| With the rapid development of social and economic and improvement of residents' quality of life,our country is facing the double pressure of urban development transformation and construction of low carbon,on the one hand,the extensive development of cities has brought many urban problems;On the other hand,the energy consumption of residents is increasing,and the carbon emission generated is gradually surpassing the industrial carbon emission as the main source of carbon emission.There is a close connection between the two pressures.City space form can affect residents' travel behavior,choice of housing,urban thermal environment and urban energy transmission loss way influence on the energy consumption of residents,such as,in turn,affects the city's carbon emissions.Therefore,by adjusting the configuration of urban spatial configuration elements,it can effectively reduce the living carbon emission of the city.However,the influence of urban space form on carbon emission is complex.On the one hand,the influence mechanism of different urban spatial forms on carbon emission is different.On the other hand,due to the influence of climatic and geological conditions in different regions,spatial morphological factors have different influence on carbon emission.Therefore,only on the space form,on the basis of qualitative analysis of the impact of carbon emissions of a region under the condition of city space form factor and the influence of the carbon emissions to the quantitative analysis and empirical,to adjust measures to local conditions for the establishment of the corresponding strategy,achieve the goal of reducing carbon emissions.Opposite activated carbon emissions based on the analysis of the urban space shape elements influence mechanism on the basis of the liaoning central city proper as the empirical object,on the space shape elements are classified and measuring the built up area,study different opposite activated carbon emissions space shape elements wind influence,and puts forward the central city of liaoning province the control strategy of space form,for "low carbon" city construction to provide theoretical reference.The main research contents of this paper include:1.Construct the spatial form index system that affects the life carbon emissions.By analyzing the quantitative study of urban space morphology in China,the paper summarizes the types and measures of urban space morphology.By analyzing and summarizing the research of domestic and foreign scholars on the impact of space form on carbon emissions,we have obtained various spatial form measures that affect carbon emissions in life,and constructed a spatial form index system for studying carbon emissions in life.Including four types of indicators:urban density,external morphology,internal function,and overall development intensity,while urban density indicators include population density,economic density,and road density;Fractal dimension is selected for external morphology;Internal functions include functional compaction,land use diversity,and bus coverage;The overall development strength includes volume ratio,building density and green land rate in built-up areas.2.Explore the mechanism of the influence of the spatial form of built-up area on the carbon emissions of life.We improved the framework for analyzing the impact of Ewing's urban spatial form on the energy consumption of residents,and concluded that the spatial form of urban built-up areas has an impact on the energy consumption of urban residents by affecting the travel of urban residents and the urban thermal environment,and thus affects the carbon emissions of urban residents.This paper analyzes the influence mechanism of spatial morphology index of city scale,exterior shape,interior function and development intensity on the carbon emission of living life.3.Empirical study of the impact of spatial morphology index on carbon emissions in central Liaoning city.Taking seven urban built-up areas in central Liaoning as the research object,the selected urban spatial morphology measure and the living carbon emissions were calculated,and a regression model was established.Through the multivariate gradual regression to the central Liaoning city to build up the space form each measure index to the living carbon emission influence relation to carry on the demonstration.The difference of the empirical results and the influence mechanism is analyzed.Finally,the spatial morphology related to the living carbon emissions in central Liaoning is urban density:population density and road area ratio are positively related to living carbon emissions;The fractal dimension of external morphology is negatively related to public transport carbon emissions,positively related to urban electricity emissions,and negatively related to heating carbon emissions,and the overall positive correlation;In terms of internal functions,land use diversity is negatively related to urban living carbon emissions,and public transport coverage is positively related to living carbon emissions;In terms of overall development intensity,the volume ratio is positively related to the living carbon emissions,and the green land rate is negatively related to the living carbon emissions.4.This paper puts forward some suggestions on the regulation of the space form of urban built-up areas in central Liaoning from low carbon perspective.Based on the mechanism and empirical results of the impacts of spatial patterns of built-up areas on carbon emissions,suggestions for the regulation of urban density with the aim of low carbon are put forward,including suggestions for the regulation of population density based on smart growth.Based on the road traffic function and ventilation function,proposed the road area ratio regulation proposal;The suggestions for the control of exterior form include:the suggestions for the control of urban development mode based on the internal traffic patterns of various cities,and the suggestions for the control of various urban "branch heads" and wind corridors according to the dominant wind direction of the city;In terms of internal function regulation,the paper puts forward some suggestions on the development of public transportation based on the characteristics of various cities.In terms of overall development intensity,starting with the area ratio,starting with housing supply,increasing the proportion of small area households,minimizing the construction of large area households,especially villas,and aiming at the control of the urban thermal environment,the paper proposes that on the urban scale,green space is used to stabilize carbon and release oxygen.Based on,Constructing "three source green space",on the scale of green patch,under the conditions,we should try our best to use a more open plane form,such as strip green space,cuneiform green space and so on. |
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