Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau

doi:10.1093/aob/mcac065

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau
	Jia, Hengfeng 2; Fang, Ouya ; Lyu, Lixin
刊名	ANNALS OF BOTANY
	2022
卷号	130 期号:1 页码:85-95
关键词	Climatic limiting factors non-linear responses Tibetan Plateau tree-ring width VS-Lite model Juniperus tibetica Kom
ISSN号	0305-7364
DOI	10.1093/aob/mcac065
文献子类	Article
英文摘要	Background and Aims Tree growth in plateau forests is critically limited by harsh climatic conditions. Many mathematical statistical methods have been used to identify the relationships between tree growth and climatic factors, but there is still uncertainty regarding the relative importance of these factors across different regions. We tested major climatic limits at 30 sites to provide insights into the main climatic limits for juniper trees (Juniperus tibetica Kom.) across the southern Tibetan Plateau. Methods We analysed the linear and non-linear relationships between tree growth and climatic factors using Pearson correlation statistics and a process-based forward Vaganov-Shashkin-Lite (VS-Lite) model, respectively. These relationships were used to identify the strength of the influence of different climatic factors throughout the species' growing season and to identify the main climatic factors limiting tree growth. Key Results Growth of juniper trees began in April and ended in October in the study area. The radial growth of juniper trees was limited by soil moisture throughout the summer (June-August) of the current year at 24 sampling sites and was limited by temperature at the other six sites on the southern Tibetan Plateau. Conclusions Soil moisture limited juniper growth at the majority of sites. Temperature in the current summer limited the growth of juniper trees at a few sampling sites in the western part of the study area. Local climate conditions may contribute to different limiting factors in the growth response of trees on the southern Tibetan Plateau. These findings may contribute to our understanding of divergent forest dynamics and to sustainable forest management under future climate scenarios.
学科主题	Plant Sciences
电子版国际标准刊号	1095-8290
出版地	OXFORD
WOS关键词	TREE-RING WIDTH ; QINGHAI SPRUCE ; WHITE SPRUCE ; TEMPERATURE ; RESPONSES ; DROUGHT ; SOIL ; PRECIPITATION ; XYLOGENESIS ; CONIFERS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000814330500001
资助机构	Second Tibetan Plateau Scientific Expedition and Research Program (STEP) [2019QZKK0301] ; National Natural Science Foundation of China (NSFC) [31870460, 31700412, 41771060]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28679]
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Jia, Hengfeng,Fang, Ouya,Lyu, Lixin. Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau[J]. ANNALS OF BOTANY,2022,130(1):85-95.
APA	Jia, Hengfeng,Fang, Ouya,&Lyu, Lixin.(2022).Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau.ANNALS OF BOTANY,130(1),85-95.
MLA	Jia, Hengfeng,et al."Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau".ANNALS OF BOTANY 130.1(2022):85-95.