the accuracy with which urban areas are extracted, thereby providing valuable support and decision-making references for designing sustainable urban development.

scholarly journals Evaluating the Suitability of Urban Expansion Based on the Logic Minimum Cumulative Resistance Model: A Case Study from Leshan, China

2019 ◽  
Vol 8 (7) ◽  
pp. 291 ◽  
Author(s):  
Haijun Wang ◽  
Peihao Peng ◽  
Xiangdong Kong ◽  
Tingbin Zhang ◽  
Guihua Yi
Keyword(s):  
Urban Development ◽  
Evaluation System ◽  
Urban Expansion ◽  
Ecological Impacts ◽  
Sustainable Urban Development ◽  
Expansion Process ◽  
Mountain Areas ◽  
Resistance Factors ◽  
Ecological Barriers

This paper focuses on the suitability of urban expansion in mountain areas against the background of accelerated urban development. Urbanization is accompanied by conflict and intense transformations of various landscapes, and is accompanied by social, economic, and ecological impacts. Evaluating the suitability of urban expansion (UE) and determining an appropriate scale is vital to solving urban environmental issues and realizing sustainable urban development. In mountain areas, the natural and social environments are different from those in the plains; the former is characterized by fragile ecology and proneness to geological disasters. Therefore, when evaluating the expansion of a mountain city, more factors need to be considered. Moreover, we need to follow the principle of harmony between nature and society according to the characteristics of mountain cities. Thus, when we evaluate the expansion of a mountain city, the key procedure is to establish a scientific evaluation system and explore the relationship between each evaluation factor and the urban expansion process. Taking Leshan (LS), China—a typical mountain city in the upper Yangtze River which has undergone rapid growth—as a case study, the logic minimum cumulative resistance (LMCR) model was applied to evaluate the suitability of UE and to simulate its direction and scale. The results revealed that: An evaluation system of resistance factors (ESRFs) was established according to the principle of natural and social harmony; the logic resistance surface (LRS) scientifically integrated multiple resistance factors based on the ESRF and a logic regression analysis. LRS objectively and effectively reflected the contribution and impact of each resistance factor to urban expansion. We found that landscape, geological hazards and GDP have had a great impact on urban expansion in LS. The expansion space of the mountain city is limited; the area of suitable expansion is only 23.5%, while the area which is unsuitable for expansion is 39.3%. In addition, it was found that setting up ecological barriers is an effective way to control unreasonable urban expansion in mountain cities. There is an obvious scale (grid size) effect in the evaluation of urban expansion in mountain cities; an evaluation of the suitable scale yielded the result of 90 m × 90 m. On this scale, taking the central district as the center, the urban expansion process will extend to the neighboring towns of Mianzhu, Suji, Juzi and Mouzi. Urban expansion should be controlled in terms of scale, especially in mountain cities. The most suitable urban size of LS is 132 km2.This would allow for high connectivity of urban-rural areas with the occupation of relatively few green spaces.

scholarly journals Flood Hazard Assessment of the Urban Area of Tabuk City, Kingdom of Saudi Arabia by Integrating Spatial-Based Hydrologic and Hydrodynamic Modeling

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1024 ◽  
Author(s):  
Ashraf Abdelkarim ◽  
Ahmed Gaber ◽  
Ahmed Youssef ◽  
Biswajeet Pradhan
Keyword(s):  
Saudi Arabia ◽  
Urban Development ◽  
Urban Area ◽  
Urban Areas ◽  
Morphological Characteristics ◽  
Hydraulic Modeling ◽  
Sustainable Urban Development ◽  
Flood Hazards ◽  
Kingdom Of Saudi Arabia ◽  
The Impact

This study deals with the use of remote sensing (RS), geographic information systems (GISs), hydrologic modeling (water modeling system, WMS), and hydraulic modeling (Hydrologic Engineering Center River Analysis System, HEC-RAS) to evaluate the impact of flash flood hazards on the sustainable urban development of Tabuk City, Kingdom of Saudi Arabia (KSA). Determining the impact of flood hazards on the urban area and developing alternatives for protection and prevention measures were the main aims of this work. Tabuk City is exposed to frequent flash flooding due to its location along the outlets of five major wadis. These wadis frequently carry flash floods, seriously impacting the urban areas of the city. WMS and HEC-HMS models and RS data were used to determine the paths and morphological characteristics of the wadis, the hydrographic flow of different drainage basins, flow rates and volumes, and the expansion of agricultural and urban areas from 1998 to 2018. Finally, hydraulic modeling of the HEC-RAS program was applied to delineate the urban areas that could be inundated with floodwater. Ultimately, the most suitable remedial measures are proposed to protect the future sustainable urban development of Tabuk City from flood hazards. This approach is rarely used in the KSA. We propose a novel method that could help decision-makers and planners in determining inundated flood zones before planning future urban and agricultural development in the KSA.

Carbon Emission and Urban Construction Land Expansion in China: Evidence from Co-Integration Tests and Impulse Response Model

2014 ◽  
Vol 1010-1012 ◽  
pp. 1883-1888
Author(s):  
Wen Wen Qiu
Keyword(s):  
Urban Development ◽  
Impulse Response ◽  
Carbon Emission ◽  
Industrial Structure ◽  
Urban Expansion ◽  
Response Analysis ◽  
Causality Test ◽  
Construction Land ◽  
Urban Construction ◽  
The Impact

Using co-integration analysis, Granger causality test, and impulse response analysis in an integrated way, this paper makes empirical study of the impact on China’s carbon emission by its urban construction land expansion. The result shows that there is a long-run equilibrium relationship between carbon emission and urban construction land expansion in China, with the latter being the Granger cause of the increase in carbon emission. However, the impact process shows a lagging nature. The impact effect is not so evident in a short term, but is rather significant in a long term (five to ten years). To reduce its carbon emission, China should optimize its urban development mode and control the scale of urban development reasonably, especially focusing on the economical and intensive use of land and upgrading of industrial structure, so as to reduce energy consumption by its urban expansion, check excessive increase in carbon emission, and promote the sustainable urbanization.

scholarly journals Reorganization of industrial zones as a factor of sustainable development of urban areas

2021 ◽  
Vol 296 ◽  
pp. 03006
Author(s):  
Inna Baranova ◽  
Maria Vlasenko ◽  
Tamara Dzholdosheva ◽  
Eugenia Prikhodko
Keyword(s):  
Cluster Analysis ◽  
Sustainable Development ◽  
Urban Development ◽  
Urban Areas ◽  
Environmental Problems ◽  
Sustainable Urban Development ◽  
Integrated Development ◽  
Effective Use ◽  
Industrial Zones

The reuse of industrial zones is becoming one of the determinants of sustainable urban development, which ensures the effective use of urban areas, taking into account the principle of their integrated development. However, the modern urbanized environment has serious environmental problems, which limits the active use of the redevelopment tool. The conducted research of the implemented redevelopment projects showed that their main share is accounted for the construction of apartments and housing, multinational complexes, creative spaces and offices. The results of the cluster analysis of the territories of Russia allowed the authors to identify the most promising regions for redevelopment.

scholarly journals Linking Sustainable Urban Development With Town Planning Through Proximity Trade

2021 ◽  
Vol 10 (4) ◽  
pp. 121
Author(s):  
Jose Manuel Diaz-Sarachaga
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Urban Policy ◽  
Urban Morphology ◽  
Town Planning ◽  
Sustainable Urban Development ◽  
Sustainable Mobility ◽  
Urban Fabric ◽  
Commercial Activities ◽  
Motorized Vehicles

Losses from commercial activities reflect the decline and deterioration of the downtown, the urban fabric and the social structure of the cities. The dependence on motorized vehicles has grown significantly among consumers who must move to meet their daily needs. Such a process marginalizes vulnerable populations by promoting urban lifestyles less sustainable. Proximity trade is therefore becoming increasingly important for those groups because it encourages dynamism among distinct urban areas and reduces the use of vehicles. This urban model addresses a relevant issue as universal accessibility that allows residents to enjoy an available city and move freely without encountering obstacles. The major role played by trade in the creation of wealth and urban fabric demands the integration of commercial areas provisions into urban policy guidelines. In this context, the study aims at developing a set of indicators that link proximity trade with the promotion of sustainable urban development and the model of compact city to be included in Spanish urban planning guidelines. Sixteen indicators were thus formulated around five areas of action: urban morphology, urban complexity, sustainable mobility, urban metabolism and social cohesion.

Sign in / Sign up

Export Citation Format

Share Document