摘要
本文在长期定位观测研究的基础上，根据生态学中的限制因子作用律（最小因子律和耐性定律）采用主成分分析和抛物线型函数多项式回归等多元分析技术，以计算机逐步逼近法筛选出复相关系数最大而剩余方差最小的方程式，由此分别建立了广西龙胜里骆和岑溪七坪两林区低海拔（３５０—４４０ｍ）杉木近、成熟林树高月（年）生长量与水热因子间的多元非线性相关模式。据模式的变量参数提出的水热指标与前人的研究结果基本一致。
ccording to the ecological limitation rule(the laws of tolerance and minmium factor), on the basis of the long-term fixed site abservations and by means of principal components analysis as well as multivariate analysis of parabolic functional multinomial regression, the equation, which has the maximum compound interrelation coefficient and the minimum residual error, was selected by computer in a step-by-step approaching way. Then a series of non-linear models for the relationship between monthly or yearly height growth and water-heat factors in the closed-or nearly mature Chinese-fir forests at Liluo of Longsheng and Qiping of Chenxi in Guangxi whose altitude ranges from 350m to 440m were selected. According to the variable parameters in the models, we identified a number of water -heat indices that are most suitable for the Chinese-fir height growth. These in dices are fundamentally coincidence with the results obtained by the others.
出处
《自然资源》
CSCD
北大核心
1995年第1期44-50,共7页
