摘要
根据对辛家山林区锐齿栎叶生长过程定期连续破坏性测定的7000余叶样,应用微机进行统计分析,建立了叶面积二重几何求算方程和叶面积与叶长、叶宽的线性回归方程,并比较了两种方法的优劣,同时用取自小陇山和火地塘林区的5500片叶样对几何求算方程的精度进行了检验,结果表明相对误差均小于4％。
7000 leaf samples were measured successively and destructively at regular intervals in the growth period of Quercus ailena var. acuteserata in Xinjiashang forest region. Two dimensional geometic equation for calculating leaf areas and a linear regression equation for leaf area and leaf length and leaf width were derived by statistical analysis on microcomputer. The results of these two methods were compared. The precision of gemoetric equation was also examined with leaf samples from Xiaolongsh-an and Houditang forest regions. The results showed that relative errors were less than 4%.
出处
《西北林学院学报》
CSCD
1991年第1期91-94,共4页
Journal of Northwest Forestry University
关键词
锐齿栎
叶面积
Quercus aliena var. acuteserrata
leaf area
growth analysis
Xinjiashan
