摘要
以昆明西山林场火烧迹地自然更新的云南松幼龄林为研究对象,在研究区设置固定样地24块,每块固定样地面积100 m2,记录样地基本地形因子,测定每株树木的树高、胸径等测树因子。以1 cm为径阶距,采用6种理论生长方程模拟林分直径结构。结果表明:理论生长方程能较好地模拟林分直径结构,模型的拟合效果依次为Gompertz、Richards、Weibull、Logistic、Korf及Mitscherlich,除Mitscherlich模型外,其它模型的模拟精度相差不大。
The natural regeneration Pinus yunnaneneis young forests in burned forestland in Xishan Forest Farm of Kunming city were selected as the studied objects. Twenty four pieces of fixed samples in the study area were set and the main topographical factors of the samples were recorded. The measurement factors （tree height, diameter at breast height etc.） were measured. The diameter class was 1cm,taken 6 kinds of theoretical growth equations to simulate the stand structures of the natural regeneration P. yunnaneneis young forests. The results show that the theoretical growth equations were capable of simulating the stands’ diameter structure, the fitting effects of the 6 kinds of models ranked from best to average were as follows：Gompertz, Richards, Weibull, Logistic, Korf and Mitscherlich. Excepting Mitscherlich model, other models’ simulation accuracy was almost similar to each other.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2014年第3期49-52,共4页
Journal of Central South University of Forestry & Technology
基金
昆明市科技计划项目(2011-03-00-A-S-06-0001)
云南省教育厅基金(2012Y237
2012Y224)
关键词
云南松
火烧迹地
幼龄林
直径结构
理论生长方程
昆明西山林场
Pinus yunnaneneis
burned forestland
young forest
diameter distribution
theoretical growth evaluations
Xishan Forest Farm of Kunming City
