Optimization of urban spatial pattern under carbon emission constraints:Theoretical framework,index system and practical paths
Constructing a low-carbon urban spatial pattern is a crucial path for promoting the green and low-carbon development of cities.This study,based on the constraint goals of urban carbon emissions,establishes a theoretical framework for optimizing the urban spatial pattern under the principles of intensity,compactness,efficiency,and green orientation.It analyzes the inherent relationship between urban spatial patterns and the carbon accounting system and subsequently develops an evaluation indicator system covering four dimensions:urban scale,urban form,urban layout,and blue-green space.The urban scale dimension aims to control urban sprawl,involving indicators of population,economy and spatial scale.The urban form dimension is orientated towards external compactness and covers indicators of urban plan form and facade form.For the urban layout dimension,the focus is on functional efficiency,covering indicators such as residential density and the ratio of jobs-housing balance.Blue-green space is considered important for enhancing urban carbon sink,with indicators including the proportion of such space and its integration degree.Following the logic path of"Evaluation indicator-Planning strategy-Planning content-Spatial response",this study proposes four practical paths:(1)enhancing urban carrying capacity to control urban expansion reasonably,(2)optimizing urban spatial structure to create compact urban form,(3)integrating development of People-City-Industry-Transportation to enhance urban service functions,(4)constructing an ecological network to increase carbon sink capacity.These four paths provide guidance for optimizing urban spatial pattern under carbon emission constraints.
urban spatial patterncarbon emissionsterritorial spatial planninglow-carbon cityindex system
万方数据
维普
