The Regional Differentiation of the CO2 Emission Structure in Region along the Lower Yellow River

摘要

In China,it is important for the accounting,structural evolution and regional differences analyzing of the city-level carbon emissions for rational utilization of geographical potential in regions to inhibit the rapid growth of carbon emissions in the short term by technological learning and knowledge flows.In this study,CO2 emissions from fossil fuel and cement industrial processes have been accounted in the region along the Lower Yellow River based on the municipal administrative units from 2000 to 2009,along with the accounting in the two sub-zones and 21 cities.Study shows that,the total CO2 emissions at different spatial scales shows a typical 'S-type' growth characteristic,but there are significant spatial and temporal differences in the emission structures.Generally,emissions from the cement industrial processes have a rapid growth for the rapid industrialization in some cities.Optimization of industrial structure in a few cities has promoted the proportion of emissions from the cement industrial production to decline.Different evolutions in emission structure at different scales reflect features of the CO2emission structure under the pushing of rapid industrialization and urbanization.