Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city
The development of mining cities has led to changes in land use and the evolution of landscape patterns. Constructing an ecological security evaluation system can reflect the ecological security status of mining city areas and provide planning references for these cities. This study, based on Heihe...
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2024.1488439/full |
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| author | Yu Shi Xiaoxiao Fan Xiaoxiao Fan Haonan Chen Yuhan Kao Meiqi Sun |
| author_facet | Yu Shi Xiaoxiao Fan Xiaoxiao Fan Haonan Chen Yuhan Kao Meiqi Sun |
| author_sort | Yu Shi |
| collection | DOAJ |
| description | The development of mining cities has led to changes in land use and the evolution of landscape patterns. Constructing an ecological security evaluation system can reflect the ecological security status of mining city areas and provide planning references for these cities. This study, based on Heihe City’s land use data from 1980 to 2020, systematically analyzes the spatial and temporal evolution characteristics of land use, landscape patterns, and landscape ecological security levels by constructing a land use transfer matrix and calculating landscape pattern indices and landscape ecological security indices. The results show that: 1) Forest land is the main type of land use in Heihe City, accounting for over 50% of the total area. Land use changes primarily occurred between 2000–2010 and 2010–2020, with the spatial pattern characterized by overall stability and localized dramatic shifts, mainly involving the conversion of forest land to farmland and unused land. 2) From 1980 to 2020, the landscape ecological security pattern in Heihe City improved. Landscape diversity and landscape contagion increased, while landscape fragmentation, the largest patch area, and the average patch area decreased. Land use was optimized overall, but the trend of forest fragmentation became noticeable. 3) Between 1980 and 2020, the landscape ecological security level in Heihe City improved significantly. Driven by ecological restoration policies, the ecological security level in the southern region greatly improved, while the spatial pattern continued to show a trend of lower security in the south and higher security in the north. Specifically, the area proportions of low-security and relatively low-security areas increased by 6.23% and 9.55%, respectively. The spatial clustering of landscape ecological security levels is evident, with high-high value clustering mainly in the north and low-low value clustering mainly in the south. It is necessary to further promote ecological protection in the north to ensure the ecological barrier function, while strengthening ecological restoration in the south to improve ecological security levels. Additionally, continuous macro-policy regulation is needed to maintain long-term ecological security in Heihe City. The ecological security level of mining city landscapes is influenced by economic dependence, policy constraints, and environmental issues. This study can provide guidance for planning improvements in the study area and other mining cities. |
| format | Article |
| id | doaj-art-a8e5409385104438880c351415b3431d |
| institution | Kabale University |
| issn | 2296-665X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Environmental Science |
| spelling | doaj-art-a8e5409385104438880c351415b3431d2024-11-18T06:10:21ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2024-11-011210.3389/fenvs.2024.14884391488439Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe cityYu Shi0Xiaoxiao Fan1Xiaoxiao Fan2Haonan Chen3Yuhan Kao4Meiqi Sun5School of Architecture and Art Design, Hebei University of Technology, Tianjin, ChinaSchool of Architecture and Art Design, Hebei University of Technology, Tianjin, ChinaSchool of Architecture and Art Design, Hebei University of Technology, Key Laboratory of Healthy Human Settlements in Hebei Province, Tianjin, ChinaSchool of Economics, Capital University of Economics and Business, Beijing, ChinaJiangxi University of Finance and Economics, School of Design and Art, Nanchang, ChinaSchool of Architecture and Art Design, Hebei University of Technology, Tianjin, ChinaThe development of mining cities has led to changes in land use and the evolution of landscape patterns. Constructing an ecological security evaluation system can reflect the ecological security status of mining city areas and provide planning references for these cities. This study, based on Heihe City’s land use data from 1980 to 2020, systematically analyzes the spatial and temporal evolution characteristics of land use, landscape patterns, and landscape ecological security levels by constructing a land use transfer matrix and calculating landscape pattern indices and landscape ecological security indices. The results show that: 1) Forest land is the main type of land use in Heihe City, accounting for over 50% of the total area. Land use changes primarily occurred between 2000–2010 and 2010–2020, with the spatial pattern characterized by overall stability and localized dramatic shifts, mainly involving the conversion of forest land to farmland and unused land. 2) From 1980 to 2020, the landscape ecological security pattern in Heihe City improved. Landscape diversity and landscape contagion increased, while landscape fragmentation, the largest patch area, and the average patch area decreased. Land use was optimized overall, but the trend of forest fragmentation became noticeable. 3) Between 1980 and 2020, the landscape ecological security level in Heihe City improved significantly. Driven by ecological restoration policies, the ecological security level in the southern region greatly improved, while the spatial pattern continued to show a trend of lower security in the south and higher security in the north. Specifically, the area proportions of low-security and relatively low-security areas increased by 6.23% and 9.55%, respectively. The spatial clustering of landscape ecological security levels is evident, with high-high value clustering mainly in the north and low-low value clustering mainly in the south. It is necessary to further promote ecological protection in the north to ensure the ecological barrier function, while strengthening ecological restoration in the south to improve ecological security levels. Additionally, continuous macro-policy regulation is needed to maintain long-term ecological security in Heihe City. The ecological security level of mining city landscapes is influenced by economic dependence, policy constraints, and environmental issues. This study can provide guidance for planning improvements in the study area and other mining cities.https://www.frontiersin.org/articles/10.3389/fenvs.2024.1488439/fullecological security assessmentHeihe cityland uselandscape patternmining city |
| spellingShingle | Yu Shi Xiaoxiao Fan Xiaoxiao Fan Haonan Chen Yuhan Kao Meiqi Sun Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city Frontiers in Environmental Science ecological security assessment Heihe city land use landscape pattern mining city |
| title | Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city |
| title_full | Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city |
| title_fullStr | Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city |
| title_full_unstemmed | Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city |
| title_short | Landscape pattern evolution and ecological security assessment based on land use changes in mining cities: a case study of Heihe city |
| title_sort | landscape pattern evolution and ecological security assessment based on land use changes in mining cities a case study of heihe city |
| topic | ecological security assessment Heihe city land use landscape pattern mining city |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2024.1488439/full |
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