Environmental Impacts of Urban Sprawl in Surat, Gujarat: An Examination Using Landsat Data

Mukherjee, Falguni

doi:10.1007/s12524-022-01509-8

Cited by 6 publications

(2 citation statements)

References 58 publications

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“…Relevant studies have shown that the built-up central urban area of Zhengzhou is expanding at a scale of nearly 70 km 2 every year [66], which means that Zhengzhou's fundamental rapid population growth and urban expansion will not change. Urban expansion must come at the expense of encroaching on other land resources, which, in turn, drives regional land use changes [67]. Our research shows that 83.85% of the land used for urban expansion in Zhengzhou from 2000 to 2020 came from cultivated land, directly threatening food security and hindering sustainable agricultural development.…”

Section: Urban Expansion-exacerbated Lucmentioning

confidence: 88%

Coupled MOP and PLUS-SA Model Research on Land Use Scenario Simulations in Zhengzhou Metropolitan Area, Central China

et al. 2023

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Land use simulations are critical in predicting the impact of land use change (LUC) on the Earth. Various assumptions and policies influence land use structure and are a key factor in decisions made by policymakers. Meanwhile, the spatial autocorrelation effect between land use types has rarely been considered in existing land use spatial simulation models, and the simulation accuracy needs to be further improved. Thus, in this study, the driving mechanisms of LUC are analyzed. The quantity demand and spatial distribution of land use are predicted under natural development (ND), economic development (ED), ecological protection (EP), and sustainability development (SD) scenarios in Zhengzhou based on the coupled Multi-Objective Programming (MOP) model and the Patch-generating Land Use Simulation model (PLUS) considering Spatial Autocorrelation (PLUS-SA). We conclude the following. (1) The land use type in Zhengzhou was mainly cultivated land, and 83.85% of the land for urban expansion was cultivated land from 2000 to 2020. The reduction in forest from 2010 to 2020 was less than that from 2000 to 2010 due to the implementation of the policy in which farmland is transformed back into forests. (2) The accuracy of PLUS-SA was better than that of the traditional PLUS and Future Land Use Simulation (FLUS) models, and its Kappa coefficient, overall accuracy, and FOM were 0.91, 0.95, and 0.29, respectively. (3) Natural factors (temperature, precipitation, and DEM) contributed significantly to the expansion of cultivated land, and the increase in forest, grass, and construction land was greatly affected by socioeconomic factors (population, GDP, and proximity to town). (4) The land use structure will be more in line with the current requirements for sustainable urban development in the SD scenario, and the economic and ecological benefits will increase by 0.75 × 104 billion CNY and 1.71 billion CNY, respectively, in 2035 compared with those in 2020. The PLUS-SA model we proposed had higher simulation accuracy in Zhengzhou Compared with the traditional PLUS and FLUS models, and our research framework can provide a basis for decision-makers to formulate sustainable land use development policies to achieve high-quality and sustainable urban development.

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Section: Urban Expansion-exacerbated Lucmentioning

confidence: 88%

Coupled MOP and PLUS-SA Model Research on Land Use Scenario Simulations in Zhengzhou Metropolitan Area, Central China

et al. 2023

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“…In the study of urban expansion, many scholars are studying the structure of cities, such as Yu et al (2022), who proposed a framework of an assessment process of polycentric structure based on spatial distribution and interaction [45], but did not propose how the development and change in urban structure caused changes in the local ecological environment. Camille et al (2020) started to study the changes in the ecological environment with the change in urban structure [46], and found that the type of urban structure influences the environmental conditions of cities, especially the irrational expansion of cities, which may seriously lead to the deterioration of the urban ecological environment [47,48].…”

Section: Selection Of Evaluation Indexmentioning

confidence: 99%

Assessment of the Urban Expansion and Its Impact on the Eco-Environment—A Case Study of Hefei Municipal Area

et al. 2022

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With the advancement of urbanization, the ecological environmental changes caused by the continuous expansion of cities have become a major concern. Thus, this study is based on a remote sensing image map of Hefei city from 1984 to 2020, which is now in the process of rapid development. We constructed an index system with ecological land, ecosystem service value, ecological environment quality, urban land expansion coefficient, urban heat island rate index, total pollutant emissions, ecological pressure, and ecological deficit, and then evaluated the ecological environment of Hefei city with the help of the entropy weight comprehensive evaluation method. The results show that (1) in the positive evaluation index, the ecological land area was reduced to half of the original area, the ecological service value was reduced by 0.37 times its initial value, and the eco-environmental index was <35 and still decreasing. (2) In the negative evaluation index, the urban heat island ratio index increased by nearly 10 times its initial value, the total emission of various pollutants increased by 6.64 times its initial value, the ecological deficit increased year by year after 1999, and the ecological pressure in 2020 increased to 3 times that in 1999. (3) The overall environmental score of the Hefei urban area has decreased by 48.6 times its initial value. The values of positive evaluation indexes are decreasing, whereas the values of negative evaluation indexes are increasing, and both these items are moving backward, leading to the decrease in the comprehensive ecological environmental score. It can be noticed that the urban expansion of Hefei has had a severe impact on the ecological environment, resulting in the continuous reduction in the ecological land area, a serious urban heat island effect, and continuous weakening of regional ecological service functions. The study results can be used for reference in alleviating the impacts of urban expansion on the environment, promoting the optimization of the urban landscape and the sustainable development of the social economy and environment.

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Changing urban land types and its locational impact on groundwater resources: a case study on Megacity Kolkata

Bose,

Mazumdar,

Basu

2024

Environ Dev Sustain

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Environmental Impacts of Urban Sprawl in Surat, Gujarat: An Examination Using Landsat Data

Cited by 6 publications

References 58 publications

Coupled MOP and PLUS-SA Model Research on Land Use Scenario Simulations in Zhengzhou Metropolitan Area, Central China

Coupled MOP and PLUS-SA Model Research on Land Use Scenario Simulations in Zhengzhou Metropolitan Area, Central China

Assessment of the Urban Expansion and Its Impact on the Eco-Environment—A Case Study of Hefei Municipal Area

Changing urban land types and its locational impact on groundwater resources: a case study on Megacity Kolkata

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