Study on Biomass Model of the Mature Cunninghamia lanceolata Forest

doi:10.13466/j.cnki.lyzygl.2015.06.016

Abstract

Abstract: In this paper,the mature Cunninghamia lanceolata plantation of state-owned forest farms in Jiangle County of Fujian Province was taken as the research object and the basic data for each standard plot was obtained by establishing 16 standard plots.Biomass equation was simulated by Logistic equation and power function which are suitable for the biological characteristics.According to biomass average data and D,DH as independent variables,the Logistic equation and power function of different organs (trunk,root,leaf,branch)and whole-plant were simulated.Based on Residual Sum of Squares,Total Average Relative Error,Average Relative Error,Average Absolute Relative Error,Akaike Information Criterion and Bayesian Information Criterion,the best modle was selected from four modles.The best modle included 3 power function models (DH as independent variables),2 Logistic models (D as independent variables).The results show that1)The determination coefficient R² of the model was between 0.925 and 0.932.2)The proportion order of different organ biomass in whole forest biomass was tree > branches > roots > leaves.

Key words: Cunninghamia lanceolata, mature forest, biomass model

CLC Number:

S718.5

JIANG Peng,GUO Jintang,ZHANG Shaoxuan. Study on Biomass Model of the Mature Cunninghamia lanceolata Forest[J]. FOREST RESOURCES WANAGEMENT, 2015, (6): 83-87.

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