摘要
本文针对１９８５年及１９９２年森林资源二类调查资料，采用列联表方法，对毛竹林立竹密度与海拔及林分平均胸径对毛竹林分布的影响进行卡方检验、剩余分析和ｌｏｇ－线性模型拟合，得出：闽北毛竹林密度多在１８００株／ｈｍ２以下，胸径为第四级（８ｃｍ）以下，海拔最适分布区为４００－１０００ｍ；现实毛竹林密度及平均胸径偏低，应提高毛竹林经营水平，促使林分达到合理结构以实现速生丰产的目标。
The studies demonstrated that(1)most of the densities of Phyllostachys Pubescens
forests were un-der 1800 bamboos/hm2 in North Fujian,their dbh was under Class
Four(8cm)and the optimal altitude dis-tribution area was between 400m and 1000m,And(2)the
actual densities and the average dbh of Ph.puhescens forests were on the low side.The level of
managing Ph.pubescens forests should be raised to pro-mote the stands to reach reasonable
structures ln order to realize the fast growing and high yield target
出处
《福建林业科技》
1995年第3期40-46,共7页
Journal of Fujian Forestry Science and Technology
关键词
毛竹林
密度
平均胸径
Phyllostachys
pubescens forests
contingency table
standing bamboo densities
altitude
average dbh
