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Differences in xylogenesis between dominant and suppressed trees
Liu, Shushan1,2; Li, Xiaoxia1; Rossi, Sergio3,4; Wang, Lily5; Li, Wei6; Liang, Eryuan1,7; Leavitt, Steven W.8
2018-05-01
Source PublicationAMERICAN JOURNAL OF BOTANY
ISSN0002-9122
Volume105Issue:5Pages:950-956
Corresponding AuthorLiang, Eryuan(liangey@itpcas.ac.cn)
AbstractPREMISE 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.
KeywordAbies fabri cambial activity competition Pinaceae secondary growth Tibetan Plateau
DOI10.1002/ajb2.1089
WOS KeywordSPRUCE PICEA-ABIES ; CAMBIAL ACTIVITY ; TIBETAN PLATEAU ; COMPETITIVE STATUS ; GROWTH-RESPONSES ; WOOD FORMATION ; BOREAL FOREST ; ELEVATED CO2 ; DOUGLAS-FIR ; CLIMATE
Indexed BySCI
Language英语
Funding ProjectChina Scholarship Council[201704910338] ; National Natural Science Foundations of China[41601204] ; National Natural Science Foundations of China[41271120] ; National Natural Science Foundations of China[41525001]
Funding OrganizationChina Scholarship Council ; National Natural Science Foundations of China
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000435766500014
PublisherBOTANICAL SOC AMER INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54608
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiang, Eryuan
Affiliation1.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
Recommended Citation
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.
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