| 摘要: |
| 在我国城市高质量发展阶段，针对
存量背景下城市生态空间碎片化、孤岛化、
生态与发展二元对立等问题，本文提出以生
态基础设施（EI）网络为物质载体支撑城市
生态格局优化的思路。通过对城市EI 概念、
内涵、及其构建方法的解析和梳理，凸现常
规将EI 系统作为城市发展前置性配置要素的
方法对于存量背景下的城市并不适宜，因而
提出从单个的“点”入手反向撬动“线”
与“面”，以存量空间生态化转型为切入点，
通过复合型生态廊道构建、网络化织补等方
法实现存量背景下城市EI 网络的整合与优化
策略，并提出了可切实落地的实施路径。本
文丰富了存量时代城市生态空间规划的理论
研究框架，为土地资源刚性约束下的城市发
展提供了实践示范。 |
| 关键词: 存量空间 城市生态基础设施 构
建逻辑 优化策略 实施路径 |
| DOI：10.13791/j.cnki.hsfwest.20260219001 |
| 分类号: |
| 基金项目:“十四五”国家重点研发计划项目（2024YFF1307000）；国家自然科学基金面上项目（52278071）；上海市科委科技支撑专项（22DZ1207800） |
|
| Optimization and implementation paths of urban ecological infrastructure in the context ofbuilt-up area |
|
ZOU Jin,LU Nan,YAN Wentao
|
| Abstract: |
| At present, China’s urbanization has entered a pivotal transitional period featured by stockoriented
quality improvement and intensive connotative development, which has fundamentally
shifted the core focus of urban development to the optimal restructuring, multi-dimensional functional
upgrading and comprehensive value reshaping of existing built-up areas. With the rigid constraints of
land resources and the tightening of urban construction boundaries, large-scale incremental
development is no longer feasible, making stock renewal the mainstream path of urban construction.
However, the practical advancement of urban stock renewal is plagued by a series of prominent
practical dilemmas in urban ecological space governance, such as serious fragmentation of ecological
patches, blocked ecological connectivity, and the separation of ecological protection and urban
construction. To effectively resolve these stubborn problems, this paper puts forward a targeted idea
of optimizing urban ecological pattern, with the urban ecological infrastructure (EI) network as a solid
tangible physical carrier and core supporting system. Urban ecological infrastructure deeply integrates
ecosystem services with complete ecological structures, sustaining the structural and functional
integrity of urban complex ecosystems by strengthening the supporting capacity and interaction
efficiency of various ecological elements. It is highly similar to green infrastructure in core
implication, and the two concepts have gradually converged in internal connotation and applicable
spatial scales with the deepening of relevant researches and engineering practices. For the
construction of urban EI systems, several relatively mature methodologies have been formed to build
landscape-scale EI systems and shape complete corresponding spatial structures. Nevertheless, all
these conventional approaches take EI systems as fundamental and pre-configured prerequisite
elements for urban development and construction, which are completely unsuitable for stockconstrained
cities with limited space for incremental expansion. Ecological pattern optimization for
stock-constrained cities can never be achieved by blindly expanding new ecological spaces, but only
by fully tapping the potential ecological value of existing inefficient and idle stock spaces. There are
five major types of urban stock spaces eligible for EI construction and ecological restoration:
declining industrial land, aging urban residential communities, waterfront open spaces, linear land
along transportation corridors, and urban idle land and marginal plots. To realize the medium and
long-term development strategy of urban EI under stock constraints, it is essential to anchor the
spatial layout of urban ecosystem services to the ecological transformation of stock spaces, build
multi-functional composite ecological corridors, form an optimized and integrated ecological
network, and adopt an innovative reverse “point-line-area” construction approach. Starting with the
targeted ecological transformation of scattered single stock spaces, this innovative approach drives
steady ecological improvement from communities to urban functional districts and even the whole
city, while supplementing and remedying the weak links and functional deficiencies of the original
urban ecosystem, ultimately forming a multi-level, cross-scale and highly interconnected urban
ecological spatial network. For the specific renovation and implementation of spatial nodes,
ecological corridors and overall ecological networks, relevant practices are generally carried out inline with the actual pace of urban renewal and coordinated development, targeting the five typical types of urban stock spaces mentioned above. At the spatial
node level, core efforts focus on diversified functional upgrading and targeted ecological renovation to balance ecological benefits and daily service demands;
at the corridor level, priorities are given to smooth physical spatial connectivity, as well as the efficient development and utilization of ancillary spaces attached
to gray infrastructure to improve land use efficiency; at the ecological network level, renewed stock spaces and original scattered ecological land are integrated
to form district-level sub-networks, eliminating breakpoints of ecological corridors and linking fragmented ecological patches. Through networked weaving and
systematic restoration of the original urban ecosystem, the overall network integration and systematic optimization of urban EI are thoroughly realized. This
paper breaks through the limitations of existing studies that mostly focus on new urban district ecological planning, single green space construction or single
engineering technologies, and strengthens the in-depth research on the coupling mechanism of stock constraints, ecological functions and spatial structures. It
enriches and improves the theoretical framework of urban ecological space planning in the stock era, and puts forward operable EI optimization and
implementation strategies under the stock background, providing direct practical references for various stock renewal projects. Additionally, it proposes feasible
strategies for the coordinated development of intensive land use and ecological value improvement, offering a valuable practical demonstration for sustainable
high-quality urban development under the rigid constraints of land resources. |
| Key words: built-up area urban ecological infrastructure construction logic optimization strategy implementation path |
