Differences in xylogenesis between dominant and suppressed trees

doi:10.1002/ajb2.1089

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	Differences in xylogenesis between dominant and suppressed trees
	Liu, Shushan 1,2; Li, Xiaoxia 1; Rossi, Sergio 3,4; Wang, Lily 5; Li, Wei6 ; Liang, Eryuan 1,7; Leavitt, Steven W.8
刊名	AMERICAN JOURNAL OF BOTANY
	2018-05-01
卷号	105 期号:5 页码:950-956
关键词	Abies fabri cambial activity competition Pinaceae secondary growth Tibetan Plateau
ISSN号	0002-9122
DOI	10.1002/ajb2.1089
英文摘要	PREMISE OF THE STUDY: Most dendroecological studies focus on dominant trees, but little is known about the growing season of trees belonging to different size classes and their sensitivity to biotic factors. The objective of this study was to compare the dynamics of xylem formation between dominant and suppressed trees of Abies fabri of similar age growing in the Gongga Mountains, southeastern Tibetan Plateau, and to identify the association between xylem growth and climate. METHODS: The timing and duration of xylogenesis in histological sections were investigated weekly during the 2013-2015 growing seasons. KEY RESULTS: Our investigation found that timing and duration of xylogenesis varied with canopy position and its associated tree size. Xylogenesis started 6-14 days earlier, and ended 5-11 days later in dominant trees than in suppressed trees, resulting in a significantly longer growing season. Dominant trees also exhibited higher temperature sensitivity of tracheid production rate than suppressed trees. CONCLUSIONS: The observed differences in xylogenesis among trees suggested that competition affects tree growth by reducing the growing period in suppressed trees. Representative climate-growth relationships should involve trees of all size classes when evaluating the effects of the environment on forest dynamics.
语种	英语
出版者	BOTANICAL SOC AMER INC
WOS记录号	WOS:000435766500014
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/23335]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Liang, Eryuan
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Quebec Chicoutimi, Lab Ecol Vegetale, Dept Sci Fundamentals, 555 Blvd Univ, Chicoutimi, PQ G7H 2B1, Canada 4.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 6.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 7.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 8.Univ Arizona, Lab Tree Ring Res, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Liu, Shushan,Li, Xiaoxia,Rossi, Sergio,et al. Differences in xylogenesis between dominant and suppressed trees[J]. AMERICAN JOURNAL OF BOTANY,2018,105(5):950-956.
APA	Liu, Shushan.,Li, Xiaoxia.,Rossi, Sergio.,Wang, Lily.,Li, Wei.,...&Leavitt, Steven W..(2018).Differences in xylogenesis between dominant and suppressed trees.AMERICAN JOURNAL OF BOTANY,105(5),950-956.
MLA	Liu, Shushan,et al."Differences in xylogenesis between dominant and suppressed trees".AMERICAN JOURNAL OF BOTANY 105.5(2018):950-956.