摘要
滇山杨林(Form Populus bonatii)是云南落叶阔叶林的一种类型。本文描述了哀牢山徐家坝地区滇山杨林的结构特征。根据树干解析材料,研究了滇山杨的树高、胸径和材积生长规律,并对滇山杨的心腐现象作了分析。笔者通过分析各树种在不同林层中数量情况,并根据它们的生物学特性及其所在立地条件的适合程度,对滇山杨林的演替趋势进行了讨论,作出近期演替方向的判断,以探讨加速常绿阔叶林恢复的途径。
The Populus bonatii forest is a type of deciduous broad-leaved forests in Yunnan.In this paper,the structure of the P.bonatii forest in Xujiaba region of the Ailao Mountains was described according to the data obtained from field investigation.Based on a stem analysis,the growth regularity of tree height,diameter at breast height(D.B.H.)and stem volume were studied,and an additional analysis on the presence of heartwood-rot was also made. Through a diversity analysis on tree species in different strata of the forest by referring to the stocking density,biological characteristics and suitability of each species,the successional trend of the P.bonatii forest was discussed, and the direction of succession in the near future was outlined to search the efficient ways of recovering the evergreen broad-leaved forest.
出处
《西南林学院学报》
1991年第1期33-40,共8页
Journal of Southwest Forestry College
关键词
滇山杨
生长规律
Populus bonatii
Growth regularity
Successional trend
