Estimation of Forest Carbon Stock in Hechi City Based on InVEST Model
In order to explore the carbon stock changes in Hechi City and quickly assess the grading,this paper studied the construction of the forest carbon stock estimation model and its spatial distribution in Hechi City based on the InVEST model,using the land use data of 2010 and 2020 as the data source.The results showed that the carbon stock in Hechi City in 2010 and 2020 was 219.1×106 t and 234.8×106 t,re-spectively,with an increasing trend.The spatial distribution of carbon stock showed the spatial characteris-tics of higher in the north,central and south,and lower in the northwest and east.The carbon sequestra-tion capacity was closely related to changes in land use types,and forest land contributed the most to the increase of carbon stock in Hechi City.The importance of carbon stock in Hechi City was graded accord-ing to the spatial distribution,which more intuitively showed the location importance of carbon stock.
forest carbon stockcarbon densityland use typeInVEST modelHechi City