| The paper selected Guangzhou as research object, built the research framework of carbon source and carbon sink of land
use, and also calculated the carbon emissions and carbon uptakes of land use, analyzed the effects of land use on carbon emission indepth.The results showed that the net carbon emissions presented the rising trend from 1996 to 2008 in Guangzhou, the net carbon emissions change of each districts and countries had the features as otherness. In addition, the effect of construction land was 0.03614*10^4 tons per hectare, and the predicted results showed the net carbon emissions increased significantly in 2020. In the end, the paper put forward some suggestions which could increase the carbon uptake but reduce the carbon emission from the angle of land use optimization. |
