摘要
用金沟岭林场29棵枫桦解析木数据,研究了枫桦的生长过程。结果表明Richards方程能较好地拟合胸径、树高、材积生长过程,最优方程分别为:D=21.79780(1-e-0.03442A)1.85426;H=19.12484(1-e-0.04184A)1.48722;V=0.78503(1-e-0.01956A)3.67191。胸径、树高连年生长量分别在20 a和10 a达到最大,最大值分别为0.39 cm、0.45 m;材积连年生长量处于上升阶段,50 a内未达到最大。通过对东北地区重要的硬阔树种之一枫桦生长过程的研究,旨在进一步掌握枫桦的生长动态,为该地区森林资源管理提供依据。
The growth process of Betula costata has been investigated based on the data of 29 analytical wood in Jingouling forest farm. The results show that the Riehards equation can fit the growth process of DBH, tree height, volume with better effects, the their optimal equations are： D=21.79780（1-e-0.03442A）1.85426;H=19.12484（1-e-0.04184A）1.48722;V=0.78503（1-e-0.01956A）3.67191, The current annual increment of DBH and tree height reached the maximum values in 20 years and 10 years respectively, the corresponding values were 0.39 cm and 0.45 m; The current annual increment of volume growth was in the rising stage, not reached the maximum within 50 years. The aims studying the growth process ofBetula costata, which is one of the important hard broadly tree species in the northeast region of China, is to further study the dynamic growth ofBetula costata, provide a basis for the forest resources management of the region.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2012年第7期45-48,共4页
Journal of Central South University of Forestry & Technology
基金
林业公益性行业科研专项(20100400203)
