scholarly journals Evaluation and Factor Analysis of the Intensive Use of Urban Land Based on Technical Efficiency Measurement—A Case Study of 38 Districts and Counties in Chongqing, China

2020 ◽  
Vol 12 (20) ◽  
pp. 8623
Author(s):  
Jingyi Wang ◽  
Kaisi Sun ◽  
Jiupai Ni ◽  
Deti Xie
Keyword(s):  
Land Use ◽  
Factor Analysis ◽  
Panel Data ◽  
Indicator System ◽  
Urban Land ◽  
Urban Land Use ◽  
Efficiency Measurement ◽  
Technical Inefficiency ◽  
Intensive Use ◽  
Intensive Land Use

Reasonable evaluation of the intensive urban land use has emerged as an important issue and hot topic for urban development. This paper aims to construct a unified framework for evaluating the intensive use of urban land and analyzing its influence channels. It combines the advantages of the approach of the indicator system and that of efficiency measurement, and provides an empirical test to apply this analytical framework using the panel data of 38 districts and counties in Chongqing, China, ranging from 2009 to 2018. To achieve our goals, we used the panel data model and stochastic frontier analysis (SFA) model with decomposed technical inefficiency. Our results show that: (1) the level of intensive use of urban land in all districts and counties of Chongqing is steadily increasing, and the gap among regions is narrowing, (2) all districts and counties of Chongqing face severe and increasing difficulty in improving their intensive urban land use, and, (3) currently, the degree of external dependence is not a stable influential factor for land-use efficiency and intensive potential in these districts and counties, and improving the land use structure, increasing population density, strengthening fiscal expenditure on education, and promoting transportation convenience can markedly reduce land use inefficiency and simultaneously increase intensive land use. In conclusion, the framework for evaluating intensive use of urban land based on the SFA model with decomposed technical inefficiency can better integrate intensive land-use evaluation and the factor analysis process, and retain the scalability of factor analysis. For all districts and counties in Chongqing, we clarify several effective channels to promote the intensive use of urban land, which provides reference and technical support for formulating land policies.

scholarly journals Examining the Coupling Coordinated Relationship between Urban Industrial Co-Agglomeration and Intensive Land Use

Land ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 499
Author(s):  
Qunxi Gong ◽  
Gengxuan Guo ◽  
Sipan Li ◽  
Xuedong Liang
Keyword(s):  
Land Use ◽  
Metropolitan Area ◽  
Structural Adjustment ◽  
Urban Land ◽  
Urban Land Use ◽  
Spatial Characteristics ◽  
Coordination Model ◽  
Dynamic Relationship ◽  
Increase Rate ◽  
Intensive Land Use

Exploring the dynamic relationship and coupling coordination between urban industrial co-agglomeration and intensive land use is vital to ensure high-quality urban development. Based on an industrial co-agglomeration model, a revised intensive land use model, and a coupling coordination model, this paper comprehensively measured the urban industrial co-agglomeration and intensive land use coupling coordination in eight cities in the Chengdu metropolitan area from 2004 to 2018. It was found that despite the structural adjustment of the secondary and tertiary industries during the study period, the industrial co-agglomeration in the Chengdu metropolitan area fluctuated, the intensive urban land use had spatial characteristics that were decreasing from the center to the periphery, and while the general coupling coordination level was increasing, the increase rate in each city was different. The coupling coordination between the urban industry co-agglomeration and the intensive land use was found to have “low-high-low” spatial characteristics from the southwest to the northeast of the Chengdu metropolitan area, which revealed the core position of Chengdu. Suggestions are provided to improve the industrial co-agglomeration and intensive urban land use coupling coordination.

Study of Urban Land Intensive Use Dynamic and Spatial Difference in Anhui Province

2011 ◽  
Vol 347-353 ◽  
pp. 3597-3602
Author(s):  
Hai Min Su ◽  
Ai Xia He ◽  
Gang Fang
Keyword(s):  
Land Use ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Urban Land ◽  
Anhui Province ◽  
Huaihe River ◽  
Ecological Benefit ◽  
Intensive Use ◽  
The Huaihe River ◽  
Intensive Land Use

This paper established the comprehensive evaluation system of urban land intensive use from land use investment and output benefit, land use intensity and land use ecological benefit etc. Based onthe statistical data of land use, using principal component analysis, this paper made comprehensive evaluation on the intensive land-use level of 17 cities in Anhui Province from 2004 to 2009 , analyzed the changing situation in space and time. The results showed: (1)The level of urban land intensive use of Anhui Province constantly improved from 2004 to 2009, increasing more than 2 times of the intensive land-use level; (2)the level of urban land intensive use had significant regional differences, the south of the Huaihe River cities having the higher level, and the north of the Huaihe River cities having the lower level; (3)economic development level is the most important external factor affecting the level of urban land intensive use. The level of urban land intensive use is higher in developed areas, such as Hefei , Ma Anshan and Wuhu than other areas.

scholarly journals How to Measure Urban Land Use Intensity? A Perspective of Multi-Objective Decision in Wuhan Urban Agglomeration, China

2018 ◽  
Vol 10 (11) ◽  
pp. 3874 ◽  
Author(s):  
Jun Yang ◽  
Gui Jin ◽  
Xianjin Huang ◽  
Kun Chen ◽  
Hao Meng
Keyword(s):  
Land Use ◽  
Urban Land ◽  
Urban Land Use ◽  
Urban Agglomeration ◽  
Land Use Intensity ◽  
Development Zone ◽  
Multi Objective ◽  
Intensive Use ◽  
Optimal Intensity ◽  
Wuhan Urban Agglomeration

Urban land intensive use is an important part of regional planning and plays an important role in the sustainable development of cities. However, the research on how to measure urban land use intensity is still controversial. This paper gives a perspective of multi-objective decision to explore the criterion of urban land use intensity in the process of urbanization. The theory of factor substitution was applied to analyze the mechanism of urban land intensive use in different urbanization stage. Additionally, the matching degree model (MDM), curve estimation model, and multi-objective programming model were employed in the case study of Wuhan urban agglomeration to give a multi-objective decision on urban land intensive use. The results show that the level of urban land intensive use lagging behind the level of urbanization development in more than 60% of the counties. When the level of urbanization is less than 30%, 30–70% and greater than 70%, the optimal intensity of urban land use characterized by fixed investments of unit land is 2.6252, 4.6132, and 6.7648 million RMB respectively. Based on optimal intensity, the counties in Wuhan urban agglomeration were divided into key development zone and optimized development zone. Finally, different management strategies were designed for different zones for urban land intensive use.

Applying AHP and Maximal Value Normalization to Evaluate Intensity of Urban Land Use in Sujiatun District, Shenyang City

2013 ◽  
Vol 709 ◽  
pp. 911-914
Author(s):  
Xiao Fan Zhao
Keyword(s):  
Land Use ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Use Intensity ◽  
Shenyang City ◽  
Land Use Efficiency ◽  
Intensive Use ◽  
Use Efficiency

In order to explore the intensive extent of urban land use in Sujiatun District of Shenyang City, the AHP and maximal value normalization were taken to analyze the level of intensive use of urban land. Results indicated that land use is extensive and land functions are mixed in the study area. Land use intensity should be strengthened and more land should be reserved for construction so as to improve the land use efficiency.

Physical, Chemical, and Biological Methods and Data from the Urban Land-Use-Gradient Study, Des Plaines and Fox River Basins, Illinois, 1999-2001

2001 ◽  
Author(s):  
Debbie L. Adolphson ◽  
Terri L. Arnold ◽  
Faith A. Fitzpatrick ◽  
Mitchell A. Harris ◽  
Kevin D. Richards ◽  
...  
Keyword(s):  
Land Use ◽  
River Basins ◽  
Urban Land ◽  
Urban Land Use ◽  
Physical Chemical ◽  
Biological Methods ◽  
Fox River

THE IMPACT OF DIFFERENT URBAN LAND USE TYPES ON AIR POLLUTION IN THE MEGACITY OF SÃO PAULO

2020 ◽  
Vol 7 (1) ◽  
pp. 91
Author(s):  
Júlio Barboza Chiquetto ◽  
Maria Elisa Siqueira Silva ◽  
Rita Yuri Ynoue ◽  
Flávia Noronha Dutra Ribieiro ◽  
Débora Souza Alvim ◽  
...  
Keyword(s):  
Land Use ◽  
Air Pollution ◽  
Urban Land ◽  
Sao Paulo ◽  
Urban Land Use ◽  
São Paulo ◽  
Land Use Types ◽  
The Impact

A poluição do ar é influenciada por fatores naturais e antropogênicos. Quatro pontos de monitoramento (veicular, comercial, residencial e background urbano (BGU))da poluição do ar em São Paulo foram avaliados durante 16 anos, revelando diferenças significativas devidoao uso do solo em todas as escalas temporais. Na escala diurna, as concentrações de poluentes primários são duas vezes mais altas nos pontos veicular e residencial do que no ponto BGU, onde a concentração de ozonio (O3) é 50% mais alta. Na escala sazonal, as concentrações de monóxido de carbono(CO) variaram em 80% devido ao uso do solo, e 55% pela sazonalidade.As variações sazonais ede uso do solo exercem impactos similares nas concentrações de O3 e monóxido de nitrogênio (NO). Para o material particulado grosso (MP10) e o dióxido de nitrogênio(NO2), as variações sazonais são mais intensas do que as por uso do solo. Na série temporal de 16 anos, o ponto BGU apresentou correlações mais fortes e significativas entre a média mensal de ondas longas (ROL) e o O3 (0,48) e o MP10 (0,37), comparadas ao ponto veicular (0,33 e 0,22, respectivamente). Estes resultados confirmam que o uso do solo urbano tem um papel significativo na concentração de poluentes em todas as escalas de análise, embora a sua influência se torne menos pronunciada em escalas maiores, conforme a qualidade do ar transita de um sistema antropogênico para um sistema natural. Isto poderá auxiliar decisões sobre políticas públicas em megacidades envolvendo a modificação do uso do solo.

IMPACTS OF URBAN LAND USE ON CRIME PATTERNS THROUGH GIS APPLICATION

2013 ◽  
Vol 11 (2) ◽  
Author(s):  
Ahmad Nazri Muhamad Ludin ◽  
Norsiah Abd. Aziz ◽  
Nooraini Hj Yusoff ◽  
Wan Juliyana Wan Abd Razak
Keyword(s):  
Land Use ◽  
Drug Abuse ◽  
Land Use Planning ◽  
Urban Areas ◽  
Spatial Relationship ◽  
Police Department ◽  
Strong Relationship ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Use Patterns

Land use planning plays a crucial role in creating a balance between the needs of society, physical development and the ecosystem. However, most often poor planning and displacement of land uses particularly in urban areas contribute to social ills such as drug abuse and criminal activities. This research explains the spatial relationship of drug abuse and other criminal activities on urban land use planning and their implications on the society at large. Spatial statistics was used to show patterns, trends and spatial relationships of crimes and land use planning. Data on crime incidents were obtained from the Royal Malaysia Police Department whilst cases of drug abuse were collected from the National Anti-Drug Agency (AADK). Analysis of the data together with digital land use maps produced by Arnpang Jaya Municipal Council, showed the distribution of crime incidents and drug abuse in the area. Findings of the study also indicated that, there was a strong relationship between petty crimes, drng abuse and land use patterns. These criminal activities tend to concentrate in residential and commercial areas of the study area.

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