干旱区生态环境知识资源中心(Arid): Patterns of nitrogen and phosphorus stoichiometry among leaf, stem and root of desert plants and responses to climate and soil factors in Xinjiang, China

Arid

DOI	10.1016/j.catena.2020.105100
	Patterns of nitrogen and phosphorus stoichiometry among leaf, stem and root of desert plants and responses to climate and soil factors in Xinjiang, China
	Luo, Yan; Peng, Qingwen; Li, Kaihui; Gong, Yanming; Liu, Yanyan; Han, Wenxuan
通讯作者	Han, WX (corresponding author), 818 South Beijing Rd, Urumqi 830011, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	199
英文摘要	Nitrogen (N) and phosphorus (P) play essential roles in plant growth and deserve more attention in desert ecosystems. Nutrients stoichiometry patterns across various plant organs can reflect the plants' trade-offs to obtain resources and their growth strategy. However, it is still unclear how these nutrients are allocated among desert plant organs and how they are related to the arid climate conditions. This study aimed to examine how plant N and P stoichiometry varies among the organs of desert plants, and how they respond to climate and soil factors. Therefore, we analyzed N and P stoichiometry of leaves, stems, and roots collected from 29 desert sites in Xinjiang, China, to achieve this goal. Our studies indicated that the mean N and P concentrations in the stems (17.5 +/- 0.2 and 1.0 +/- 0.02 mg g(-1), respectively) and roots (10.3 +/- 0.2 and 0.7 +/- 0.01 mg g(-1), respectively) were significantly lower than those in leaves (21.4 +/- 0.3 and 1.2 +/- 0.02 mg g(-1), respectively); the N:P ratio in stems (19.1 +/- 0.3) was significantly higher than those in mots (17.6 +/- 0.4), but N:P in leaves (18.2 +/- 0.3) was not significantly different from those in stems and mots. Across plant life forms, N and N:P of both leaves and roots were respectively higher in shrubs than those in trees and herbs, P in three organs were significantly lower in trees than those in shrubs and herbs. Moreover, our results demonstrated that most soil factors had direct influences on N and P stoichiometry among different organs, and climate factors had indirect effect on N and P stoichiometry by affecting soil factors. This study provided the N and P stoichiometric characteristics of desert plant organs and explored their relationships with environmental variables, which can help understand nutrient stoichiometry patterns and utilization strategy of N and P and their potential responses to global climate changes in the desert ecosystems of central Asia.
英文关键词	Arid region Climate factors Desert ecosystem Edaphic factors Nitrogen and phosphorus stoichiometry Plant organs
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000608022600017
WOS关键词	N-P RATIOS ; BIOLOGICAL STOICHIOMETRY ; NUTRIENT CONCENTRATIONS ; BIOMASS ALLOCATION ; GLOBAL ANALYSIS ; LIFE-FORM ; LEAVES ; STRATEGIES ; TEMPERATE ; TREE
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347779
作者单位	[Luo, Yan; Peng, Qingwen; Li, Kaihui; Gong, Yanming; Liu, Yanyan; Han, Wenxuan] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Luo, Yan; Peng, Qingwen; Li, Kaihui; Gong, Yanming; Liu, Yanyan] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Bayinbuluk Grassland Ecosyst Res Stn, Bayinbuluk 841314, Peoples R China; [Luo, Yan; Peng, Qingwen] Univ Chinese Acad Sci, Beijing 100039, Peoples R China; [Luo, Yan; Peng, Qingwen; Li, Kaihui; Gong, Yanming; Liu, Yanyan; Han, Wenxuan] CAS Res Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Luo, Yan,Peng, Qingwen,Li, Kaihui,et al. Patterns of nitrogen and phosphorus stoichiometry among leaf, stem and root of desert plants and responses to climate and soil factors in Xinjiang, China[J]. 中国科学院新疆生态与地理研究所,2021,199.
APA	Luo, Yan,Peng, Qingwen,Li, Kaihui,Gong, Yanming,Liu, Yanyan,&Han, Wenxuan.(2021).Patterns of nitrogen and phosphorus stoichiometry among leaf, stem and root of desert plants and responses to climate and soil factors in Xinjiang, China.CATENA,199.
MLA	Luo, Yan,et al."Patterns of nitrogen and phosphorus stoichiometry among leaf, stem and root of desert plants and responses to climate and soil factors in Xinjiang, China".CATENA 199(2021).