化“畸零边角”为“金角银边”的公园城市微场景更新研究

Investigation on Micro-scene Renewal of Park City to Transform Inefficient Edges into High-valueEdges

关键词:  风景园林  边角空间  场景理论  城市微更新  “公园+”空间

Key words:  landscape architecture  free and loss space  scenario theory  urban renewal  "park+" space

摘要:

公园城市建设过程中，建成环境内低效失落的城市畸零边角空间具有转化为微绿地和小微公共空间的潜质，是化解城市用地绩效失衡、优化生态网络体 系、补充和完善城市游憩体系、激活再发展活力的关键性潜力空间。基于公园城市信息平台，结合将城市边角空间转化为“金角银边”的微场景营建既有实践， 探索公园城市微场景更新内涵、特征及构建原理，构建融合“评估与识别”“分类与划定”“解析与设计”以及“治理与保障”多维度相辅相成的技术框架，确 定了融合生态改良方法、景观营造方法和触媒策划方法为一体的微场景更新方法，以及覆绿增色、植景丰容、增配赋能组合叠加的更新模式，凝练公园城市微场 景更新提升活力和发展潜力的路径参考。

Abstract:

The construction of park city in the new era is fundamentally about deeply exploring and utilizing the idle and underperforming spaces within the built environment, enhancing their ecological and landscape characteristics, and supplementing them with appropriate social functions. This approach aims to achieve a holistic performance that encompasses ecological, economic, landscape, social, and spatial benefits, based on ecological efficiency. The goal is to create micro-scenic spaces that complement urban parks, providing a park-like urban environment that meets the high-quality and refined living environment needs of residents, with optimal spatial accessibility, aesthetic landscape perception, and active participation. Under the refined governance of cities, the development requirement of "people-oriented" shifts the focus of urban park green space layout from the traditional "land-land" (park land and residential land) relationship to the "land-people" (park land and urban residents) relationship. As the construction of park cities progresses, the creation of parklike scenes helps to effectively address the limitations imposed by high-density built environments on the development of park green spaces, better presenting the interaction between "space-people" (park-like spaces-urban residents). The potential corner spaces within the existing urban fabric have the potential to be transformed into urban micro-green spaces and small public spaces, which are key to the renewal and creation of park-like "golden corners and silver edges" through micro-scene renewals. These "golden corners and silver edges" of the city, with their ecological, landscape, and social functions, contribute to the supplementation, optimization, and enhancement of regional overall functions, forming a high-performance characteristic that integrates high ecological service provision, high landscape aesthetic perception, high resident demand support, and high socio-economic vitality support. The construction of park city "golden corners and silver edges" involves identifying the potentially renewable corner spaces within the existing built environment. By assessing spaces based on their characteristics, vitality, and management attributes, spaces with high renewal potential are selected and their transformation directions are determined. The transformation and optimization of these spaces are achieved through microscene renewal techniques that integrate ecological support, demand fitting, landscape enhancement, and activity introduction, thereby creating park-like landscape-perceptual spaces. Guided by a technical framework that includes the assessment and identification of regional spatial characteristics, classification and delineation based on site characteristics and neighborhood needs, analysis and design aligned with micro-scene construction goals, and governance and assurance for the sustainable value transformation of projects, the phased micro-renewal methods of "ecological improvement" foundation, "functional implantation" supplementation, "atmosphere construction" optimization, and "catalyst planning" revitalization are employed. These methods facilitate the orderly advancement of urban small-space renewal, transforming negative and underutilized urban corner spaces into key spaces that possess ecologicalsocial relevance and landscape aesthetic experiences. The research, exemplified by the "golden corners and silver edges" project in Wuhou District, Chengdu, which adopts a combination of "systematic district advancement + point project exploration" and utilizes the new model of "EPC+O" that combines government investment with market-oriented and professional operation, summarizes three construction modes: greening and color enhancement to reconstruct the ecological landscape foundation of the site, planting enrichment to elevate the ecological and characteristic landscape perception of the site, and capacity augmentation to enhance the participatory and unique experiential qualities of the site. By combining and overlaying these three modes according to the differences in transformation objects and goals, the project guides the transformation of negative, underutilized, and inefficient urban corner spaces into a series of park-like scene spaces characterized by "high landscape perception-high catalyst attraction-high vitality features". This provides guidance for the systematic micro-scene renewal work that aims to improve the regional ecological network, supplement neighborhood public service shortcomings, support diverse resident needs, and enhance the urban landscape.