长沙市碳循环评估与低碳土地利用研究

发布时间：2018-01-09 21:53

本文关键词：长沙市碳循环评估与低碳土地利用研究　出处：《湖南师范大学》2015年硕士论文　论文类型：学位论文

【摘要】：城市是人类活动对地表影响最深刻的区域,工业革命以来,城市及其周边区域不仅代表土地利用/覆被变化强烈,而且化石燃料燃烧集中,二氧化碳排放量的80%以上来自城市区域,城市化过程必然会对全球碳循环和气候变化产生深远的影响。“低碳经济”概念的提出和发展为城市系统碳循环研究提供了全新的视角；城市碳过程是区域和全球碳循环的重要环节；建立城市碳循环核算方法体系是在城市层面制定应对气候变化的碳减排策略的基础。本文通过对城市系统碳循环的机理分析,构建了城市层面碳循环和碳流通研究以及土地利用碳储量和碳通量研究的理论框架,结合IPCC温室气体清单分析方法和国内外相关研究成果,构建了城市系统碳收支核算方法,城市系统碳循环运行评估方法,城市土地利用碳收支核算方法。本文选取长沙市六区四县为研究区域,开展了城市系统碳循环的实证研究,从不同的土地利用方式的碳储量和碳通量,探讨土地利用及其变化的碳排放效应。基于土地利用结构优化的角度,提出长沙低碳土地利用的规划方案和低碳城市管理策略。通过本文研究得出如下结论：(1)长沙2013年碳储量为7194万吨,碳输出为3971万吨,碳输入为3930万吨,长沙历年的碳输出均小幅高于碳输入。(2)在三种土地利用结构优化方案中基于碳排放最小化的结构优化方案最利于从总体上控制长沙市的碳排放水平。
[Abstract]:Since the industrial revolution, cities and their surrounding areas not only represent the strong land use / cover change, but also the concentration of fossil fuel combustion. More than 80% of carbon dioxide emissions come from urban areas. Urbanization is bound to have a profound impact on the global carbon cycle and climate change. The concept of "low-carbon economy" provides a new perspective for the study of the carbon cycle in urban systems. Urban carbon process is an important part of regional and global carbon cycle. The establishment of urban carbon cycle accounting method system is the basis of formulating carbon emission reduction strategies to deal with climate change at the urban level. This paper analyzes the mechanism of urban carbon cycle. The theoretical framework of urban carbon cycle and carbon circulation research, land use carbon storage and carbon flux research is constructed, combined with IPCC greenhouse gas inventory analysis method and related research results at home and abroad. The carbon budget accounting method of urban system, the evaluation method of urban system carbon cycle operation and the accounting method of urban land use carbon budget are constructed. This paper selects six districts and four counties of Changsha as the research area. An empirical study on the carbon cycle of urban systems is carried out to explore the carbon emission effects of land use and its changes from the perspective of land use structure optimization from the perspective of carbon storage and carbon fluxes of different land use patterns. The paper puts forward the plan of low-carbon land use and the management strategy of low-carbon city in Changsha. The following conclusion is drawn from the research in this paper: in 2013, the carbon storage of Changsha was 71.94 million tons, and the output of carbon was 39.71 million tons. Carbon input is 39.3 million tons. The carbon output of Changsha is slightly higher than that of carbon input. 2) among the three land use structure optimization schemes, the structural optimization scheme based on carbon emission minimization is the best to control the carbon emission level in Changsha as a whole.
【学位授予单位】：湖南师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X321;F301.2

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