Forest and Grassland Resources Research >
Large-scale Individual Tree Growth Models for Pinus massoniana in China
Received date: 2017-02-05
Revised date: 2017-03-24
Online published: 2020-10-10
Individual tree growth models are quantitative basis for predicting forest development and evaluating productivity potential in the future.Based on the mensuration data of sample trees of Masson pine (Pinus massoniana) in southern China,individual tree diameter and height growth models on national level were developed,and effects of region and origin on growth models were analyzed.The results showed that diameter growth model of Masson pine was only related to region,whereas height growth model was affected by both region and origin;coefficients of determination (R 2) of the developed population average (PA) diameter and height growth models were 0.79 and 0.71 respectively,and mean prediction precisions were more than 96%;R 2 of the diameter and height growth models with region and origin in variables were 0.83 and 0.74 respectively,and mean prediction precisions were all improved,indicating that the models were significantly better than the PA models.The growth models developed in this study could provide quantitative basis for forecasting stock volume,biomass and carbon storage of Masson pine forest on large scale.
Key words： Pinus massoniana; growth model; Logistic function; dummy variable; region; origin
Sihai LIU , Weisheng ZENG . Large-scale Individual Tree Growth Models for Pinus massoniana in China[J]. Forest and Grassland Resources Research, 2017 , 0(2) : 28 -33 . DOI: 10.13466/j.cnki.lyzygl.2017.02.006
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