Effects of Land Uses on Carbon Emissions and Their Spatial-temporal Patterns in Guizhou Province

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).