{"title":"马尔达城市增长与环境影响评价:基于Shannon熵和遥感的综合研究","authors":"Lal Mohammad , Jatisankar Bandyopadhyay , Ismail Mondal , Mohamed Mohamed Ouda , Nikhilesh Mondal , Mukhiddin Juliev , Abdulrazak H. Almaliki","doi":"10.1016/j.pce.2025.104021","DOIUrl":null,"url":null,"abstract":"<div><div>Urbanization poses enormous environmental and ecological challenges, making it crucial to strike a balance between urban growth and ecological preservation for the benefit of future generations. This study assesses the spatiotemporal changes and Environmental Impacts of Urbanization (EIU) in the Malda Urban Agglomeration (MUA) areas between 1990 and 2020 using geospatial techniques. Satellite-derived indices, Normalized Difference Built-up Index (NDBI), Normalized Difference Vegetation Index (NDVI), and Land Surface Temperature (LST)—were combined with field-based data to evaluate urbanization trends and their ecological consequences. Shannon's entropy model was employed to assess aerial urban growth during the study period. The relative entropy values were 0.751 in 1990 and 0.814, 0.882, and 0.947 in 2000, 2010, and 2020, respectively, indicating rapid urbanization in the MUA region, where the growth rate of urban expansion was found to be more than four times from the base year, 1990. This study took a different perspective to assess the impacts of urban expansion on environmental effects. The linear regression (LR) model demonstrated a substantial association between population growth and an increase in built-up areas in English Bazar, Old Malda, and MUA, with R<sup>2</sup> values of 0.927, 0.989, and 0.982, respectively. The LR model also revealed that rapid urbanization has significantly impacted environmental conditions (NDBI, LST, and vegetation cover) in the study. Thus, this study demonstrates the impacts of urbanization using Geospatial techniques, which can help policymakers plan for sustainable development (SDGs) and effectively mitigate urban planning and management challenges for a sustainable city environment.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"140 ","pages":"Article 104021"},"PeriodicalIF":3.0000,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Urban growth and environmental impact assessment in Malda: A comprehensive study using Shannon's entropy and remote sensing\",\"authors\":\"Lal Mohammad , Jatisankar Bandyopadhyay , Ismail Mondal , Mohamed Mohamed Ouda , Nikhilesh Mondal , Mukhiddin Juliev , Abdulrazak H. Almaliki\",\"doi\":\"10.1016/j.pce.2025.104021\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Urbanization poses enormous environmental and ecological challenges, making it crucial to strike a balance between urban growth and ecological preservation for the benefit of future generations. This study assesses the spatiotemporal changes and Environmental Impacts of Urbanization (EIU) in the Malda Urban Agglomeration (MUA) areas between 1990 and 2020 using geospatial techniques. Satellite-derived indices, Normalized Difference Built-up Index (NDBI), Normalized Difference Vegetation Index (NDVI), and Land Surface Temperature (LST)—were combined with field-based data to evaluate urbanization trends and their ecological consequences. Shannon's entropy model was employed to assess aerial urban growth during the study period. The relative entropy values were 0.751 in 1990 and 0.814, 0.882, and 0.947 in 2000, 2010, and 2020, respectively, indicating rapid urbanization in the MUA region, where the growth rate of urban expansion was found to be more than four times from the base year, 1990. This study took a different perspective to assess the impacts of urban expansion on environmental effects. The linear regression (LR) model demonstrated a substantial association between population growth and an increase in built-up areas in English Bazar, Old Malda, and MUA, with R<sup>2</sup> values of 0.927, 0.989, and 0.982, respectively. The LR model also revealed that rapid urbanization has significantly impacted environmental conditions (NDBI, LST, and vegetation cover) in the study. Thus, this study demonstrates the impacts of urbanization using Geospatial techniques, which can help policymakers plan for sustainable development (SDGs) and effectively mitigate urban planning and management challenges for a sustainable city environment.</div></div>\",\"PeriodicalId\":54616,\"journal\":{\"name\":\"Physics and Chemistry of the Earth\",\"volume\":\"140 \",\"pages\":\"Article 104021\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-07-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics and Chemistry of the Earth\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1474706525001718\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics and Chemistry of the Earth","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1474706525001718","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Urban growth and environmental impact assessment in Malda: A comprehensive study using Shannon's entropy and remote sensing
Urbanization poses enormous environmental and ecological challenges, making it crucial to strike a balance between urban growth and ecological preservation for the benefit of future generations. This study assesses the spatiotemporal changes and Environmental Impacts of Urbanization (EIU) in the Malda Urban Agglomeration (MUA) areas between 1990 and 2020 using geospatial techniques. Satellite-derived indices, Normalized Difference Built-up Index (NDBI), Normalized Difference Vegetation Index (NDVI), and Land Surface Temperature (LST)—were combined with field-based data to evaluate urbanization trends and their ecological consequences. Shannon's entropy model was employed to assess aerial urban growth during the study period. The relative entropy values were 0.751 in 1990 and 0.814, 0.882, and 0.947 in 2000, 2010, and 2020, respectively, indicating rapid urbanization in the MUA region, where the growth rate of urban expansion was found to be more than four times from the base year, 1990. This study took a different perspective to assess the impacts of urban expansion on environmental effects. The linear regression (LR) model demonstrated a substantial association between population growth and an increase in built-up areas in English Bazar, Old Malda, and MUA, with R2 values of 0.927, 0.989, and 0.982, respectively. The LR model also revealed that rapid urbanization has significantly impacted environmental conditions (NDBI, LST, and vegetation cover) in the study. Thus, this study demonstrates the impacts of urbanization using Geospatial techniques, which can help policymakers plan for sustainable development (SDGs) and effectively mitigate urban planning and management challenges for a sustainable city environment.
期刊介绍:
Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001.
Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers.
The journal covers the following subject areas:
-Solid Earth and Geodesy:
(geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy).
-Hydrology, Oceans and Atmosphere:
(hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology).
-Solar-Terrestrial and Planetary Science:
(solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).