Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China
Over the past decades, cities worldwide have experienced a sharp decline in urban ecological quality (UEQ) due to rapid urbanization accompanied. However, the spatiotemporal dynamics of UEQ and its associated multi-scale impacts of natural and human factors on UEQ changes were still unknown. Thus, b...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23006052 |
| _version_ | 1797802862631190528 |
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| author | Mingxing Liu Minfei Ma Jianhong Liu Xiaoqing Lu Ziyue Dong Jinnuo Li |
| author_facet | Mingxing Liu Minfei Ma Jianhong Liu Xiaoqing Lu Ziyue Dong Jinnuo Li |
| author_sort | Mingxing Liu |
| collection | DOAJ |
| description | Over the past decades, cities worldwide have experienced a sharp decline in urban ecological quality (UEQ) due to rapid urbanization accompanied. However, the spatiotemporal dynamics of UEQ and its associated multi-scale impacts of natural and human factors on UEQ changes were still unknown. Thus, based on the Remote Sensing-based Ecological Index, Random Forest regression, and Geographical Detector, taking the downtown area of Xi’an City, China, as an example, we revealed the spatiotemporal dynamics of UEQ from 2000 to 2019 and quantified the impacts of 19 natural and human factors on UEQ changes at 30 scales. Results showed that 1) from 2000 to 2019, the UEQ in the downtown area of Xi'an experienced a sharp decrease at first, and then gradually recovered. But the recovered UEQ was much lower than the lost UEQ, indicating the big loss of UEQ. 2) The identified driving factors had significant impacts on local UEQ within 1300 m. 3) Elevation, temperature, precipitation, slope, and GDP were more important than other factors in impacting UEQ changes. 4) Natural conditions and climate change had the greatest impact on the regional UEQ, followed by social changes and urban built environment. Altogether, our results revealed the complex impacts of natural-anthropogenic factors on UEQ changes, including impact scale, impact strength, and impact interaction, thus can assist local government in optimizing urban planning and improving livable cities. |
| first_indexed | 2024-03-13T05:13:13Z |
| format | Article |
| id | doaj.art-90be94d065eb4a7ca007b6e6b3ef8370 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-03-13T05:13:13Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-90be94d065eb4a7ca007b6e6b3ef83702023-06-16T05:08:54ZengElsevierEcological Indicators1470-160X2023-09-01153110463Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, ChinaMingxing Liu0Minfei Ma1Jianhong Liu2Xiaoqing Lu3Ziyue Dong4Jinnuo Li5College of Urban and Environmental Science, Northwest University, Xi’an 710127, China; School of Urban Design, Wuhan University, Wuhan 430070, ChinaCollege of Urban and Environmental Science, Northwest University, Xi’an 710127, ChinaCollege of Urban and Environmental Science, Northwest University, Xi’an 710127, China; Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Xi’an 710127, China; Shaanxi Yellow River Research Institute, Xi'an, Shaanxi 710127, China; Corresponding author at: College of Urban and Environmental Science, Northwest University, Xi’an 710127, China.College of Urban and Environmental Science, Northwest University, Xi’an 710127, ChinaCollege of Urban and Environmental Science, Northwest University, Xi’an 710127, ChinaCollege of Urban and Environmental Science, Northwest University, Xi’an 710127, ChinaOver the past decades, cities worldwide have experienced a sharp decline in urban ecological quality (UEQ) due to rapid urbanization accompanied. However, the spatiotemporal dynamics of UEQ and its associated multi-scale impacts of natural and human factors on UEQ changes were still unknown. Thus, based on the Remote Sensing-based Ecological Index, Random Forest regression, and Geographical Detector, taking the downtown area of Xi’an City, China, as an example, we revealed the spatiotemporal dynamics of UEQ from 2000 to 2019 and quantified the impacts of 19 natural and human factors on UEQ changes at 30 scales. Results showed that 1) from 2000 to 2019, the UEQ in the downtown area of Xi'an experienced a sharp decrease at first, and then gradually recovered. But the recovered UEQ was much lower than the lost UEQ, indicating the big loss of UEQ. 2) The identified driving factors had significant impacts on local UEQ within 1300 m. 3) Elevation, temperature, precipitation, slope, and GDP were more important than other factors in impacting UEQ changes. 4) Natural conditions and climate change had the greatest impact on the regional UEQ, followed by social changes and urban built environment. Altogether, our results revealed the complex impacts of natural-anthropogenic factors on UEQ changes, including impact scale, impact strength, and impact interaction, thus can assist local government in optimizing urban planning and improving livable cities.http://www.sciencedirect.com/science/article/pii/S1470160X23006052Urban ecological qualityRSEIMultiscale analysisDriving forcesRandom forestGeographic detector |
| spellingShingle | Mingxing Liu Minfei Ma Jianhong Liu Xiaoqing Lu Ziyue Dong Jinnuo Li Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China Ecological Indicators Urban ecological quality RSEI Multiscale analysis Driving forces Random forest Geographic detector |
| title | Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China |
| title_full | Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China |
| title_fullStr | Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China |
| title_full_unstemmed | Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China |
| title_short | Quantifying impacts of natural and anthropogenic factors on urban ecological quality changes: A multiscale survey in Xi’an, China |
| title_sort | quantifying impacts of natural and anthropogenic factors on urban ecological quality changes a multiscale survey in xi an china |
| topic | Urban ecological quality RSEI Multiscale analysis Driving forces Random forest Geographic detector |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23006052 |
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