干旱区生态环境知识资源中心(Arid): Plant Nutrient Contents Rather Than Physical Traits Are Coordinated Between Leaves and Roots in a Desert Shrubland

Arid

DOI	10.3389/fpls.2021.734775
	Plant Nutrient Contents Rather Than Physical Traits Are Coordinated Between Leaves and Roots in a Desert Shrubland
	Jiang, Xiaoyan; Jia, Xin; Gao, Shengjie; Jiang, Yan; Wei, Ningning; Han, Cong; Zha, Tianshan; Liu, Peng; Tian, Yun; Qin, Shugao
通讯作者	Jia, X (corresponding author), Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing, Peoples R China. ; Jia, X (corresponding author), Beijing Forestry Univ, State Forestry & Grassland Adm, Key Lab Soil & Water Conservat, Beijing, Peoples R China.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	Although leaf economics spectrum (LES) has been extensively tested with regional and global datasets, the correlation among functional traits of desert plants remains largely unclear. Moreover, examinations on whether and how leaf and root traits are coordinated have yielded mixed results. We investigated variations in leaf and fine-root traits across 48 species in a desert community of northern China to test the hypotheses that (1) the leaf-trait syndrome of plant species in desert shrublands follows the predictions of the global LES, and is paralleled by a similar root-trait syndrome, (2) functional traits related to nutrient contents and resource uptake are tightly coordinated between leaves and fine roots in desert ecosystems where plant growth is limited primarily by dry and nutrient-poor conditions, and (3) traits as well as their relationships vary among functional groups. Our results partially supported the LES theory. Specific leaf area (SLA) was correlated with leaf tissue density, phosphorus content, and carbon-to-nitrogen ratio, but not with leaf nitrogen content. Specific root length (SRL) was not correlated with other fine-root traits, and fine-root traits were largely independent of each other. Therefore, fine-root traits did not mirror the leaf-trait syndrome. Fine-root nitrogen and phosphorus contents, nitrogen-to-phosphorous ratio, and carbon-to-nitrogen ratio all increased with analogous leaf traits, whereas SRL was not correlated with SLA. After phylogenetic effects were considered, nutrient contents and their ratios still displayed stronger coordination between leaves and fine roots than did SRL and SLA. The overall pattern of trait variations and relationships suggested differentiation among functional groups. Our results suggest that despite the absence of a root-trait syndrome, fine-root functions in the studied desert community were probably coordinated with leaf functions with respect to nutrient allocation and use.
英文关键词	functional trait plant functional type specific leaf area specific root length stoichiometry
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:000717621000001
WOS关键词	LEAF FUNCTIONAL TRAITS ; POTENTIAL GROWTH-RATE ; ECONOMICS SPECTRUM ; PHOSPHORUS ; PATTERNS ; NITROGEN ; AREA ; GRASSLAND ; CLIMATE ; SOIL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368266
作者单位	[Jiang, Xiaoyan; Jia, Xin; Gao, Shengjie; Jiang, Yan; Wei, Ningning; Han, Cong; Zha, Tianshan; Liu, Peng; Qin, Shugao] Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing, Peoples R China; [Jia, Xin; Zha, Tianshan; Liu, Peng; Tian, Yun; Qin, Shugao] Beijing Forestry Univ, State Forestry & Grassland Adm, Key Lab Soil & Water Conservat, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Xiaoyan,Jia, Xin,Gao, Shengjie,et al. Plant Nutrient Contents Rather Than Physical Traits Are Coordinated Between Leaves and Roots in a Desert Shrubland[J]. 北京林业大学,2021,12.
APA	Jiang, Xiaoyan.,Jia, Xin.,Gao, Shengjie.,Jiang, Yan.,Wei, Ningning.,...&Qin, Shugao.(2021).Plant Nutrient Contents Rather Than Physical Traits Are Coordinated Between Leaves and Roots in a Desert Shrubland.FRONTIERS IN PLANT SCIENCE,12.
MLA	Jiang, Xiaoyan,et al."Plant Nutrient Contents Rather Than Physical Traits Are Coordinated Between Leaves and Roots in a Desert Shrubland".FRONTIERS IN PLANT SCIENCE 12(2021).