| 鞭角华扁叶蜂虫卵数模型研究 |
| |
| 引用本文： | 王维,马友平,王柏泉,田宗伟,左俊杰.鞭角华扁叶蜂虫卵数模型研究[J].生物数学学报,2011(4):683-688. |
| |
| 作者姓名： | 王维 马友平 王柏泉 田宗伟 左俊杰 |
| |
| 作者单位： | 湖北民族学院生物科学与技术学院;湖北巴东县林业局;恩施州森林病虫害防治站; |
| |
| 基金项目： | 湖北省教育厅自然科学研究重点项目(D200629005) |
| |
| 摘 要： | 该研究在野外获得了鞭角华扁叶蜂虫卵数与生境因子海拔、胸径、树高、海拔、冠幅坡向的数据;内业利用Matlab7软件分别建立了鞭角华扁叶蜂虫卵数的全变量模型、逐步回归模型和主成分模型,三模型的复相关系数R~2分别为0.9204,0.91841和0.9289,均方误差RMSE分别为322.4069,331.7300和310.9550,从两个系数看,得出一致结论以主成分法拟合最佳.逐步回归模型只采用了两个因子即树高和冠幅,主成分法采用了前三个主成分量,其信息量达93.6359%,可代表原特征变量的大部分信息.
|
| 关 键 词： | 鞭角华扁叶蜂 虫卵 主成分分析 逐步回归模型 全变量模型 |
Study on the Models for the Number of Chinolyda Flagellicornis Eggs |
| |
| WANG Wei MA You-ping WANG Bai-quan TIAN Zong-wei ZUO Jun-jie.Study on the Models for the Number of Chinolyda Flagellicornis Eggs[J].Journal of Biomathematics,2011(4):683-688. |
| |
| Authors: | WANG Wei MA You-ping WANG Bai-quan TIAN Zong-wei ZUO Jun-jie |
| |
| Institution: | WANG Wei~1 MA You-ping~1 WANG Bai-quan~1 TIAN Zong-wei~2 ZUO Jun-jie~3 (1 School of Biological Science and Technology.Hubei University for Nationalities.Enshi Hubei 445000 China) (2 Badong Forestry Bureau in Hubei Province,Badong Hubei 445300 China) (3 Enshi Forest Pest.Prevention and.Control Station,Enshi Hubei 445000 China) |
| |
| Abstract: | This study obtained the number of Chinolyda flagellicornis eggs and the data of habitat factors in altitude,DBH,tree height and crown aspect through survey in the field.The software Matlab7 was used to establish three models for the number of Chinolyda flagellicorn.is eggs,namely,full variable model,stepwise regression model and principal component models.The multiple correlation coefficient R~2 of the three models was 0.9204,0.918413 and 0.9289 respectively and the root mean square error(RMSE) was 322.4069... |
| |
| Keywords: | Chinolyda flagellicornis Eggs Principal component analysis Stepwise regression model Model |
| 本文献已被 CNKI 维普 等数据库收录！ |
