文献类型：期刊文献

中文题名：天山云杉种子形态性状的地理变异

英文题名：Geographic variation of seed morphological traits of Picea schrenkiana var.tianschanica in Tianshan Mountains,Xinjiang of Northwest China

作者：刘贵峰[1,2] 臧润国[2] 刘华[3] 白志强[4] 郭仲军[4] 丁易[2]

第一作者：刘贵峰

机构：[1]内蒙古民族大学农学院;[2]中国林业科学研究院森林生态环境与保护研究所;[3]安徽农业大学林学与园林学院;[4]新疆林业科学院森林生态所

年份：2012

卷号：23

期号：6

起止页码：1455-1461

中文期刊名：应用生态学报

外文期刊名：Chinese Journal of Applied Ecology

收录：MEDLINE(收录号：22937630);CSTPCD;;Scopus(收录号：2-s2.0-84862259449);北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；PubMed;

基金：林业公益性行业科研专项(200904010);中央级公益性科研院所基本科研业务费专项(CAFRIF200716;CAFYBB2007040)资助

语种：中文

中文关键词：天山云杉;种子形态性状;海拔梯度

外文关键词：Picea schrenkiana var. tianschanica; seed morphological traits; altitudinal gradient.

分类号：S718

摘要：以新疆天山山脉从西到东不同经度3个地点(昭苏、天池和奇台)的天山云杉林为对象,沿海拔梯度采集不同地点的天山云杉球果,分析其种子性状(种鳞长、种鳞宽、种鳞长宽比、种翅长、种翅宽、种翅长宽比、种子长、种子宽和种子长宽比)的变化.结果表明:随海拔的升高,天山云杉种子性状(种子宽除外)总体呈现下降的趋势;除种翅宽、种子宽和种子长宽比与海拔的相关性不显著外,种子其他性状与海拔均呈显著负相关;种鳞长、种鳞宽、种鳞长宽比与经度呈现显著正相关;种鳞长、种鳞长宽比、种翅长宽比与坡度呈显著负相关;除种翅宽外,种子其他性状与坡向相关性均不显著.海拔是影响天山云杉种子的种鳞长、种鳞长宽比和种翅长宽比的主要因子.
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 longi- tude. 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.