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

Abstract

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 the carbon reserve distribution state is analyzed, discussing the variation situation of carbon reserve spatial distribution is discussed, and providing the carbon reserve spatial distribution characteristics of the coniferous and broadleaf mixed forest are provideds. The method invention has important significance for mastering the relationship between the forest space structure and the carbon reserves, and provides reference for discovering the defects existing in the development of the forest carbon reserves and searching for a higher sink increasing space.

Description

technical field [0001] The invention relates to the technical field of forest analysis, in particular to a method for analyzing the carbon sink structure of mixed coniferous and broad-leaved forests in the Xiaoxing'an Mountains based on the carbon storage distribution state. Background technique [0002] The coniferous and broad-leaved mixed forest in the Xiaoxing’an Mountains is the main zonal forest vegetation in Northeast my country and a typical temperate mixed coniferous and broad-leaved forest. It has the characteristics of unique construction species, rich species diversity, and complex spatial structure. As much as 1 / 3 of the total forest area, it plays an important role in my country's forest carbon sink research and environmental protection. [0003] At present, most of the research on the spatial distribution of forest carbon stocks is based on the sub-class statistics collected by administrative provinces / counties, and the estimation accuracy is generally low. So...

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Problems solved by technology

[0004] The current research on carbon storage of forest vegetation does not analyze the spatial heterogeneity deeply enough, the main reason is that the scale effect is not fully considered

There is little research on this

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