Carbon Source Analysis And Carbon Emission Study Of Typical Measures For Sponge City Construction

Climate change has caused significant changes in the nature,ecologic,and social systems of the world.The impact of human activities has become increasingly serious.The accelerated development of urbanization has led to many environmental problems in cities.Among them,the greenhouse effect and urban flood disasters are phenomena in the process of urban development.How to build a sponge city on a low-carbon basis is the key to low-carbon ecological construction.Based on the study of low-carbon cities and sponge cities,this paper observes and analyzes the issues from the perspective of the entire life cycle,it is more conducive to the overall understanding of the factors that affect low-carbon construction of sponge cities.Through researching the whole life cycle study on the carbon emissions of several typical sponge city measures in the Jinzhong Sponge City Planning,we explore the main influencing factors of carbon emissions and the strategy of low-carbon construction of sponge cities.First,this study calculates and compares the carbon emission sources of several measures during construction phase.The results indicate that:1)The carbon emissions from material production are the most important carbon emissions during the construction phase;2)The research of sequence of carbon emissions per unit area during the construction phase of the four typical measures in descending order is:rainwater garden>permeable pavement>reservoirs>roof greening;3)The concrete materials are the greatest impact on carbon emissions during the construction phaseSecondly,this study researches and analysis on the management and conservation of carbon emissions in the operation and maintenance phase of the measures.The results of the study indicate that:1)Due to different management and maintenance intensity,the times of management and conservation in a year is different,and the impact on carbon emissions is slightly changed,but irrigation water accounted for The ratio is the largest,followed by pruning and spraying,and the fertilization is relatively small;2)The amount of carbon emissions per unit area of irrigation water decreases with the degree of management and conservation measures,and the proportion becomes heavier;3)Insecticides in various management measures in the carbon emission factor is the largest,followed by the fungicides,irrigation water,and irrigation power consumption.The carbon emission factor contributes a lot to the carbon emissions.The greater the carbon emission factor is used,the more the amount of carbon emissions are increased;4)The ratio of carbon emissions caused by the three types of management and maintenance intensity under the unit area is:1:2:5.2.In the end,According to the results of the analysis,based on relevant literature research and actual conditions,we propose low-carbon construction strategies to reduce sources carbon emissions and process carbon emissions in order to achieve low-carbon construction of sponge cities.This will provide low Carbon sponge city construction more basis and reference.