红崖大峡谷华北落叶松群落乔木层种间关系研究  

Studies on the Relationship between Species in Arbor of Larix Principis-rupprechtii Mayr Community in Hongya Grand Canyon

作　　者：牛常青[1] 曲波[1] 韩小春 

机构地区：[1]晋中学院生物科学与技术学院,山西晋中030619 [2]西北农林科技大学园艺学院,陕西西安712100

出　　处：《晋中学院学报》2015年第3期60-63,共4页Journal of Jinzhong University

摘　　要：通过采用2×2列联表的Pearson相关分析和Spearman秩相关分析等方法对红崖大峡谷景区内的华北落叶松群落（海拔1900-2300 m）乔木层进行了种间关系的分析.结果表明,群落中的华北落叶松与其他物种呈现极显著的负相关,在一定海拔范围内和红桦、白桦竞争较为激烈,但在海拔2300 m至2400 m,华北落叶松占据绝对的生长优势,基本没有出现其他乔木的生长.The relationship among species in arbor of Larix principis-rupprechtii Mayr community in Hongya grand canyon were studied by using Fisher＇s exact test for 2 ×2 contingency table,Pearson correlation analysis and Spearman＇s rank correlation analysis. The results indicated that community of Larix principis rupprechtii and other species showed significant negate correlation,Larix principis rupprechtii and red birch,Betula platyphylla as accompanying species,the competition to a certain altitude range is more intense,but at an altitude of 2300 m to 2400 m,the growth of Larix principis rupprechtii occupies the overwhelming advantage,without other trees growing.

关 键 词：红崖大峡谷 华北落叶松 乔木层 种间关系 

分 类 号：Q948[生物学—植物学]