摘要
采用逐步回归和典型相关分析方法,对分布在广东、广西、福建、浙江、江西、安徽6省( 区) 的274 株优树的产脂力、含油率、软化点和松香、松节油化学组分等18 个因子与经纬度进行分析,结果表明,各因子之间存在着不同的地理变异:即随着纬度的降低,产脂力、长叶松酸+ 左旋海松酸、新枞酸和去氢枞酸的含量由北向南递增;而含油率、莰烯、石竹烯、山达海松酸的含量则由北向南递减;并显示出产脂力与含油率和某些化学组分含量同时受经纬度的双重控制。
The methods of stepwise regression analysis and canonical correlation analysis were adopted to calculate 18 factors of 274 masson pine superior trees, which distributed over Guangdong, Guangxi, Jiangxi, Fujian, Zhejiang, Anhui province. The 18 factors include resin yield ability, oil length, softening point, the chemical composition of turpentine and resin and so on. There are different geographic variation between 18 factors. Resin yield ability, levopimaric+palustric acids, sandaracopimaric acid, neoabietic acid, dehydroabietic acid are increased from north to south, but oil length,camphene, caryophyllene, sandaracopimaric acid are decreased from north to south. It shows a tendency that resin yield ability, oil length, and some chemical composition of turpentine and resin are controlled by both the longitude and the latitude.\;
出处
《广东林业科技》
1999年第4期1-7,共7页
Forestry Science and Technology of Guangdong Province
关键词
马尾松
松脂化学组分
地理变异
STRPREG
CCA
Masson pine, pine resin, chemical composition, geographic variation, stepwise regression analysis, canonical correlation analysis
