摘要
本研究以大兴安岭农林科学院基地施业区兴安落叶松人工林为研究对象,采用2001-2005年的12块复测样地数据,通过分析单株林木的枯损率与单木各调查因子之间的关系,应用Logistic方程建立了兴安落叶松人工林单木枯损模型。结果表明,胸径是影响林木枯损最重要的因子,直径越小,单木枯损概率越大。
The data used to develop individual tree mortality probability model for Larix olgensis plantation were collected from 12 periodic permanent sample plots from 2001-2005 in Base area facilities industry of Daxing'anling Academy of Agriculture and Forestry,Based on analyzing relationship between individual tree mortality probability and tree surveying factors,the individual tree mortality probability model for Larix olgensis plantation had been developed based on Logistic equation.Besides,the diameter of trees was significantly related to mortality from the individual tree mortality probability model.As diameter decrease,the mortality probability of individual increased.
出处
《林业勘查设计》
2011年第3期59-61,共3页
Forest Investigation Design
关键词
落叶松人工林
单木枯损率
模型
Larix olgensis plantation
individual tree mortality probability
model
