Study On Carbon Emission Effect Of Land Use Change In Guangdong Province

First, the paper describes the study of the effect of carbon emissions from land-use change background, significance and research status at home and abroad.Select Guangdong Province as the study area, from1996to2011to study the land use change emissions benefits, land use change mainly reflected in the decrease and increase of arable land for construction, forest area, the expansion of land for construction of strengthening the role of carbon in farmland reduce forest area weakened the role of carbon sinks.By SPSS linear regression, the study shows:Guangdong construction land net change in the overall trend of the relationship between carbon emissions, carbon intensity per capita GDP is basically the same from1996to1998, the scale of construction land in140to1.5million hectares, the respective year net carbon emissions, carbon intensity and a small rise in per capita GDP, essentially unchanged;1998to2005, the scale of construction land in150to1.7million hectares, the net carbon emissions each year, carbon emission intensity per capita GDP growth was accelerating trend growth rate becomes larger and larger;2005to2011. the scale of construction land in170to1.9million hectares. the net carbon emissions each year, carbon emission intensity per capita GDP greater speed than ever before growth, and almost a linear relationship. It is worth mentioning that the first net carbon emissions carbon intensity of growth and growth in GDP per capita. Overall, with the continuous expansion of construction land in Guangdong Province, from1996to date, the net carbon emissions, carbon intensity and per capita GDP growth was accelerating trend, as of now, the turning point downward trend has not yet appeared, still in accelerated phase. In addition, the period ahead, Guangdong Province by the scale of construction land, combined with the results of this study quadratic regression equation to predict net carbon emissions, carbon intensity and per capita GDP.With the continuous expansion of construction land in Guangdong Province, is essentially due to the continuous expansion of the land for construction sites hosted on energy consumption, and increasing energy consumption, CO2generated in the amount of energy consumed in the process of growing, increasingly evident greenhouse effect Ultimately the consumption of energy is artificially induced; management and technological level of progress, help to improve the energy consumption per unit of output of GDP.By GIS spatial analysis, studies show:1996,2008net carbon emissions city in Guangdong Province, found that from1996to2008, the Guangdong Provincial land use carbon emissions growing rapidly, but showed regional differences. In1996, the average carbon emissions of21prefecture-level city of1.53million tons/year, which Zhaoqing, Qingyuan, Meizhou, Heyuan and negative emissions, namely carbon emissions at00,000t/years; Shanwei, Shaoguan, Yunfu, Yangjiang, Jieyang, Huizhou, Chaozhou, Zhuhai, Zhanjiang, Shantou and other10regions in carbon emissions between0to100tons/year, is a low-carbon emission region; Jiangmen, Zhongshan, Maoming emissions of100to200tons/year is a medium-strength carbon emission region; Dongguan, Foshan emissions between400to500tons/year, Shenzhen, Guangzhou emissions above600tons/year, is a high-emission regions, including Guangzhou highest emissions, reaching8.636million tons/year. In2008, the average carbon emissions around the city to grow to4,724,000t/years. Carbon emissions in the region of negative00,000t/year, only one in Heyuan City, was-14.21million t/year in1996Heyuan is-95.27million t/year of carbon emissions grew rapidly; Shanwei, Yangjiang, Meizhou, Yunfu, Zhaoqing, Chaozhou, Zhuhai City emissions0-3007million t/year low emission region; Shaoguan, Shantou, Jieyang, Zhanjiang, Jiangmen, Qingyuan, Zhongshan, Huizhou, Maoming, emissions300-500million t/year, is a medium-strength carbon emission region; Dongguan, Foshan, Shenzhen, Guangzhou City4emissions above900million t/years is high emission regions, Foshan, Shenzhen, Guangzhou, more than10million t/year up to2203.21Guangzhou million t/years.Finally, the proposed countermeasures based on land-use carbon emissions:1) amend the relevant land laws and regulations, provide legal protection for the carbon emissions;2) the protection of arable land, increasing forest coverage;3) adjusting the industrial structure, the development of the tertiary industry;4) control of the total energy consumption, improve energy efficiency;5) local conditions, implementing measures differentiated land use carbon reduction policies in five areas, which can effectively achieve the purpose of carbon emissions.