Allometric Relationship of Current-year Shoots in Pinus tabulaeformis

GUO Hong; LEI Xiang-dong; DIAO Jun

Based on Standardized major axis estimation, the allometric rules between internode biomass and internode length, between internode biomass and needle biomass, between internode sectional area and internode biomass, and between internode sectional area and needle biomass of current-year shoots on first-order branches, second-order branches and third-order branches of 10 years old Pinus tabulaeformis trees were analyzed by power exponent equation, and the independent data were used to test the allometric models. The results show that the correlation coefficient between predicted and observed values is higher than 0.85 except the case between sectional area and needle biomass, and the correlation is statistically significant. The size scale between internode biomass and needle biomass is less than 1, which means that the biomass allocation rate is higher for internode biomass than for needle biomass. The size scale between sectional area and needle biomass is close to 1, which means that there is symmetrical relationship between these two attributes.

1. Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China

Received Date: 2013-01-15

Abstract: Based on Standardized major axis estimation, the allometric rules between internode biomass and internode length, between internode biomass and needle biomass, between internode sectional area and internode biomass, and between internode sectional area and needle biomass of current-year shoots on first-order branches, second-order branches and third-order branches of 10 years old Pinus tabulaeformis trees were analyzed by power exponent equation, and the independent data were used to test the allometric models. The results show that the correlation coefficient between predicted and observed values is higher than 0.85 except the case between sectional area and needle biomass, and the correlation is statistically significant. The size scale between internode biomass and needle biomass is less than 1, which means that the biomass allocation rate is higher for internode biomass than for needle biomass. The size scale between sectional area and needle biomass is close to 1, which means that there is symmetrical relationship between these two attributes.

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Reference (19)

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Allometric Relationship of Current-year Shoots in Pinus tabulaeformis

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