摘要
在云南省开远市浑水塘试验地设置了35个20 m×20 m的标准地,对标准地内4 a生的主要造林树种墨西哥柏及4个供选伴生树种(羽叶山黄麻、新银合欢、直干桉、赤桉)地径、树高、胸径、冠幅分别进行测量,选择平均木,对平均木生物量、生长量进行测定.经数据分析后认为,新银合欢生长速度慢于墨西哥柏且枝少叶疏,适宜作为墨西哥柏的伴生树种,羽叶山黄麻冠幅虽大,但枝叶稀疏,可作为墨西哥柏的次适宜伴生树种.
Choosing 35 sample plots （20 m × 20 m） located in Huishuitang of Kaiyuan city as experi- mental sites, the Cupressus lusitanica and 4 associated species were studied, including measure basal di- ameter, tree height, DBH, crown diameter, biomass and growth increment of sample tree. These four associated species are Trema levigata, Leucaena leucocephala, Eucalyptus maideni, Eucalyptus camaldu- lensis. The results of indicates that the growth speed of L. leucocephala is slower than that of C. lusitani- ca, and with fewer branches and leaves, is a suitable associated species of C. lusitanica. T. levigata has big crown diameter, though the amount of branch and leaf is little, so it can be an option of associated species.
出处
《林业调查规划》
2009年第5期139-142,共4页
Forest Inventory and Planning
关键词
半干热地区
墨西哥柏
伴生树种选择
生物量
semi dry and hot area
Cupressus lusitanica
associated species selection
biomass
