Research On The Pressure Of Land Use Carbon Emission,the Potential Of Land Use Carbon Emission Reduction And Low-carbon Optimization Strategies Of Wuhan City

Since the 1980 s,global climate change issues had received widespread attention,and carbon emission was an important factor in global warming.Some experts estimated that during the 150 years from 1850 to 2000,the total amount of carbon emission caused by changes in land use patterns accounted for one-third of the total carbon emission caused by human activities,which was the second largest emission source after burning fossil energy.At this stage,China’s economy was developing rapidly;rural population was shifting to urban areas.The conversion of carbon sinks to carbon sources had led to a rapid increase in urban land-use carbon emission.In this context,how to effectively achieve carbon emission reduction under the dual pressures of economic development and environmental protection had become the focus of academic circles.In 2010,China’s first low-carbon pilot cities were picked out.In 2012,Wuhan City was selected as the second batch of low-carbon pilot cities in China.As the only sub-provincial city in the central region,Wuhan City was still facing a large carbon emission pressure.To this end,this paper took Wuhan City as an example,introducing the concept of carbon emission reduction potential,measuring the carbon emission and carbon emission intensity of land use in Wuhan City from 1997 to 2016,and then analyzing the status of land-use carbon emission pressure,and giving predicts about the recent land-use carbon emission pressure.This paper also adopted the scenario analysis methods,from the three aspects including industrial development,energy utilization and urban transportation,selecting the national political and cultural key city(Beijing),financial and economic key city(Shanghai),high-end manufacturing key city(Guangzhou)and the green eco-civilized city(Hangzhou)as reference cities,to analyze the carbon emission reduction potential of Wuhan City in the process of urban land use,clarifying the feasible direction of carbon emission reduction in Wuhan City,and proposing relevant optimization strategy.The main research contents were as follows:First,reviewing the research progress at home and abroad,to clarify the research content and research methods of this paper,as well as possible innovations;at the same time,sorting out the relevant concepts and theories applied for subsequent research.Second,based on the existing research results,calculating the carbon emission in Wuhan City from 1997 to 2016 according to different types of land use,and then calculating the net land use carbon emission;Where after,the average carbon intensity in Wuhan City from 1997 to 2016 were calculated,and the relationship among carbon emission and land use,population growth as well as economic development was further analyzed.As the results showed,from 1997 to 2016,the net carbon emission from land use in Wuhan City showed an upward trend.The growth rate of net carbon emission exceeded the speed of urban construction expansion and population growth,while the growth rate of GDP was greater than the growth of net land-use carbon emission speed.Thirdly,using the TAPIO decoupling index calculation method,the paper analyzed the land-use carbon emission pressure in Wuhan City from 1997 to 2016,and then adopting the trend extrapolation method to predict the carbon emission pressure of Wuhan City from 2017 to 2025.It showed that in the next 9 years,there will be still a weak decoupling between Wuhan City’s carbon emission and economic growth.It has not achieved complete decoupling between them,and there will be a certain carbon emission pressure,and further reduction of carbon emission reduction will still be needed.Fourth,through the literature review,this paper chose four similar cities(Beijing,Shanghai,Guangzhou and Hangzhou)as comparison objects.According to the “Wuhan Carbon Emission Peak Action Plan(2017-2022)”,this paper chose three factors,industrial development,energy utilization and urban transportation,that have a great impact on Wuhan’s carbon emission.Based on the structural adjustment of the above three factors,to analyze their carbon emission reduction potential,and propose feasible optimization strategies combing with actual conditions.The analysis results showed that based on the industrial development,energy utilization and the transformation of transportation structure,Wuhan City could greatly promote the mining of realistic carbon reduction potential.In terms of the supply of future industrial land,to guarantee a certain amount of primary industry land,gradually reducing the proportion of traditional tertiary industry land use,and increasing the proportion of technology capital-intensive tertiary industry land use,as well as encouraging the development of modern new service industries.In terms of the energy use,to reduce high carbon emission on various types of land Energy consumption,at the same time to increase the proportion of clean energy,increasing the use of new low-carbon and carbon-free energy such as solar,wind,hydropower,as well as improving energy utilization technology and energy efficiency.For traffic development,to improve urban bus and subway networks,controlling the growth rate of the number of private vehicles,actively promoting new energy vehicles,and guiding the public to low-carbon travel.