期刊
ECOLOGICAL INDICATORS
卷 136, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ecolind.2022.108688
关键词
Ecological security pattern; Ecological corridors; Ecological sources; Ecosystem services; Urban agglomeration
资金
- National Key R&D Program of China [2019YFD1100901]
- Natural Science Foundation of Shaanxi Provincial [2021KRM029]
- Foundation of Ministry of Hosing and Urban-Rural Development [12020210199]
- National Natural Science Foundation of China [51908442]
- Research on Major Theoretical and Practical Problems of Philosophy and Social Sciences in Shaanxi [2021ND0198]
This paper proposes a technical framework for delineating ecological security patterns at the urban agglomeration scale based on the example of the Guanzhong Plain urban agglomeration. The results provide guidance for the optimization of regional ecological security patterns and the prevention and control of environmental pollution.
Ecological security patterns are employed to characterize the health and integrity of an ecosystem. It is essential to achieve sustainable and high-quality development of cities and urban agglomerations and to enhance human well-being. Considering the Guanzhong Plain urban agglomerationd as an example, this paper proposes a technical framework for the delineation of ecological security patterns at the urban agglomeration scale with the objective of protecting and restoring mountains-rivers-forests-farmlands-lakes-grasslands. The ecological sources were indicated by the importance-sensitivity ecological assessment method. Ecological corridors were identified by a minimum resistance model, and the ecological security pattern was derived. Twenty-three important ecological source sites were identified within the urban agglomeration, mainly located in the southern part of the Guanzhong Plain urban agglomeration, with an area of 9122.36 km(2), accounting for 8.52% of the study area. The ecological sensitivity of the mountainous areas was relatively high, with ecological corridors showing a denser distribution in the south. The results of the study suggest that green infrastructure in the northern region should be strengthened, that the ecological functions of ecologically sensitive areas should be protected and enhanced, and that the connectivity of ecological corridors should be strengthened. The results provide guidance for the optimization of regional ecological security patterns for and the joint prevention and control of environmental pollution in the Guanzhong Plain.
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