南京林业大学学报(自然科学版)Issue(5):11-14,4.DOI:10.3969/j.issn.1000-2006.2014.05.003
基于极值理论的落叶松人工林自稀疏线估计
Estimation of self-thinning line for larch plantation based on extreme values
摘要
Abstract
Due to the existence of severe interference on real stands, little stands reach its full stocking. Methods from statistics of extreme values were used to study the self-thinning line for larch ( Larix olgensis Henry) plantation. After de-termining a threshold, the generalized Pareto distribution function was used to fit the threshold excesses. The extreme maximum number of stem that a stand can support was abtained. The relationship between the maximum number and di-ameter revealed the self-thinning line through analysis of regression.Using 1 511 pots data collected from several area of Heilongjiang as an example. The self-thinning line for larch plantation was obtained. Results obtained in this paper were consist with the Reineke equation.关键词
落叶松人工林/自稀疏线/极值统计/Pareto模型/Reineke公式Key words
larch plantation/self-thinning line/statistics of extreme/Pareto model/Reineke equation分类
农业科技引用本文复制引用
邓文平,李凤日..基于极值理论的落叶松人工林自稀疏线估计[J].南京林业大学学报(自然科学版),2014,(5):11-14,4.基金项目
中央高校基本科研业务费专项资金项目 ()