干旱区生态环境知识资源中心(Arid): Spatial variation in leaf potassium concentrations and its role in plant adaptation strategies

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DOI	10.1016/j.ecolind.2021.108063
	Spatial variation in leaf potassium concentrations and its role in plant adaptation strategies
	Li, Xin; He, Nianpeng; Li Xu; Li, Shenggong; Li, Mingxu
通讯作者	Li, MX (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	130
英文摘要	Potassium (K) is an essential element for regulating plant growth and physiological metabolism. However, little information is available on large-scale spatial variations in leaf potassium concentrations (LKC) in different plant species, the variations in LKC, and the mechanism underlying these variations. Here, we measured LKC in 2781 plant species sampled from 78 typical ecosystems (including forests, grasslands, and deserts) in China. The average LKC was 18.30 g kg-1, and the minimum and maximum LKC were 0.35 and 52.65 g kg-1, respectively. The LKC differed significantly among plant life forms and climate zones. In addition, LKC had a significant spatial variation in China. The LKC increased with increasing latitude and was mainly affected by climatic variables, especially temperature, but was not constrained by phylogeny. Higher LKC was observed in lower-temperature regions, indicating a cold adaptation mechanism. Our finding demonstrated that LKC plays a role in plants' adaptation mechanisms at a large scale and extend the physiological function of LKC from leaves to biomes. Furthermore, it may provide a database for studying the basic model of N fluxes across ecological gradients.
英文关键词	Potassium Adaptation Element Spatial variation Environmental factor Taxonomy
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000692561800004
WOS关键词	TEMPERATE FORESTS ; P STOICHIOMETRY ; GLOBAL PATTERNS ; SOIL ; NUTRIENT ; NITROGEN ; VARIABILITY ; PHOSPHORUS ; TRAITS ; STRESS
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362995
作者单位	[Li, Xin; He, Nianpeng; Li Xu; Li, Shenggong; Li, Mingxu] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; [Li, Xin; He, Nianpeng] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin,He, Nianpeng,Li Xu,et al. Spatial variation in leaf potassium concentrations and its role in plant adaptation strategies[J]. 中国科学院地理科学与资源研究所,2021,130.
APA	Li, Xin,He, Nianpeng,Li Xu,Li, Shenggong,&Li, Mingxu.(2021).Spatial variation in leaf potassium concentrations and its role in plant adaptation strategies.ECOLOGICAL INDICATORS,130.
MLA	Li, Xin,et al."Spatial variation in leaf potassium concentrations and its role in plant adaptation strategies".ECOLOGICAL INDICATORS 130(2021).