应用生态学报2012，Vol.23Issue(6)：1455-1461,7.
天山云杉种子形态性状的地理变异
Geographic variation of seed morphological traits of Picea schrenkiana var.tianschanica in Tianshan Mountains, Xinjiang of Northwest China
摘要
Abstract
Taking the Picea schrenkiana var. tianschanica forests at three sites with different longitudes (Zhaosu, Tianchi, and Qitai) in Tianshan Mountains as the objects, the cones were collected along an altitudinal gradient to analyze the variation of their seed morphological traits ( seed scale length and width, seed scale length/width ratio, seed wing length and width, seed wing length/ width ratio, seed length and width, and seed length/width ratio). All the seed traits except seed width tended to decrease with increasing altitude. The seed traits except seed wing width, seed width, and seed length/width ratio all had significant negative correlations with altitude. Seed scale length and width and seed scale length/width ratio had significant positive correlations with longitude . Seed scale length, seed scale length/width ratio, and seed wing length/width ratio had significant negative correlations with slope degree. No significant correlations were observed between the seed traits except seed wing width and the slope aspect. Altitude was the main factor affecting the seed scale length, seed scale length/width ratio, and seed wing length/width ratio.关键词
天山云杉/种子形态性状/海拔梯度Key words
Picea schrenkiana var. tianschanica/ seed morphological traits/ altitudinal gradient分类
农业科技引用本文复制引用
刘贵峰,臧润国,刘华,白志强,郭仲军,丁易..天山云杉种子形态性状的地理变异[J].应用生态学报,2012,23(6):1455-1461,7.基金项目
林业公益性行业科研专项(200904010)和中央级公益性科研院所基本科研业务费专项(CAFRIF200716,CAFYBB2007040)资助. （200904010）
