Study on Tree Mortality Model for Pinus tabulaeformis Plantation

doi:10.13466/j.cnki.lyzygl.2008.02.012

FOREST RESOURCES WANAGEMENT ›› 2008›› Issue (2): 51-56.doi: 10.13466/j.cnki.lyzygl.2008.02.012

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Study on Tree Mortality Model for Pinus tabulaeformis Plantation

LIU Ping^1,2, MA Luyi¹, JIA Liming¹, WANG Yutao¹

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education,Beijing Forestry University, Beijing 100083, China;
2. Shenyang Agricultural University, Shenyang 110161, China

Received:2007-10-13 Revised:2008-03-01 Online:2008-04-28 Published:2020-11-30

Abstract

Abstract: Tree mortality model is an important part of tree growth and yield model system.This paper widely studies tree mortality model of overseas and domestic documents. Logistic model was used to model tree mortality of Pinus tabulaeformis based on the data from 105 remeasured plots in Beijing.Independent variables are tree size, competition and stand density index.The result shows tree mortality rate is gradually decreasing in 5-15cm and is gradually increasing with competition and stand density increasing. The test data for Pinus tabu Laeformis are used to test the mortality model. The result shows that the observed value of tree mortality rate has not significant difference with predicted value.So,this model can be used in practice.

Key words: mortality model, Pinus tabulaeformis plantation

CLC Number:

S711

LIU Ping, MA Luyi, JIA Liming, WANG Yutao. Study on Tree Mortality Model for Pinus tabulaeformis Plantation[J]. FOREST RESOURCES WANAGEMENT, 2008, (2): 51-56.

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Study on Tree Mortality Model for Pinus tabulaeformis Plantation

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