| 摘要: |
| 城市绿色基础设施对缓解生态环境问题、确保人居
环境安全和促进城市可持续发展有重要作用。以深圳市域为研
究区域，采用形态学空间格局分析法(MSPA)和InVEST生境
质量评估模型来识别生态源地，利用电路理论提取生态廊道并
识别生态夹点和障碍点，构建城市绿色基础设施网络并提出优
化策略。深圳城市绿色基础设施网络由56个生态源地、79条
生态廊道、面积约71.69 km2的生态夹点和180.12 km2的
生态障碍点构成。生态源地主要分布在东南部和中西部的山
体、林地等生态质量较高的区域；生态廊道主要分布在中西部
和东北部等地区；生态源地间普遍存在生态夹点，主要分布在
中西部、西南部及东北部；生态障碍点多位于生态源地的边缘
或生态廊道内部，主要分布在西南部、中部及东北部。从生态
源地、廊道和夹点的保护与质量提升，生态障碍点的修复，生
态修复优先区的界定与分级三方面，提出城市绿色基础设施网
络优化策略，为深圳城市绿色基础设施网络的构建与优化提供
方法支撑和实践指导。 |
| 关键词: 风景园林 城市绿色基础设施网络 形态学空间
格局分析 生境质量评估 电路理论 |
| DOI：10.19775/j.cla.2024.10.0068 |
| 投稿时间：2023-06-09修订日期：2023-12-31 |
| 基金项目:深圳市科技计划项目(20220807102319001) |
|
| Optimization of Urban Green Infrastructure NetworkBased on MSPA–Habitat Quality Assessment andCircuit Theory: Case of Shenzhen |
| LIU Ruixue,LIN Xiaolong,LI Yun |
| Abstract: |
| Green infrastructure is crucial in mitigating ecological
environmental problems, ensuring the safety of human settlements,
and promoting sustainable development. With Shenzhen as the
study area, ecological source patches were identified through the
morphological spatial pattern analysis (MSPA) and habitat quality
assessment using the InVEST model. Then, the circuit theory was
applied to extract ecological corridors and identify ecological
pinch points and obstacles. Based on the spatial characteristics
of these patches, corridors and pinch points, an urban green
infrastructure network was constructed, and optimization strategies
for this network were proposed. The findings indicate that the UGI
network in Shenzhen encompasses 56 ecological source patches,
79 ecological corridors, 71.69 km2 of ecological pinch points, and
180.12 km2 of ecological obstacles. These ecological source patches
are concentrated in regions with high ecological quality, such as
mountains and forests in the southeast, central, and western parts
of the city. Ecological corridors are mainly located in the central,
western, and northeastern regions. Ecological pinch points, which
are prevalent among ecological patches, are primarily distributed
in the central, southwestern, and northeastern areas. Most of the
ecological obstacles are located along the periphery of ecological
source patches or within ecological corridors, mainly in the
southwestern, central, and northeastern areas. From three aspects,
the protection and quality improvement of ecological patches,
corridors, and pinch points, the restoration of ecological obstacle
points, and the prioritization of areas for ecological restoration,
optimization strategies for Shenzhen's urban green infrastructure
network are proposed. This research provides methodological
support and practical guidance for the optimization of urban green
infrastructure network in Shenzhen. |
| Key words: landscape architecture urban green infrastructure
network morphological spatial pattern analysis habitat quality
assessment circuit theory |
