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以辽东山区长白落叶松为研究对象,通过解析44株不同林龄的长白落叶松,建立起胸径、树高和材积生长模型,并对其生长过程进行分析研究。结果表明:采用Korf方程拟合辽东山区长白落叶松胸径、树高和材积生长模型效果最好,R2值分别为0.956、0.956和0.937,3个方程都能很好地反映其生长规律,能够用于辽东山区长白落叶松人工林生长过程的预测。长白落叶松胸径连年生长量的最大值出现在第7年,平均生长量的最大值出现在第16年,连年生长量与平均生长量相交时间出现在17~20a;树高连年生长量最大值出现在第6年,平均生长量最大值出现在第13年,连年生长量与平均生长量相交的时间在12~14a。长白落叶松在生长初期材积增长缓慢,30a以后材积生长速度较快,但是直到56a时,也没有达到数量成熟林,说明长白落叶松材积生长较慢。此外,根据长白落叶松的生长过程提出了其不同生长时期应该采取的主要经营管理措施。
In order to study the growth of Larix olgensis in the mountainous area of eastern Liaoning Province, 44 DBHs of different ages were analyzed to establish the DBH, tree height and volume growth models. The results showed that the Korf equation was the best method to fit DBH of Larix olgensis in the eastern Liaoning mountainous region, and the tree height and volume growth models were the best. The R2 values were 0.956, 0.956 and 0.937, respectively. The three equations could well reflect the growth pattern, Prediction of Growth Process of Larix olgensis Plantations in the East of Liaoning Province. The maximum annual growth rate of Larix olgensis appeared at the 7th year. The maximum average growth occurred at the 16th year. The annual growth rate and the average growth rate occurred at 17-20 a. The maximum annual growth rate of tree height Appeared in the 6th year, the average maximum growth occurred in the thirteenth years, annual growth and the average growth of the intersection of time in 12 ~ 14a. Larix olgensis grew slowly in early growth stage, and its volume growth rate was rapid after 30 years. However, up to 56 years, the volume did not reach mature forest, which indicated that Larix olgensis grew slowly. In addition, according to the growth process of P. lanceolata, the main management measures should be taken during different growth periods.