气候变化领域集成服务门户(CCPortal): Coordination of leaf and root economic space in alpine coniferous forests on the Tibetan Plateau

CCPortal

DOI	10.1007/s11104-023-06381-0
	Coordination of leaf and root economic space in alpine coniferous forests on the Tibetan Plateau
	Ding, Junxiang; Wang, Qitong; Ge, Wenjing; Liu, Qing; Kong, Deliang; Yin, Huajun
发表日期	2023
ISSN	0032-079X
EISSN	1573-5036
英文摘要	Background and aimsCoordination between leaf and root traits is crucial to plant performance and ecosystem functioning, but how leaves and roots coordinate in ectomycorrhizal (ECM)-dominated alpine forests remains unclear. Therefore, the covariation patterns of leaf and root traits of ECM-dominated alpine conifers and the environmental drivers were examined.MethodsFive pairs of key leaf (i.e., leaf thickness [LT], specific leaf area [SLA], leaf tissue density [LTD], leaf N and P concentrations) and fine-root traits (i.e., root diameter [RD], specific root length [SRL], root tissue density [RTD], root N and P concentrations) were measured across 49 alpine coniferous populations (including 8 coniferous species) on the Tibetan Plateau.ResultsRoot traits including RTD, root N and P concentrations and leaf traits such as LT, SLA, LTD, leaf N and P concentrations were correlated. The root-leaf relationships represent a tradeoff between resource conservation and fast plant growth, i.e., plant economic spectrum. RD and SRL were independent from the plant economic spectrum. Temperature drove variations in the leaf traits, RTD, root N and P concentrations, and conifers under low temperature had denser leaves and roots (i.e., larger LT, LTD, RTD) and lower nutrient contents. Precipitation primarily controlled variations in RD and SRL, and roots became thinner with decreasing precipitation.ConclusionOur study demonstrates divergent roles of temperature and precipitation in driving the coordination of leaf and root economic traits in the ECM-dominated alpine coniferous ecosystems. This is insightful for a comprehensive understanding of the adaptation and responses of alpine forests to climate change.
关键词	Alpine forests ECM-dominated conifers Leaf-root coordination Leaf and fine-root traits Plant economic spectrum Plant adaptive strategies
英文关键词	BRANCH ORDER; TRAITS; SPECTRUM; NITROGEN; SOIL; RESPIRATION; DIMENSIONS; STRATEGIES; PATTERNS; DRIVERS
WOS研究方向	Agronomy ; Plant Sciences ; Soil Science
WOS记录号	WOS:001114034100001
来源期刊	PLANT AND SOIL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283816
作者单位	Zhengzhou University; Chinese Academy of Sciences; Chengdu Institute of Biology, CAS; Chinese Academy of Sciences; Chengdu Institute of Biology, CAS; Henan Agricultural University
推荐引用方式 GB/T 7714	Ding, Junxiang,Wang, Qitong,Ge, Wenjing,et al. Coordination of leaf and root economic space in alpine coniferous forests on the Tibetan Plateau[J],2023.
APA	Ding, Junxiang,Wang, Qitong,Ge, Wenjing,Liu, Qing,Kong, Deliang,&Yin, Huajun.(2023).Coordination of leaf and root economic space in alpine coniferous forests on the Tibetan Plateau.PLANT AND SOIL.
MLA	Ding, Junxiang,et al."Coordination of leaf and root economic space in alpine coniferous forests on the Tibetan Plateau".PLANT AND SOIL (2023).