摘要
对７４株１０年生泡桐主干与树冠生长相关关系进行了调查，并利用回归分析方法建立了主干与树冠生长的数学模型．经实例分析检验表明，培养 １０年生主干高 ６．０ ｍ，胸径３０．６２ｃｍ的泡桐树需要８．１６ ｍ和７．６０ ｍ的冠幅和冠高，泡桐的合理干冠比值为０．７９．该模型切合生产实际，为泡桐高干定向培育提供了理论依据．
This paper dealt with the mathematical model between paulownia stem height and its crown with regression analysis through investigating the growth of stem height and crown of 74 10-year-old trees. The results showed that it required 8.16 m crown diameter and 7. 60 m crown height to foster 10-year-old paulowina with 6. 0 m stem height and 30. 62 cm breast height diameter. The rational ratio of main stem height to crown diameter was 0.79. this model was integrated with practical production and laid a theoretical foundation for the directive breeding of highly stem paulownia tree.
出处
《河南农业大学学报》
CAS
CSCD
2000年第2期127-129,共3页
Journal of Henan Agricultural University
基金
河南省林业厅资助项目!(96001)
关键词
泡桐
主干
树冠
数学模型
生长发育
paulownia
stem
crown
mathematical model
regression analysis
