西北林学院学报2001，Vol.16Issue(4)：1-5，12,6.
KOSTELEC地区西黄松林木个体胸高断面积生长分析
Growth Analysis of Individual Tree Basal Area of Western Yellow Pine Introduced in Kostelec Region
廖超英 1PODRAZSKY 2Vilem3
作者信息
- 1. 西北农林科技大学资源环境学院,
- 2. 捷克农业大学林学院,
- 折叠
摘要
Abstract
Four theoretical growth functions,the Mitscherlich,Logistic,Gompertz and Korf functions were applied to the basal area growth data of individual Western Yellow Pine(Pinus ponderosa)trees to model the basal area growth.The current increment,mean increment and growth intensity of basal area as functions of age were given by derivation from the best fit growth function.The growth process of basalarea was divided into three periods by the two inflexion points of the current increment curve of basal area. The results indicated that the Korf function fitted the basal area growth best,followed by the Gompertz, Logistic and Mitscherlich functions.The maximum values of the current increment and the mean increment appeared at age 7 years and age 15 years respectively.The average growth intensity of basal area was 0.3243.During the rapid growth period(3 to 11 years) the average increment of basal area per year was 0.001 474 m2.关键词
西黄松/胸高断面积/生长分析/Gompertz方程/Korf方程/Logistic方程/Mitscherlich方程分类
农业科技引用本文复制引用
廖超英,PODRAZSKY,Vilem..KOSTELEC地区西黄松林木个体胸高断面积生长分析[J].西北林学院学报,2001,16(4):1-5，12,6.
