城市功能空间更新研究进展与新时期重点方向

文章首先基于西方城市更新发展历程，界定了城市功能更新的概念内涵，进而围绕城市功能更新背景与演替轨迹、城市功能更新类型与组织模式、城市更新空间模拟识别与评价、城市功能更新驱动机理与规划调控等国内外研究进展进行系统梳理，研究发现，城市功能更新趋势与经济社会发展水平、城市化所处阶段紧密相关，更新运作模式体现为政府、私有部门和社区等多元合作倾向，更新判定趋于多源数据融合辨识，更新策略的制定受政策调控力、经济驱动力、市场机制等多重因素叠加影响。基于此，伴随新时期中国城市发展转型调整，城市功能更新研究更加重视对更新实践的科学性认知、空间治理能力的精细化转向、治理理念的人本化回归，并主要聚焦城市功能更新理论体系与实操框架的构建、功能业态演替特征的精细考量、更新调控的因地施策等新时期研究热点。但既有研究主要从城市与区域宏观尺度上对单一功能类型的更新模式进行定性描述，对微观视阈下精细功能业态演替的多时相认知与客观评价仍显不足。为此，提出未来中国城市功能更新应重视加强微观空间尺度下功能业态更新模式的多维度量化解析研究；在研究方法上，应注重融入系统学研究思想及其综合方法。

Progress and Hot Research on Urban Functional Space Renewal in the New Era

Urban functional space renewal is an important means of revitalizing urban spaces, regenerating human memory, and reshaping spatial vitality in the new era; it is the core engine of sustainable urban development. In this paper, first, based on the development history of western urban renewal, we defined the concept and connotation of urban function renewal, and then systematically reviewed the research on urban function renewal at home and abroad; we focused particularly on the background and succession trajectory, function renewal models and spatial organization, research paradigm and space judgment, and driving mechanisms and planning regulation. Importantly, we discovered that the urban function renewal trend is closely related to the economic and social development level and the urbanization stage. Moreover, the urban functional renewal operation mode was observed to reflect the tendency of diversified cooperation between the governments, private sector, and communities. Additionally, the urban functional renewal judgment showed the tendency of multi-source data fusion and identification, and the urban functional renewal strategy was shown to be affected by multiple factors, such as policy control, the driving economic force, and market mechanisms. Particularly, with respect to the transformation and adjustment of the urban development in China in the new era, research on urban function renewal focuses more on the scientific cognition of urban renewal practice, the refined turn of spatial governance capabilities, and the humanistic return of governance concepts. Importantly, this paper focused on some hot topics of the urban function space research and has presented an in-depth discussion and analysis of issues, including the construction of the theoretical system and practical framework of urban function renewal in the new era; the succession characteristics of functional business research, and the regulation of localized policy were also addressed. Of note, existing research studies mainly qualitatively describe and analyze the update mode of a single function type at the macro-scale of cities and regions; reports on multi-temporal cognition and objective evaluation of business succession under the microscopic view are still insufficient. For this reason, we proposed that the renewal of urban functions in China should, in the future, pay more attention to the micro-spatial scale, especially the multi-dimensional quantitative analysis of the renewal mode of fine urban functions. Additionally, the integration of systematic research ideas should be considered for the generation of comprehensive methods to condense a universal, representative, and complete theoretical system of urban function renewal.