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|Table of Contents|

基于极值理论的落叶松人工林自稀疏线估计(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2014年05期
Page:
11-14
Column:
专题报道
publishdate:
2014-09-30

Article Info:/Info

Title:
Estimation of self-thinning line for larch plantation based on extreme values
Article ID:
1000-2006(2014)05-0011-04
Author(s):
DENG Wenping LI Fengri*
College of Science,Northeast Forestry University,Harbin 150040,China
Keywords:
larch plantation self-thinning line statistics of extreme Pareto model Reineke equation
Classification number :
S757
DOI:
10.3969/j.issn.1000-2006.2014.05.003
Document Code:
A
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 determining 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 diameter 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.

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Last Update: 2014-10-31