五大连池火山天然次生林蒙古栎树龄与胸径的关系  

Relationship Between Age and Diameter at Breast Height of Quercus Mongolica in Natural Secondary Forest of Wudalianchi Volcano

作　　者：谢立红[1] 黄庆阳[1] 曹宏杰[1] 王继丰[1] Xie Lihong;Huang Qingyang;Cao Hongjie;Wang Jifeng(Institute of Natural Resources and Ecology,Heilongjiang Academy of Sciences,Harbin 150040,China)

机构地区：[1]黑龙江省科学院自然与生态研究所,哈尔滨150040

出　　处：《黑龙江科学》2022年第24期9-12,共4页Heilongjiang Science

基　　金：中央引导地方科技发展专项(ZY20B15);黑龙江省科学院科学研究基金(KY2022ZR03)。

摘　　要：为探讨五大连池火山蒙古栎树龄与胸径的关系,采用线性函数、幂函数和指数函数比较判定方法,确定蒙古栎树龄与胸径的最优拟合方程。结果表明,线性函数、幂函数和指数函数都可以用来描述五大连池火山蒙古栎树龄与胸径的关系、幂函数方程为树龄与胸径关系的最优拟合方程;4座火山蒙古栎群落样地内,随着树龄增长,蒙古栎胸径生长量总体呈增加趋势,尾山蒙古栎径向生长速度最快;在相同树龄情况下,蒙古栎树龄50~70 a,东焦德布山蒙古栎径向生长最慢。幂函数方程可以用来比较分析五大连池火山不同森林群落中蒙古栎胸径生长速度,为林木林分年龄的测定和预估提供了参考,为种群年龄结构判定提供了便捷准确的方法。In order to know the relationship between age and diameter at breast height of Quercus mongolica in Wudalianchi Volcano, the study adopts linear function, power function and exponential function comparative adjustment method;and determines optimal fitted equation between age and diameter at breast height of Quercus mongolica. The study shows that linear function, power function and exponential function can all be used to describe the relationship between age and diameter at breast height of Quercus mongolica in Wudalianchi Volcano. Power function is the best fitting equation. In the 4 Quercus mongolica community plots, with the increase of tree age, the diameter at breast height growth of Quercus mongolica increases generally, and the radial growth rate of Quercus mongolica grows fastest. At the same tree age, the radial growth of Quercus mongolica is the slowest from 50~70 a. Growth of breast height of Quercus mongolica increases slowly. Power function is used to compare the growth rate of Quercus mongolica of different forest community in Wudalianchi, to provide reference for the measurement and prediction of standing forest age, and convenient and accurate method for population age structure.

关 键 词：五大连池火山 蒙古栎 生长方程 

分 类 号：S792.186[农业科学—林木遗传育种]