| 摘要: |
| 资本扩张驱动伪城市化进程使得
自然资源约束趋紧，推进城市生态文明建设
势在必行。文章论述了现代城市空间模型的
生态转向，提出以绿色基础设施作为城市空
间系统的生态支撑，总结其结构和尺度的空
间特性，强调绿色基础设施在城市空间建
构中的先导作用，探讨一种生态优先的系统
化方法，即“绿色基础设施规划作为脊柱架
构—灰色基础设施规划作为骨架搭建—地
块、建筑等作为组织填充”。结合重庆钓鱼嘴
片区项目实践，剖析该模式的建构过程，论证
重点地段城市设计中绿色先行、灰色协同的
空间结构生成逻辑。 |
| 关键词: 城市设计 绿色基础设施 空间模
型 系统化 建构方法 |
| DOI：10.13791/j.cnki.hsfwest.20210414 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（513785177） |
|
| Research on the Construction Model of Urban Space Led by Green Infrastructure |
|
SUN Yuanhe,HU Wen,LIU Weidan
|
| Abstract: |
| The urbanization proless driven by capital expansion leads to the tightening of natunal resounrces
constraints. Natural resources are not only the material basis for human survival and development, but also
the ecological background supporting the process of urbanization. Therefore, the construction of ecological
civilization focusing on human needs has become the only way for urban development in China. The
theoretical and practical research of green infrastructure is an important topic of current academic concern.
This paper discusses the construction mode of urban space guided by Green Infrastructure. It emphasizes the
adaptive ecological protection and utilization in principle, integrates the thinking of ecological priority into the
whole process of urban planning and design, and takes green infrastructure as the ecological support of urban
space system for systematic organic construction, so as to leave enough flexibility and enhance toughness for
the future development of urban space.
In order to realize the normal operation of “social ecosystem” and promote the urban
spatial growth to adapt to the ecological service function, the construction of the spatial model
supported by Green Infrastructure not only considers the economic benefits and spatial efficiency,
but also considers the comprehensive benefits of sustainable development of economy, society
and ecological environment. The spatial expression emphasizes the combination of “blue-green”
system and road system. Green Infrastructure is composed of natural areas and open space
network. As a connecting medium, Green Infrastructure can be used as the ecological support for
the synchronous development of the “two systems”. It is based on the spatial characteristics of the
interrelationship between Green Infrastructure planning and urban design, mainly reflected in
the structural connectivity and multi-scale adaptability. Multi scale adaptation is the foundation
of green infrastructure structural connectivity, and structural connectivity is the fundamental
purpose of multi-scale adaptation.
Green Infrastructure is derived from the natural element system, and as an ecological support,
it can fit the development order of urban space system. The systematic construction method
emphasizes the organic construction of urban space system by deriving the basic structure and
connecting the system as the order unit. The construction process is divided into three steps,
it discusses a systematic method of ecological priority, that is “Green Infrastructure planning
as spine-Grey Infrastructure planning as skeleton-The Land, Buildings, etc. as Tissue”. The
advantages of green infrastructure as the guide lie in the development concept of ecological and
environmental protection first, emphasizing the green spatial structure of structural connectivity,
more compact and intensive project layout and efficient land use methods, so as to lay the
foundation for encouraging green travel, low-carbon life and building high-quality human
settlements. Infrastructure construction is the first condition of urban land development, bearing the heavy responsibility of population aggregation and
industrial development. If ecological priority is not considered at the beginning of planning, the implementation of sponge city and other concepts
will be difficult to sustain. However, the traditional Gray Infrastructure planning and green space system planning are two parallel work processes,
which respectively undertake different urban function roles, and the functional complexity between them is not strong. Therefore, it is necessary to
emphasize the leading role of Green Infrastructure, Gray Infrastructure to do more system cooperation, and build the urban space system of natural
and artificial synchronous symbiosis.
Based on the project practice of Diaoyuzui district in Chongqing, this paper analyzes the construction process of the mode, and demonstrates
that the green first and gray collaborative spatial structure generation logic should be formed in the urban design of important sections. Diaoyuzui
district of Chongqing is located in the southeast of Dadukou District, adjacent to Zhongliang Mountain in the north, and adjacent to the Yangtze
River on three sides, with a total area of 7.92 square kilometers and a total length of 10.26 kilometers of waterfront. It is the first peninsula area
where the Yangtze River enters the main urban area of Chongqing. As an important part of urban design, Diaoyuzui area has a relatively complete
natural area, which provides a good ecological background for the development of urban green space network. The urban design of Diaoyuzui district is
essentially the arrangement of the spatial resource allocation sequence and spatial structure generation logic. From the perspective of green space
development, it accumulates practical experience for the development and construction of new urban areas and key areas. This project discusses the
specific application of green infrastructure planning in mesoscale urban design, and explores an efficient and flexible spatial development model.
First of all, the morphological constraints of green space elements are analyzed, and then the physical spatial structure of the city is generated
within the delimited space boundary, and the “gray and green” construct to establish the spatial order of urban green integration. In a word, the
implementation of the ecological support function of Green Infrastructure in urban design method is to realize the urban form with controllable
system, organic whole and more toughness. |
| Key words: Urban Design Green Infrastructure Space Model Systematization Construction Method |
