【摘要】 以长岭岗林场日本落叶松为研究对象,通过调查分析不同龄级林分胸径、树高及材积等生长量指标,以揭示日本落叶松生长过程和林分特征。结果表明,日本落叶松胸径生长拟合方程D=5.838 lnt-5.241 1;树高拟合方程为H=1.110 3t^0.8917,树高与胸径之间拟合方程H=2.474 6e^0.1527D,材积拟合方程V=0.000 1t^2.2518,各拟合方程效果显著（R²大于0.98）。从胸径、树高株数累积分布曲线和平均生长量来看,日本落叶松幼龄林胸径、树高生长较快,但由于林分密度大,胸径生长没有达到最优状态;中龄林胸径、树高生长稳定;近熟林分胸径生长量和高生长量都放缓,林分内枯立木、濒死木占有一部分,其林分健康状况欠佳;成熟林多为日本落叶松与柳杉行间混交,林分状况良好。更多还原

【Abstract】 With Larix kaempferi forest in Changlinggang forestry farm taken as the research object,the DBH,height and volume of living trees from different age classes were investigated,to reveal the growth process and stand structure of Larix kaempferi. The results showed that the simulation model of DBH growth was expressed as D= 5. 838 lnt-5. 241 1; the simulation equation of the tree height growth was H = 1. 110 3 t^0.8917; the relation between the DBH and tree height was presented as H = 2.4746e^0.1527D,and the volume fitting equation was V=0. 000 1 t2. 251 8.All models reflected the good simulation（R² more than 0. 98）. The DBH and height growth of young trees were growing rapidly,but since the high density in stands,the optimal value of the DBH growth did not appear. The DBH and height growth were stable in half-mature stands. The value of the height growth and the DBH growth were minimum in near mature forest stands,some dead or the dying trees were found,and in poor health status in the stands. Mature forest stands were mostly mixed forests Cryptomeria fortunei×L. kaempferi as inter-row,and stands’ status was good.更多还原