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林业科学 ›› 1998, Vol. 34 ›› Issue (zk): 11-15.

• 论文及研究报告 • 上一篇    下一篇

毛竹枝、叶生物量模型研究

洪伟,郑郁善,陈礼光   

  1. 福建林学院 南平 353001
  • 出版日期:1998-05-25 发布日期:1998-05-25

STUDY ON BIOMASS MODELS OF BRANCHES AND LEAVES OF PHYLLOSTACHYS HETEROCYCLA CV.PUBESCENS

Wei Hong,Yushan Zheng,Liguang Chen   

  1. Fujian College of Forestry Nanping 353001
  • Online:1998-05-25 Published:1998-05-25

摘要:

毛竹枝、叶生物量是毛竹生态系统中经济指标和生态指标最基本的数量特征。本文系统阐述了林分各因子与毛竹枝、叶生物量之间的相互关系,进行线性和非线性数学模型拟合,用相关系数和标准差进行模型初选,再用共线性测定来决定自变量取舍与Cp值和方差膨胀系数作比较分析,选出最优的、高精度、实用可行的数学模型组,以便指导生产实践。

关键词: 毛竹, 生物量, Cp值, 共线性测定

Abstract:

In the bamboo forest ecosystem, the bamboo yield is the essentially quantitative features of the economic targets and the ecological index.The correlation between the yield of branches and leaves and the factors of the bamboo stand are elaborated in this paper, and the mathematical linear and non-linear models are simulated. According to the correlation coefficient and the standard error, the models are primarily chosen. With the colinearity determination to decide which to use and to compare the Cp value with VIC (Variance inflation factor), the optimum mathematical models were obtained, which were high precision and practical, so as to guide production practice.

Key words: Phyllostachys heterocycla cv.pubescens, Biomass, The Cp value, The determination of colinearity