Objectives In order to comprehensively understand the contribution of forest carbon sink in Longquan City, improve the county-level forest resource inventory, assist in formulating sustainable management and optimizing forest resource utilization and other forest management policies, and maximize the role of forestry in achieving regional carbon peak and carbon neutrality goals.

Methods This article calculated the carbon sequestration of forest trees at the growth stage of Longquan City based on the current situation of forest resources and timber and bamboo industries, estimated the carbon storage effect of forest products after logging, and evaluated their carbon removal contribution.

Results The results showed that: (1) By the end of 2020, the aboveground carbon storage of Longquan's arbor forests was 6 104.2 thousand tons of C, the aboveground carbon storage of bamboo forests was 937.7 thousand tons of C. The total carbon storage of forest trees was 7 041.9 thousand tons of C, equivalent to 25820.3 thousand tons of CO₂e. (2) In 2021, the aboveground carbon sequestration of arbor and bamboo forests in Longquan was 1 235.4 thousand tons of CO₂e, of which the aboveground carbon sequestration of Arbor and bamboo forests was 1 338.3 thousand tons of CO₂e. The aboveground carbon sequestration of bamboo forests was 51.3 thousand tons of CO₂e, and standing trees consume 154.2 thousand tons of CO₂e. (3)Through literature analysis, it is estimated that in 2021, the carbon storage of Longquan's indigenous products will be 120.2 thousand tons of C, which can offset 440.7 thousand tons of CO₂e emissions, it accounted for 35.67% of the aboveground carbon sequestration in Longquan's arbor and bamboo forests in 2021, with wood products accounting for 9.575 thousand tons of C, offsetting 35.1 thousand tons of CO₂e emissions, accounting for 22.76% of the carbon emissions from standing trees. (4) In 2021, the carbon stock of the locally processed wood-based panels in Longquan was 681.0 thousand tons of C, which could offset the carbon emissions of 2,497.0 thousand tons of CO₂e. At least 82% of locally processed bamboo and wood came from overseas.

Conclusions According to the above conclusion, some suggestions for carbon sequestration and emission reduction were put forward, such as the scientific implementation of sustainable forest management, cultivating large-diameter timber forests, cultivating high-quality bamboo forests, promoting the transformation of scientific and technological achievements, and carry out life-cycle carbon emissions accounting.