Carbon Stock Analysis of Forest Biomass in Baoshan City
In order to explore the forest biomass carbon stock in Baoshan City,the bottom line is clear.Based on the data of forest area,forest species,dominant tree species,forest stock and other data in the 2021 National For-estry and Grassland Ecological Comprehensive Monitoring and Evaluation in Baoshan City(data from the State Forestry and Grassland Bureau,November 2022),the biomass expansion factor method was used to measure the biomass carbon stock in arbor forests;and the average biomass method was used to measure the biomass carbon stock in bamboo forests and shrub forests.The results show that the forest biomass carbon stock in Baoshan City is 61868.91 kt(excluding the carbon stock of shrubs and herbs under arbor forests and the carbon stock of dead leaves and branches),of which the carbon stock of arbor forest,bamboo forest and shrub forest is 60194.22 kt,618.12 kt,1056.57 kt,respectively.The average carbon density of arbor forests is 53.97 t/hm2,that of natural forests is 59.79 t/hm2,and that of planted forests is 43.81 t/hm2.The coefficient of variation of carbon density was 64.49%,indicating that the quality of forest stands varied greatly.The forest biomass carbon stock was ranked by area:Tengchong City>Longyang District>Channing County>Longling County>Shidian County,with Tengchong City accounting for nearly half of the biomass carbon stock.