摘要
利用相容性生物量模型对人工长白落叶松林生物量进行计算,分析了间伐对林分总生物量、树干生物量、树枝生物量和树叶生物量的影响。结果表明:间伐林分在间伐后总生物量明显低于未间伐林分的总生物量;经过一段时间的生长,间伐林分的生物量渐近于未间伐林分生物量;间伐林分的树枝和树干生物量比未间伐林分大,间伐强度在弱度时树枝和树干生物量占总生物量比率较大;未间伐林分树叶生物量占总生物量比率比间伐林分大。
The biomass of Larix olgensis plantation is calculated using compatible biomass model,the biomass of total tree,bole,branches and foliage is analyzed.The results indicated that the biomass of stands after thinning is obviously less than that of control in initial stages,but the biomass of stands thinned will approach to control after some period of growth.The biomass of bole and branch from stands thinned were bigger than that of control,the rate of biomass of bole and branch in total biomass of light thinning is bigger than that of control.While the rate of biomass of bole and branch to total biomass in light thinning is bigger than orther thinning strength.For the control,the rate of biomass of the foliage to the total is bigger than that of stands thinned.
出处
《西北林学院学报》
CSCD
北大核心
2008年第6期69-73,共5页
Journal of Northwest Forestry University
基金
国家“十一五”科技攻关课题“东北天然林保护与可持续经营技术试验示范”(2006BAD03A08)
中央级公益性科研院所基本科研业务费专项资金“不同发展阶段的天然林生长模拟研究”(RIFRIGIZGZ2007005)
关键词
间伐
生物量
影响
thinning
biomass
influence
