摘要
对开化县的杉木基地林现有林分结构和生产力的分析结果表明,目前该县杉木基地成林的林冠结构总体上是合理的,林分平均郁闭度为0.76,树冠重叠度为25.9％。但同时部分成林密度管理也存在一定的随意性,林分郁闭度在0.40～0.90之间变动。为严格成林密度管理制度,文中进行了杉木基地成林抚育间伐技术设计,分别不同立地条件林分确定了首伐期、间伐强度和间隔期等参数,并编制了抚育间伐技术模式表,供生产参考应用。
The results of analysing current Chinese fir stand structure and productility showed that the canopy density was normal in total, the average was 0.76 and the crown overlapped percentage was 25.9%. But,at same time, there were some problems in density management for parts of the base. The stand thinning technical parameter for Chinese fir planatation base in Kaihua county were studied and determined, such as the first thinning period, thinning intensity and interval, etc. At last the thinning technical regime was established.
出处
《浙江林学院学报》
CSCD
1991年第3期326-332,共7页
Journal of Zhejiang Forestry College
关键词
杉木
用材林
密度
管理
抚育
间伐
Chinese fir(Cunninghamia lanceolata Hook.)
density management
thinning technique
canopy density
