Study On Optimization Of Urban Lowcarbon Spatial Pattern Influenced By Carbon Sink And Source

On the background of climate changes and global reducing exhaust,the low-carbon development have been the most important contents of global reducing carbon emission.Urban spatial pattern have some locking effect on urban operation and other important factors,which is the core means of urban planing.Therefore,the research of realation between urban spatial pattern and carbon emission become hotspot gradually now.As the accelerating development of urbanization in our country,the landuse expansion of urban have unprecedent development in our country.Although the land use expansion of urban can make the populantion and economy fast growth,but there also appears kinds of social ecological environment problems such as pollution and farmland shortage and so on,which affect the sustainable development of social economic and ecological environment.Paper take Sishui New Science and Technology Town as the research object,combine the distribution of carbon source and sink?key technology of spatial planning and correlated theory of low-carbon urban planning,such as urban compact development?green ring and greenbelt presenting urban development and green traffic and so on.It is beneficial to ordered construction of north numerous development zone,low-carbon spatial pattern can combine with technology of spatial planning and need of area development under the national strategy.In the research of sensitivity factors that affect urban low-carbon space,the effect of urban carbon source and sink system on urban environment become more and more important.Urban consumption of carbon emission mainly includes residential land?commercial land?office land?industrial land,transportantion field and population and so on.Those carbon source mainly come from energy consumption and carbon emission of people.Urban carbon sink system are main of forest greenland,so it is one of the most important factor to evaluate urban low-carbon environmental benefit is carbon sink estimation of urban forestry land.To know the situation of carbon source and sink based on land use status,analysis and estimate them based on the importance of carbon source and sink,the low-carbon support system can be built which is main of energy emission and Greenland sink combined with the carbon source space pattern of "maximum dispersion,minimum aggregation" and the carbon sink space pattern of "three-source Greenland".The pattern of three source-greenland is based on the theory of Greenland spatial pattren,search it according to actual situation of the study area and related research results,select the most important carbon sink factors which influenced ecological environment and other influences,take them as the effects the constraint conditions of urban ecological space.The factors would be the mutual superposition based on the spatial analysis,form the ecological support spatial pattern with natural elements.Form the whole low-carbon network of the greenery place as a source of oxygen outside,greenbelt-greenheart inside and neighbor-greenland by the qualitative and quantitative analysis method.At the end,optimize the urban ecological spatial pattern in the level of urban carbon source and sink distribution to help urban to become more perfect on planning and development.This paper is divided into six chapters:Chapter 1:Introduction.Largely including selecting background,research progress at home and abroad?Relevant concepts and theoretical method?Largely including the theoretical source of this paper,content and the framework,methods and the innovation.Chapter 2:Carbon source and sink 's analysis and estimate of Sishui New Science and Technology Town?Chapter 3:Mode of ideal low-carbon spatial pattern and relevant suggestions?Chapter 4:Spatial distribution of carbon source and sink based on Sishui New Science and Technology Town?Chapter 5:Optimization and evaluation of Sishui New Science and Technology Town?Chapter 6:Conclusion and prospect.Summarize research conclusion,point out the existing defects and deficiencies in this paper,and discuss the low-carbon cities space planning research in the future.