昆明地区松梢螟(Dioryctria splendidella H.S.)为害对华山松(Pinus armandi Franh)生长量影响的初步研究

• 作 者: 曾凡杰
• 机 构: 云南省林勘六大队,
• 出 处: 云南林业调查规划
• 发表日期: 1980年04期
• 关键词: 华山松 松梢螟 用材树种 昆明地区 荒山造林 自然分布区 人工造林 生长率 天然林 通直

前言华山松(Pinus armandi Franh)为高大乔木,树干通直饱满,木材轻软多脂,材质优良,为云南主要用材树种之一。其中滇中、滇东分布比较普遍,它的垂直分布大致在海拔1600～3400米之间。喜生于气候温凉,湿润的地带。它不仅是现有天然林的主要组成树种之一,也是大面积荒山造林的主要用材树种。在自然分布区外,不少地区进行人工造林,如昆

Foreword Pinus armandi Franh is a tall tree, full of tree trunks, light and soft wood, good material, and is one of the main timber species in Yunnan. Among them, the distribution in central Yunnan and eastern Yunnan is relatively common, and its vertical distribution is roughly between 1600 and 3400 meters above sea level. Hi born in the climate cool, moist zone. It is not only one of the main tree species of the existing natural forests, but also the main timber species afforestation on a large area. In the natural distribution area, many areas for afforestation, such as Kun