期刊论文

Study on Growth Model for Cunninghamia lanceolata Competition Based on W_V_Hegyi Tree Competition Index—Take Non-Commercial Forest of National Fushou Forest Farm in Hunan Province as an Example

中文

林业资源管理

1002-6622

2015

2

59-64

10.13466/j.cnki.lyzygl.2015.02.013

“十二五”国家科技支撑计划“生态公益林人工纯林多功能结构优化技术研究与示范”（2012BAD2280505） 湖南省研究生科研创新项目（CX20148341） 中南林业科技大学研究生科技创新基金资助项目（CX2014824） 湖南省自然科学基金项目（2015JJ3175）

本校为第一机构

根据湖南省福寿国有林场杉木生态公益林（幼龄林、中龄林、近熟林）复测数据，通过研究 Hegyi，V＿Hegyi，W＿V＿Hegyi 三种竞争指数与胸径的相关性，选择相关性最强的 W＿V＿Hegyi 竞争指数，构建单木竞争生长模型。以此为基础，用加权平均树高作为胸径生长量的权重，重新构建了单木竞争生长模型，并对 W＿V＿Hegyi 竞争指数分布规律进行分析，利用回归分析方法构建径阶竞争指数预估模型和径阶生长模型。通过基于加权胸径生长量与 W＿V＿Hegyi 竞争指数构建径阶生长模型，以期为林木从单木到林分的模拟提供新途径。

Based on the retest data of young,half-mature and near-mature Cunninghamia lanceolata eco-logical forest in Fushou National Forest Park of Hunan Province,the correlation among Hegyi,V Hegyi,W_V_Hegyi are studied.Among the three competition indexes,the W_V_Hegyi,which was the strongest, was chosed to construct individual competition tree model.Based on these,the weighted average tree height as the weight of DBH growth,rebuilt the individual tree model.And quantitative analysis was car-ried out on the competition index of the diameter class,and the regression analysis method was used to build pr...