摘要
通过对解析木材料的分析,得出树木生长的拟合经验方程,即以树木生长量为因变量、以年均气温为自变量的函数,并对该函数进行求导等数学运算。结果表明:树木生长的气温相对贡献率平均为74.1%,光照为73.7%,降水为73.9%,表明三者对树木的生长具有同等重要的作用。
According to the data of parse wood,fitting empirical equation for gorwth of trees was obtained, such as this, the function by taking tree growth as dependent variable and taking average annual temperature as independent variable.Through a derivation of the function operation, result shows that:Relative temperature contribution rate of growth rate of trees is 74.1%, and is 73.7% by sunlight,is 73.9% by rainfall.Therefore, the three have an equally important role in the growth of trees.
作者
孙小珺
孙杰
尹若波
张德全
王克华
于凌飞
张靖
Sun Xiaojun;Sun Jie;Yin Ruobo;Zhang Dequan;Wang Kehua;Yu Lingfei;Zhang Jing(Longkou Forest Pest Control Station, Shandong Province,Yantai 265701,China;Longkou State-owned Forest Farm,Yantai 265701,China;Shandong Province Forestry Foreign Investment and Project Management, Jinan 250014,China;Forestry Survey and Planning Institute of Shandong Province, Jinan 250014,China)
出处
《防护林科技》
2019年第10期23-25,共3页
Protection Forest Science and Technology
关键词
经验方程
气温
树木生长
empirical equation
air temperature
growth of tree
