长沙市土地利用变化的碳排放效应及时空差异性  

Effects of Land Use Change on Carbon Emission in Changsha and the Spatial-Temporal Patterns

作　　者：周爱芳[1] 贺清云[1] 

机构地区：[1]湖南师范大学资源与环境科学学院,湖南长沙410081

出　　处：《吉首大学学报（自然科学版）》2014年第4期77-80,共4页Journal of Jishou University(Natural Sciences Edition)

摘　　要：运用相关统计方法测算并分析了长沙市不同土地利用方式的碳排放效应及时空差异.研究结果表明,2001—2012年,长沙市净碳排放量呈上升趋势,年均增加66.51万t,各区县净碳排放量的空间差异比较明显,单位GDP碳排放强度呈下降趋势.该结果反映了长沙市建设用地和耕地是主要的碳源,针对长沙市的市情提出了关于长沙市土地利用增汇减碳的对策.According to the relevant statistic data,the effects of land uses on carbon emission and their spatial-temporal patterns in Changsha were measured and analyzed. The results showed that the carbon emission showed an rising trend with the average speed of 66.51 × 10^4t · a^-1 from 2001 to 2012 in Chang- sha,and there were obvious differences in carbon emission between districts and countries in 2012,but the carbon intensity showed a declining trend. In addition,the results reflected that the construction land and farmland were the major carbon sources in Changsha. Accordingly,some suggestions are put forward to reduce the carbon emission through land use optimization in Changsha.

关 键 词：土地利用变化 碳排放 长沙市 

分 类 号：X22[环境科学与工程—环境科学] F121[经济管理—世界经济]