Carbon Reduction Benefits and Evaluation of Park City Construction—Taking the Built-up Area of Chengdu Park City as an Example
As the main concentration of human activities,cities account for about 75％of the global sources of CO2 emissions.Park cities pursue the coordinated development of the entire ecosystem of"human-nature-city",in order to achieve sustainable urban development and comprehensive human development.Urban carbon reduction measures can be roughly divided into six categories,among which green space carbon sinks are currently the one with higher benefits.Reviewing the green space area in the built-up areas of Chengdu in the past five years,and roughly calculating the annual CO2 absorption and carbon sequestration of green spaces based on carbon sink the-ory,the CO2 absorption of green spaces increased from 24.8303 million tons in 2018 to 29.5469 million tons in 2022;The carbon sequestration of CO2 in green spaces increased from 5.8264 million tons in 2018 to 7.1164 mil-lion tons in 2022.Taking 2019 as an example,green spaces in urban built-up areas absorb 41.58％of annual CO2 emissions,while carbon sequestration and carbon sequestration can account for 9.74％of annual CO2 emissions.The development concept of park cities has a significant impact on carbon reduction benefits.
park citycarbon sinkcarbon reduction benefitscarbon emission rights
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