[Identification of Ecological Restoration of Territorial Space Based on Ecosystem Degradation Risk and Ecological Security Pattern: A Case Study of the Chang-Zhu-Tan Metropolitan Area].

Q2 Environmental Science
Rui Tian, Zhong-Qiu Zhao, Dong-Yang Song
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引用次数: 0

Abstract

Ecological restoration of territorial space is an important measure to implement the concept of ecological civilization construction, and accurately identifying ecological restoration areas is a difficult point in carrying out the ecological restoration of territorial space. Taking the Chang-Zhu-Tan metropolitan area as the research area; we used methods and models, such as the water balance equation, InVEST model, and circuit theory; combining ecological degradation risk assessment with ecological security pattern construction; accurately identifying the ecological conservation area and ecological restoration area of the ecological source area, ecological corridor, and stepping stone; and proposed strategies for ecological protection and restoration of national land space. The results indicated that: ① The ecological degradation risk in the study area substantially showed a "medium high and low weekly" spatial pattern. ② A total of 74 ecological source areas were identified with a total area of 5 425.21 km2, 170 ecological corridors with a total length of 1 608.26 km, and 78 stepping stones with a total area of 24.35 km2. A source restoration area of 105.98 km2, corridor restoration area of 643.25 km, and stepping stone restoration area of 16.59 km2 were diagnosed. ③ We constructed an ecological network spatial pattern of "one heart, one ring, and one barrier" in the Chang-Zhu-Tan metropolitan area, including the green heart, ecological middle ring, and peripheral ecological barrier. ④ Based on the identification result of ecological restoration of territorial space and combined with the actual situation of the research area, differently oriented ecological protection and restoration measures have been proposed, and a collaborative cross regional restoration mechanism of "governance-management-supervision-early warning" was formed. The research results are helpful for the formulation and implementation of ecological restoration of territorial space plans and measures in the Chang-Zhu-Tan metropolitan area and can also provide scientific methods for ecological protection and restoration research in other similar areas.

基于生态系统退化风险与生态安全格局的国土空间生态恢复识别——以长株潭都市圈为例[j]。
国土空间生态修复是落实生态文明建设理念的重要举措,准确识别生态修复区域是开展国土空间生态修复的难点。以长柱潭都市圈为研究区域,运用水平衡方程、InVEST模型、回路理论等方法和模型,将生态退化风险评估与生态安全格局构建相结合,准确识别出生态源区、生态廊道、生态涵养区、生态恢复区、并提出了国土空间生态保护与修复战略。结果表明:①研究区生态退化风险总体呈现“中高低周”的空间格局。②共确定生态源区74个,总面积5 425.21 km2;生态廊道170个,总长1 608.26 km;踏脚石78个,总面积24.35 km2。源恢复面积为105.98 km2,廊道恢复面积为643.25 km2,垫脚石恢复面积为16.59 km2。③构建了长株潭都市圈“一颗心、一环、一屏障”的生态网络空间格局,包括绿色中心、生态中环和外围生态屏障。④在国土空间生态修复识别结果的基础上,结合研究区实际情况,提出了不同导向的生态保护与修复措施,形成了“治理-管理-监督-预警”的跨区域协同修复机制。研究成果有助于长株潭都市圈国土空间生态修复规划与措施的制定与实施,也可为其他类似区域的生态保护与修复研究提供科学的方法。
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来源期刊
环境科学
环境科学 Environmental Science-Environmental Science (all)
CiteScore
4.40
自引率
0.00%
发文量
15329
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