Analysis on the Effect of the Carbon Sink to Urban Forests Offsetting Energy Carbon Emissions in Xiamen City

Based on the annual monitoring data of forest resources in Fujian Province in 2020,the distribution characteristics of carbon storage and carbon fixation in Xiamen City were estimated,and the effect of Xiamen urban forest offsetting energy emissions was evaluated. The results showed that the carbon storage of urban forest in Xiamen was 150.37×10⁴ t. The carbon sequestration of urban forest in Xiamen was 26.63×10⁴ t·a^-1,from 2016 to 2020,the average annual energy carbon emission in Xiamen was 925.91×10⁴ t,and the urban forest carbon storage was about 16.24 % of the average annual energy carbon emission. The urban forest carbon fixation can offset 2.88% of the average annual energy carbon emission. The average carbon density of urban forest was 32.46 t·hm^-2 in Xiamen City and the average carbon sequestration rate was 5.75 t·hm^-2·a^-1. Carbon density and carbon sequestration rate was different from forest type and forest age. Based on the characteristic of the carbon fixation in Xiamen City,the project put forward corresponding strategies to increase carbon sinks from the aspects of improving the area of urban forest resources,optimizing the spatial structure of urban forest and strengthening scientific management and operation,so as to provide support for the scientific management of urban forests.