闽北常绿阔叶林林分结构分析

目的]研究分析闽北常绿阔叶林林分结构。方法]以福建省浦城县常绿阔叶林为研究对象，利用样地调查数据进行林分直径结构和蓄积结构分析。结果]试验林分具有异龄林结构特征，随着径阶的增大，株数逐渐减少，符合反“J”型分布；但在各径级林木中，中、大径级林木株数比例小，而小径级林木株数比例较大；虽然林分生长率良好，但林分单位面积蓄积量较低，中小径级木蓄积所占的比例偏大。结论]为常绿阔叶林择伐经营策略提供了林分结构分析数据与理论指导。

Stand Structure Analysis of Evergreen Broad-leaved Forest in Northern Fujian

Objective] The research aimed to analyze the stand structure of evergreen broad-leaved forest in Northern Fujian.Method] Taking the evergreen broad-leaved forest in Pucheng County of Fujian Province as the research object,the diameter structure and accumulation structure were analyzed on the basis of the investigation data of sample plots.Result] The forests had the structural characteristics of forest with different ages.With the increase of path band,the number of trees reduced gradually,which obeyed a...