Method for analyzing carbon sink structure of small-khingan acicular-broad-leaved mixed forest based on carbon reserve distribution state

The invention relates to the technical field of forest analysis. The invention and particularly relates to a method for analyzing a carbon sink structure of a small-khingan acicular-broad-leaved mixedforest based on a carbon reserve distribution state. The method comprises the following steps: 1, preparing raw materials; setting a standard sample plot setting, adopting a sample method and an arbor positioning method to carry out are adopted. Sspecies identification, listing and positioning are carried out on arbor and small arbor plant individuals; measuring the tree height, the diameter atbreast height, the height under branches and the crown breadth; calculating carbon reserves are calculated, acquiring the spatial distribution pattern differentiation characteristic of the forest carbon reserves is obtained according to the carbon reserves, analyzing the sample plot spatial structure is analyzed through the vertical projection area, the mixing angle, the angular scale and the competition index, analyzing th