scholarly journals Spatial Zoning Strategy of Urbanization Based on Urban Climate Co-Movement: A Case Study in Shanghai Mainland Area

2018 ◽  
Vol 10 (8) ◽  
pp. 2706 ◽  
Author(s):  
Yunfang Jiang ◽  
Luyao Hou ◽  
Tiemao Shi ◽  
Yuemin Ning
Keyword(s):  
Land Use ◽  
Rapid Development ◽  
Urban Climate ◽  
Influential Factors ◽  
Urban Land Use ◽  
Climate System ◽  
Variation Method ◽  
Climate Effect ◽  
Spatial Factors ◽  
Space Partition

Urbanization has brought with it large populations in cities, which has then led to changes in urban land use intensity and spatial patterns, resulting in changes in underlying surfaces and urban climate. The impacts of the early urbanization process and the rapid development of the international metropolis on the interactive development of spatial zoning, urban climate, and urbanization in the main region of Shanghai are studied. This study has important practical and methodological implications with respect to two major themes in the current urban planning area of China, specifically, the construction of new urbanization and the changes in urban climate adaptation. Through the experiences of the human activities model from ecology, factors are selected based on the effects of climate on four dimensions, namely, economy, urban construction, ecological, and environment, where the weight of each index is determined by the coefficient of the variation method and the important spatial factors influencing the climate effect are screened out. The four important influential factors are population density, road density, built-up areas, and the green coverage ratio of spatial distribution. A quantitative analysis determined that there exists a consistent relationship between urban climate factors and the four urbanization spatial factors. Based on urbanization classification that considered each factor evaluation along with integrated analyses and statistical correlation analyses of the spatial grid index using ArcGIS software, the urban space partition level is identified, and urban spatial zoning strategies based on the co-movement of urban climate system are put forward. Combined with the zoning study of land use and the urban heat island distribution pattern, the spatial zoning strategy of controlling urbanization intensity based on the urban climate system is proposed. This research will guide the integration of the urbanization spatial structure and urban climate system toward rational development in Shanghai city.

scholarly journals ANALYZING LAND USE PATTERN CHANGES IN MUKIM PENGERANG, JOHOR, MALAYSIA

2018 ◽  
Vol 5 (2) ◽  
pp. 229
Author(s):  
Noordini Binti Che Man ◽  
Anis Farhan Binti Salihin
Keyword(s):  
Land Use ◽  
Diversity Index ◽  
Rapid Development ◽  
Urban Land Use ◽  
Ecological Impacts ◽  
Landscape Patterns ◽  
Edge Density ◽  
Spatiotemporal Pattern ◽  
Land Use Pattern ◽  
Use Pattern

Urbanization and urban land-use transition have a competitive environment to ensure and provide good facilities for citizen benefit. The landscape patterns resulting from urbanization effect processes at local, regional, and global scales. Quantifying the spatiotemporal pattern of urbanization is important for understanding its ecological impacts and can provide basic information for appropriate decision-making. The growth of urbanization in Mukim Pengerang, Johor, has undergone rapid changes in agriculture, settlements, townships and various activities. The changes of land use take place in Mukim Pengerang due to the rapid economic development, especially in industrializations which are Refinery and Petrochemical Integrated Development (RAPID) project and Pengerang Integrated Petroleum Complex (PIPC). The industrialization boosts the growth in land property and commercial which progressing in rapid development since the year 2012, in resulting whether it can give good, bad or both impact to the human and surrounding. Therefore, the main aim of this paper is to quantify the changes in landscape pattern or land use pattern between the year 2008 and 2017 occurred in Mukim Pengerang. In monitoring the spatial pattern changes, and the changes of landscape structure, the metrics landscape were analyzed with determination of the Shanon Diversity Index (SHDI), the number of patches (NP), Edge Density (ED) and Total Edge (TE) in the period of 8 years. The results show that the changes occurred with the three types of land use showed significant changes in the types of land use which are forest, agricultural and built-up area. The result of SHDI analysis shows the increment value between the year 2008 and 2017. This situation illustrates that the higher value of SHDI for an area, resulting in the higher level of land use. This is because the growing pattern of land use is reflected by a large number of patches due to the diversification of land use activities in the area. As a result, from the metrics statistics test verifies there was a significant change in land use that took place within 8 years.

The Study on Feedback Respone of Urban Land Use

2013 ◽  
Vol 368-370 ◽  
pp. 209-213
Author(s):  
Nan Zhang Wu ◽  
Yu Feng Ho ◽  
Ching I Wu
Keyword(s):  
Land Use ◽  
Rapid Development ◽  
Urban Land ◽  
Urban Land Use ◽  
System Thinking ◽  
Development Theory ◽  
Technology Industry ◽  
Land Use System ◽  
Resource Exhaustion ◽  
System Variables

The rapid development of technology, industry, and civilization and the improper land production in the urban artificial ecosphere have led to severe environmental pollution and resource exhaustion. Reviewing the highly ordered and highly dynamic urban use operation mechanism is necessary for improving urban sustainable development. We used several methods based on urban ecology and sustainability of urban development theory, considered urban use as a system, and analyzed the urban land use system in terms of operation principle and the mechanism of society, economy, and environmental systems through system thinking. We also studied the causal feedback relationships of the urban land use system with system variables and divided it into five subsystems, namely, urban population, land use, industry economy, transportation, environmental ecology. We then constructed a feedback flow graph of the index and the circular operation of the common drive system to characterize effectively the state of urban land.

scholarly journals Satellite Image-Based Methods of Spatiotemporal Analysis on Sustainable Urban Land Use Change and the Driving Factors: A Case Study in Caofeidian and the Suburbs, China

2019 ◽  
Vol 11 (10) ◽  
pp. 2927 ◽  
Author(s):  
Guang Yang ◽  
Sara Chao ◽  
Jin Yeu Tsou ◽  
Yuanzhi Zhang
Keyword(s):  
Land Use ◽  
Sustainable Development ◽  
Rapid Development ◽  
Spatiotemporal Analysis ◽  
Urban Land ◽  
Urban Land Use ◽  
Driving Factors ◽  
Target Area ◽  
Coastal Cities ◽  
The Impact

As a typical rapid-development seaport area in coastal cities, such as Caofeidian, the study on the spatiotemporal changes of urban land use and its surrounding rural areas is valuable and significant in reference to the future urban planning and land policies in similar coastal areas of China or other countries. Based on satellite images, this research processes images in different years for summarizing the changes of vegetation, urban areas, and water areas in Caofeidian and the suburbs. This research aims to summarize the experience of the coastal city in the process of sustainable development by analyzing the dynamic trends and driving factors of land use spatial and temporal changes in the target area so that it provides a reference for the long-term development of the city. Meanwhile, it also hopes to give support for refining and improving the spatiotemporal analysis method for sustainable urban land use through the experiment. Due to the appearance of the results of the abnormal data, in the experiment process, this article adopts a comparative experiment to avoid the error of the analysis result and to find out the reason. The results show that the urban area for construction increased rapidly in the past twenty years, which is mainly affected by factors, such as economic development, policy guidance, environmental awareness, and environmental protection measures, especially guided by policies. Thus, coastal cities should stretch the planning of sustainable development from the three aspects combining with local characteristics. Besides, phenological phenomena and crops harvest time tremendously affect the images and calculation. The selection of remotely-sensed images should fully consider the characteristics of urban and rural locations, especially the impact of local phenological phenomena. The results of the analysis provide reference value and support for sustainable urban land management and development in the study area and other coastal cities.

scholarly journals How to Perceive the Trade-Off of Economic and Ecological Intensity of Land Use in a City? A Functional Zones-Based Case Study of Tangshan, China

Land ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 551
Author(s):  
Wencang Shen ◽  
Jianjun Zhang ◽  
Xiangli Zhou ◽  
Shengnan Li ◽  
Xiaoli Geng
Keyword(s):  
Land Use ◽  
Evaluation System ◽  
Rapid Development ◽  
Urban Land Use ◽  
Theil Index ◽  
Rapid Urbanization ◽  
Trade Off ◽  
Economic Output ◽  
Different Types ◽  
Functional Zones

China, in a rapid urbanization process, is accompanied by the expansion of built-up land, population accumulation, and intensive land investment, while the improvement of the urban environment cannot keep up with the population and economic density growth. Therefore, the purpose of this paper is to discuss the balance between urban land use economic intensity (built-up area density, population density, land price) and ecological intensity (the depth, breadth, and integration of ecological spaces) in Tangshan. From the perspective of functional zones (FZs), the trade-off of economic and ecological intensity of different types of land use is detailed from the evaluation system. Finally, this paper explores a common intensive development model for different FZs to reach both reasonable economic and ecological purposes in Tangshan. The upshot indicates that the economic and ecological intensity of all FZs in Tangshan follows an opposite spatial distribution, and different types of FZ own their characteristics. The Gini index and Theil index for measuring the typical FZ indicate the unbalanced state between ecological spaces and population in residential areas. To sum up, a resource-based city, such as Tangshan, in the rapid development stage of urbanization tends to pay more attention to economic output and neglect ecological benefits.

scholarly journals URBAN LAND USE CHANGE AND THE LANGAT BASIN ECOSYSTEM HEALTH

2006 ◽  
Vol 2 (1) ◽  
Author(s):  
Shaharudin Idrus ◽  
Abdul Hadi Samad
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Ecosystem Health ◽  
Rapid Development ◽  
Land Use Changes ◽  
Urban Land ◽  
Urban Land Use ◽  
Capital City ◽  
Klang Valley ◽  
The Impact

The paper discusses over four decades of urban land use changes in the Langat River Basin in response to rapid development impulses that flowed from the more developed Klang Valley where Kuala Lumpur, the Malaysian capital city is situated. It proceeds to look into the impact of those changes on the ecosystem health of the basin. Federal development policies, strategies, programs and activities have transformed the basin from an industrial agricultural basin into an urbanized area. Being contiguous to the Klang Valley, the basin rose over the decades to be a choice location for not only foreign direct investment to produce manufactured products for export but also services and educational. The paper also discusses the status of the Langat Basin ecosystem health. The change to the land use has indeed impacted on the basin ecosystem health. Using GIS, land use changes in the basin over the decades were analysed to reveal the persistent direction of change. It is clear that the trend of land use change in the Langat Basin is the conversion from one type of land use to developing urbanised and full urban areas. What is implied by the changes are indicators that can be derived to show the sustainability of the ecosystem in the Langat Basin such as river flood, mud flood, land slide, etc.

scholarly journals Sensoriamento Remoto e Estudos de Clima Urbano

2021 ◽  
Vol 25 (2) ◽  
pp. 195-199
Author(s):  
Mariane Batista de Lima Moraes Brandão Campos ◽  
Victor Hugo de Morais Danelichen
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Air Temperature ◽  
Urban Climate ◽  
Remote Sensing Data ◽  
Urban Land Use ◽  
Air Humidity ◽  
Land Use Patterns ◽  
Sparse Vegetation ◽  
Use Patterns

Em regiões onde a rede meteorológica não apresenta uma cobertura satisfatória o uso do sensoriamento remoto se apresenta como uma técnica eficaz para estudo ambiental, possibilitando examinar a métrica dos padrões de uso do solo, bem como análises espaciais e temporais do clima nas cidades. Dessa forma, este trabalho busca analisar a produção científica sobre as técnicas de predição de temperatura e umidade do ar a partir de dados de sensoriamento remoto. Foi realizada uma análise bibliográfica e documental em consultas à base de pesquisa da Scopus (Elseivier) com a seleção final de 15 artigos que possuem relação direta com o conteúdo da pesquisa e enfatizam o estudo de clima urbano pelos padrões de uso do solo urbano, analisando-se dados obtidos por meio de sensores orbitais de satélites como os da série Landsat. O resultado da pesquisa aponta para o uso da vegetação como importante recurso de mitigação dos efeitos negativos do clima na cidade. Modelos matemáticos estão sendo aprimorados para obtenção de temperatura do ar com base em dados de temperatura de superfície, uma vez que ambas variáveis possuem uma forte correlação. Os índices espectrais NDMI e NDWI são úteis na verificação de dados sobre umidade do ar, porém pouco consistentes em locais de vegetação nula ou esparsa. Identificou-se o sensoriamento remoto como ferramenta promissora inclusive na análise de mesoclimas e microclimas urbanos, sendo importante a continuidade de pesquisas e estudos que identifiquem suas potencialidades. Palavras-chave: Umidade do Ar. Sensores Orbitais. Temperatura do Ar. Abstract In regions where the meteorological network does not have a satisfactory coverage or the use of remote sensing, it presents itself as an effective technique for environmental studies, allowing the metrics evaluation of land use patterns as well as spatial and temporal analyzes of the climate in cities. In this way, this research aims to analyze the scientific production on the temperature and humidity techniques prediction from remote sensing data. A bibliographic and documentary analysis was carried out in consultation with the Scopus (Elseivier) research base with a final selection of 15 scientific articles that directly relate to the research content and emphasize the study of urban climate by urban land use patterns, analyzing data obtained using satellite orbital sensors such as the Landsat series. The result of the research points to the use of vegetation as an important resource to mitigate the negative effects of climate in the city. Mathematical models are being improved to obtains air temperature based on surface temperature data, since both variables have a strong correlation. The NDMI and NDWI spectral indices are useful in verifying data on air humidity, but they are not very consistent in areas of null or sparse vegetation. Remote sensing has been identified as a promising tool, including in the analysis of urban mesoclimates and microclimates, and it is important to continue research and studies that identify its potential. Keywords: Air Humidity. Orbital Sensors. Air Temperature.

scholarly journals Delineating Urban Functional Zones Using U-Net Deep Learning: Case Study of Kuancheng District, Changchun, China

Land ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1266
Author(s):  
Yuewen Yang ◽  
Dongyan Wang ◽  
Zhuoran Yan ◽  
Shuwen Zhang
Keyword(s):  
Land Use ◽  
Deep Learning ◽  
Land Use Planning ◽  
Field Survey ◽  
Rapid Development ◽  
Central City ◽  
Urban Land Use ◽  
Functional Types ◽  
High Resolution Satellite Images ◽  
Functional Zones

Scientific functional zone planning is the key to achieving long-term development goals for cities. The rapid development of remote sensing technology allows for the identification of urban functional zones, which is important since they serve as basic spatial units for urban planning and functioning. The accuracy of three methods—kernel density estimation, term frequency-inverse document frequency, and deep learning—for detecting urban functional zones was investigated using the Gaode points of interest, high-resolution satellite images, and OpenStreetMap. Kuancheng District was divided into twenty-one functional types (five single functional types and twenty mixed ones). The results showed that an approach using deep learning had a higher accuracy than the other two methods for delineating four out of five functions (excluding the commercial function) when compared with a field survey. The field survey showed that Kuancheng District was progressing towards completing the goals of the Land-Use Plan of the Central City of Changchun (2011–2020). Based on these findings, we illustrate the feasibility of identifying urban functional areas and lay out a framework for transforming them. Our results can guide the adjustment of the urban spatial structure and provide a reference basis for the scientific and reasonable development of urban land-use planning.

Identifying key determinants of ecosystem health in the middle reaches of Yangtze River Urban Agglomerations, China

2021 ◽  
Author(s):  
Fengjian Ge ◽  
Jiangfeng Li ◽  
Wanxu Chen ◽  
Shubing Ouyang ◽  
Peng Han ◽  
...  
Keyword(s):  
Land Use ◽  
Yangtze River ◽  
Ecosystem Health ◽  
Rapid Development ◽  
Central Area ◽  
Urban Land Use ◽  
Construction Land ◽  
Urban Agglomerations ◽  
The Impact ◽  
City Group

<div><span>With the rapid development of urbanization in China, urban circles and urban agglomerations are gradually formed among different cities, which in turn has brought large pressure to the ecological environment. As an important monitoring index for evaluating the sustainable development of cities, quantified evaluation on the eosystem health is lacked for urban agglomerations. In this study, ecosystem health was assessed based on the framework of ecosystem vigor, organization, resilience, and services (VORS) in the Middle Reaches of the Yangtze River Urban Agglomerations (MRYRUA) in 2000, 2005, 2010, and 2015 with county as research units. Using GeoDetector to quantitatively analyze the impact of seven factors (including the proportion of construction land, forest land, and water, land use degree, population, average annual precipitation, and digital elevation model (DEM)) on ecosystem health in different periods. The results showed that: (1) There were significant differences in the spatial distribution of ecosystem health. The ecosystem health in the central area of Wuhan Metropolis, Changsha-Zhuzhou-Xiangtan City Group, and Poyang Lake City Group were significantly lower than the surrounding areas; (2) From the time scale, the research units of ordinary well level gradually develop to relatively well and well levels. The research units of relatively weak and weak level remain relatively stable. (3) Land use degree was the main factor affecting on ecosystem health. Moreover, there were interactions between different factors affecting. The impact of factors on ecosystem health were bi-enhanced or nonlinear enhanced. (4) The impacts of the proportion of construction land on ecosystem health had become greater over the time, and risen from fourth in 2000 to second in 2015. Therefore, a reasonable layout of urban land use planning has an important impact on the ecosystem health.</span></div>

scholarly journals URBAN LAND USE CHANGE AND THE LANGAT BASIN ECOSYSTEM HEALTH

2006 ◽  
Vol 2 ◽  
Author(s):  
Shaharudin Idrus ◽  
Abdul Hadi Samad
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Ecosystem Health ◽  
Rapid Development ◽  
Land Use Changes ◽  
Urban Land ◽  
Urban Land Use ◽  
Capital City ◽  
Klang Valley ◽  
The Impact

The paper discusses over four decades of urban land use changes in the Langat River Basin in response to rapid development impulses that flowed from the more developed Klang Valley where Kuala Lumpur, the Malaysian capital city is situated. It proceeds to look into the impact of those changes on the ecosystem health of the basin. Federal development policies, strategies, programs and activities have transformed the basin from an industrial agricultural basin into an urbanized area. Being contiguous to the Klang Valley, the basin rose over the decades to be a choice location for not only foreign direct investment to produce manufactured products for export but also services and educational. The paper also discusses the status of the Langat Basin ecosystem health. The change to the land use has indeed impacted on the basin ecosystem health. Using GIS, land use changes in the basin over the decades were analysed to reveal the persistent direction of change. It is clear that the trend of land use change in the Langat Basin is the conversion from one type of land use to developing urbanised and full urban areas. What is implied by the changes are indicators that can be derived to show the sustainability of the ecosystem in the Langat Basin such as river flood, mud flood, land slide, etc.

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