Stem Analysis of Pinus bungeana in Xiaolongshan, Gansu Pronvince,China

doi:10.13466/j.cnki.lyzygl.2016.06.018

Abstract

Abstract: The growth regularity of Pinus bungeana was investigated in a natural secondary forest in Xiaolongshan,Gansu Province,China.The growth processes of Pinus bungeana growing indexes were analyzed based on the analysis of tree trunks.The results showed that the total growth increment of diameter at breast height(DBH),tree height(H),and volume of wood(V) all showed increasing trends during the whole growth periods.The growth of DBH and H showed a slow increase during 0~15 a,and then increased rapidly as tree-age increased to 15~40 a,but a relative slow increase during 40~63 a.The total V of P.bungeana increased slowly during 0~15 a,and then it increased rapidly and remained a rapid increase till the end of this survey.DBH,H and V of P.bungeana were fitted better with cubic curve.The “DBH-height curve” were fitted better with power curve equation.

Key words: Pinus bungeana, stem analysis, Xiaolongshan, increment, growth rate

CLC Number:

S758

LI Chunyi, YAO Guanggang, CHEN Wenjing, WANG Xiaoping, ZHA Tianshan. Stem Analysis of Pinus bungeana in Xiaolongshan, Gansu Pronvince,China[J]. FOREST RESOURCES WANAGEMENT, 2016, (6): 94-99.

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