摘要:
在相关能源消费和土地利用面积数据基础上,采用碳排放模型的研究方法,分析贵州省2001-2010年不同土地利用方式的碳排放效益和时空格局。结论如下:贵州省碳排放总量2001-2010年以来总体呈增长的趋势,年均增加295.56万t;建设用地的碳排放贡献率达96.86%以上,且呈递增趋势;2001-2010年贵州省碳排放强度总体呈下降趋势,由2001年的2.21万t·亿元-1下降到2010年的1.21万t·亿元-1,下降率为6.95%,远小于16.85%的GDP增长率;碳排放收支不平衡,造成生态赤字;2010年,贵州省净碳排放量存在明显的区域差异,总体上呈现出从西到东逐渐减小的趋势,其中六盘水市、黔西南州属于高排放-低效率(HE-LE)类型,黔东南州、铜仁市、遵义市、安顺市属于低排放-高效率(LE-HE)类型,贵阳市、黔南州、毕节市属于中排放-中效率(ME-ME)类型。
关键词:
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土地利用 /
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碳排放 /
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碳足迹 /
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时空差异 /
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贵州省
Abstract:
Based on the statistic area data of land utilization and energy consumption from 2001to 2010in Guizhou Province,we analyzed the effects of land uses on carbon emissions and their spatial-temporal patterns in Guizhou province by using carbon emission model.The conclusion could be drawn as follows:The total carbon emission was increasing with an annual rate of 2.9556×106t from 2001to 2010;The carbon emission by construction land had been contribution reaches above 96.86%,and there was an increasing trend;Carbon emission intensity decreased continuously,from 2.21×10-4 t·Yuan-1 in 2001falling to 1.21×10-4 t·Yuan-1 in 2010,with an annual decreased rate of 6.95%,lower than the increase rate of GDP which was 16.85%;Carbon emission payment imbalance,which caused ecological deficit;There were obvious differences in net carbon emission in 2010,with a gradually reducing trend from west to east.Liupanshui,southwest of Guizhou were the type of HE-LE(High emission-Low efficiency)while southeast of Guizhou,Tongren,Zunyi and Anshun were LE-HE(Low emissionHigh efficiency).Guiyang,south of Guizhou,Bijie were the type of ME-ME(Middle emission-Middle efficiency).
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