沙松生长与环境因子和气象因子相关规律的研究

Study on relationship between growth of Abies holophylla and meteorological factors and environmental factors

此项研究通过数量化理论 (Ⅰ )与多元回归分析、计算机迭代计算等方法 ,以 34年间观测积累的大量原始数据 ,对沙松生长与土层厚度等环境因子和年均气温等气象因子的相关关系及各因子的贡献率进行了深入地研究 ,判明沙松的生长和材积产量与土层厚度、坡位、坡向、坡度、年均气温、年积温 (≥ 10℃ )等因子都有不同程度的相关关系 ,尤其是与土层厚度、坡位、年均气温。

In this paper,great amount of data of Abies holophylla plantation in 34 years are processed with quantitative theory I and multifactor regression methods and other techniques.Some meteorological factors and environmental factors and their contribution to tree height and volume were calculated,which include soil depth,slope indexes,annual temperature,annual accumulated temperature and other factors.The results show that soil depth,slope position,annual temperature,annual accumulated temperature are the most important factors,and the others also correlated with tree growth.