摘要
改进的投影寻踪法是一种新方法,这种方法把每一个种源的多指标投影成一维的指标值,根据投影值的大小就可直接进行排序。以福建农林大学莘口教学林场杉木种源试验为例,采用改进的投影寻踪法开展杉木优良种源选择研究。结果表明:从生长快、生长量大、材性好的角度考虑,福建南平是最好的种源;闽北地区杉木种源的调拨以南平种源为佳,其次为湖南会同种源。这与实际试验结论相符,也与应用层次分析法所得的结论基本一致,应用改进投影寻踪法开展林木种源选择是可行的、科学的。
Selection of optimal provenances is a key link in breeding Cunningharnia lanceolata. In this study, a method of modified projection pursuit was employed to overcome difficulties in decision making in the selection of the optimal provenances. The modified projection pursuit method had been widely used in forest investigation in recent years. This method integrates the multidimensional classification indexes of every provenance into one-dimensional projection values, and it, therefore, is able to rank directly the indexes according to the projection size and provides a scientific basis in provenance selection of C. lanceolata. Based on the data of provenance test of C. lanceolata planted in Xinkou Experimental Forest of Fujian Agriculture and Forestry University, the modified projection pursuit method was used to study the selection of superior provenance for C. lanceolata. The results showed that the provenance from Nanping of Fujian Province was the best in terms of growth speed, productivity and high quality, followed by that in Huitong of Hunan Province. Consequently it is suggested to use Nanping Provenance for plantation in the north of Fujian. This result is consistent with that based on the field experiment, and also basically consistent with that by the analytic hierarchy process. It is concluded that the modified projection pursuit method is feasible in provenance selection.
出处
《林业科学》
CAS
CSCD
北大核心
2008年第3期56-61,共6页
Scientia Silvae Sinicae
基金
福建省自然科学基金重大基础研究项目(2001F007)资助
关键词
杉木
种源选择
改进的投影寻踪法
Cunninghamia lanceolata
selection for provenance
modified projection pursuit method
