Research Status and Prospects of Geospatial Information Technology for Urban Renewal
In China,urbanization has entered a later stage characterized by a slowdown in growth rates and a focus on quality enhancement.The urban growth paradigm is transitioning gradually from"incremental development"to"quality improvement of existing urban stock",marking the adoption of a new urbanization mode centered around urban renewal.Urban renewal,as a spatial governance activity within the scope of national territory,aims to continuously enhance city functions,optimize spatial layout,improve environmental quality,and stimulate economic and social vitality.However,challenges of urban renewal,such as the ambiguous definition of urban renewal oriented towards national spatial planning and the lack of a systematic logical framework for geographic information technology tailored for urban renewal,still persist.Therefore,this study reexamines the connotations of urban renewal research from the perspective of the"Production-Living-Ecological"space,expecting to achieve"intensive and efficient production space","livable and moderate living space",and"beautiful and ecofriendly ecological space".Furthermore,with reference to the three processes of perception,assessment and optimization in"Urban Cognition",the logical architecture of geospatial information technology application for urban renewal is constructed,and based on this framework,the contributions of geographic spatial information technology in data collection,model assessment,and simulation optimization are elucidated.In the production space,geospatial information technology is able to perceive the production elements of urban renewal in real time,rapidly construct the economic benefit assessment index system and spatial assessment model,simulate the geographical process of industrial development,and optimize the spatial pattern of production.In the living space,the application of geospatial information technology helps to integrate the resources of living elements by means of spatial and temporal digitization,comprehensively assess the social benefits and carry out the spatial optimization of the allocation of public service facilities.In the ecological space,geospatial information technology provides an efficient and fast technical method for perceiving the elements of the natural environment and natural resources in a timely manner,constructing an ecological efficiency assessment index system to identify"urban diseases",optimizing the ecological spatial pattern,and exploring coping strategies to solve"urban diseases".Finally,based on the actual needs of urban renewal,the prospects for application of geographic spatial information technology in urban renewal research are discussed.This paper proposes comprehensive perception,comprehensive assessment,comprehensive optimization of urban renewal and construct an urban renewal technology system covering the whole process of"Perception-Assessment-Optimization",so as to improve the city's ability to adapt to the future development of regulation.These efforts will facilitate the modernization of national spatial governance systems and capabilities.
urban renewalgeospatial information technology"Production-Living-Ecological"spaceelement perceptionbenefit assessmentspatial optimization
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