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Quantitative Analysis of the Ecological Security Pattern for Regional Sustainable Development: Case Study of Chaohu Basin in Eastern China
| 题名： | Quantitative Analysis of the Ecological Security Pattern for Regional Sustainable Development: Case Study of Chaohu Basin in Eastern China |
| 正文语种： | 英文 |
| 作者： | Sucui Li1; Wu Xiao2; Yanling Zhao3; Jianfei Xu4; Hongzhi Da5; Xuejiao Lv6 |
| 作者单位： | 1Ph.D. Student, College of Geoscience and Surveying Engineering, China Univ. of Mining & Technology, Beijing, D11 Xueyuan Rd., Haidian District, Beijing 100083, China. 2Professor, Dept. of Land Management, Zhejiang Univ., 866 Yuhangtang Rd., Hangzhou, Zhejiang Province 310058, China (corresponding author). 3Professor, College of Geoscience and Surveying Engineering, China Univ. of Mining & Technology, Beijing, D11 Xueyuan Rd., Haidian District, Beijing 100083, China. 4Master Student, College of Geoscience and Surveying Engineering, China Univ. of Mining & Technology, Beijing, D11 Xueyuan Rd., Haidian District, Beijing 100083, China. 5Master Student, College of Geoscience and Surveying Engineering, China Univ. of Mining & Technology, Beijing, D11 Xueyuan Rd., Haidian District, Beijing 100083, China. 6Ph.D. Student, College of Geoscience and Surveying Engineering, China Univ. of Mining & Technology, Beijing, D11 Xueyuan Rd., Haidian District, Beijing 100083, China. |
| 关键词： | Habitat quality; Modified multiprocess and batch processing flow of multiple cumulative resistance; Landscape connectivity index; Ecological source; Ecological corridor; Ecological security pattern (ESP). |
| 摘要： | Rapid urbanization and irrational land use seriously threaten ecological security. Quantitative analysis optimization of ecological security patterns (ESPs) could ensure the sustainable development of ecosystems. Identifying of ecological sources’ thresholds and corridors is a difficult task. An integrated framework and analytical method are proposed here based on Geographic Information System (GIS) software, Python language, and a minimum cumulative resistance (MCR) model to construct and quantitatively analyze ESPs. The model includes the following functions: (1) the delimitation of ecological patches by assessing regional habitat quality; (2) identification of ecological sources using patch numbers (PNs), proportional area, and a landscape connectivity index; (3) identification of a resistance surface coefficient with a night light index; and (4) extraction of key ecological corridors and nodes using a modified multiprocess and batch processing flow of MCR. Habitat quality was classed at middle and high levels, the minimum area threshold of ecological sources was 2 km2, and urban areas and highways were the main obstacles to sustainable development. Potential key ecological corridors were extracted. The method can provide technical support for regional infrastructure planning, landscape optimization, and regional development. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Urban Planning and Development |
| 卷： | 145 |
| 期： | 3 |
| 页码： | 1-18 |
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