气候变化领域集成服务门户(CCPortal): Differences in xylogenesis between dominant and suppressed trees

CCPortal

DOI	10.1002/ajb2.1089
	Differences in xylogenesis between dominant and suppressed trees
	Liu, Shushan; Li, Xiaoxia; Rossi, Sergio; Wang, Lily; Li, Wei; Liang, Eryuan; Leavitt, Steven W.
通讯作者	Liang, E (通讯作者)
发表日期	2018
ISSN	0002-9122
EISSN	1537-2197
起始页码	950
结束页码	956
卷号	105 期号:5
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.
关键词	SPRUCE PICEA-ABIES CAMBIAL ACTIVITY TIBETAN PLATEAU COMPETITIVE STATUS GROWTH-RESPONSES WOOD FORMATION BOREAL FOREST ELEVATED CO2 DOUGLAS-FIR CLIMATE
英文关键词	Abies fabri; cambial activity; competition; Pinaceae; secondary growth; Tibetan Plateau
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000435766500014
来源期刊	AMERICAN JOURNAL OF BOTANY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259338
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]. 中国科学院青藏高原研究所,2018,105(5).
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).
MLA	Liu, Shushan,et al."Differences in xylogenesis between dominant and suppressed trees".AMERICAN JOURNAL OF BOTANY 105.5(2018).