干旱区生态环境知识资源中心(Arid): Variation in the nitrogen concentration of the leaf, branch, trunk, and root in vegetation in China

Arid

DOI	10.1016/j.ecolind.2018.09.031
	Variation in the nitrogen concentration of the leaf, branch, trunk, and root in vegetation in China
	Zhao Hang 1,2; He Nianpeng 1,2; Xu Li 1; Zhang Ximin 3; Wang Qiufeng 1,2; Wang Bin 4; Yu Guirui 1,2
通讯作者	Yu Guirui
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2019
卷号	96 页码:496-504
英文摘要	Nitrogen (N) is an essential nutrient that is important for plant growth and productivity. How plants distribute N in different plant organs is aligned to the N use strategy of plants, and, in turn, provides an accurate way of assessing N storage in vegetation at the regional scale. Here, we analyzed variation in N concentrations across different organs and at different spatial scales. Specifically, we obtained 13,526 observations of plant N in China from consistent field measurements and from the published literature. The results showed that N concentration was significantly different across different plant organs (leaf, branch, trunk, and root), with more active organs having higher N. For forests, N concentration was ordered as: leaf (17.35 g kg(-1)) > root (6.66 g kg(-1)) > branch (6.47 g kg(-1)) > trunk (2.79 g kg(-1)). Similar trends were observed in grasslands, deserts, and wetlands. The N concentration of different plant organs significantly differed among different vegetation types [e.g., leaf N was ordered as: grassland (19.20 g kg(-1)) > desert (17.91 g kg(-1)) > forest (17.35 g kg(-1)) > wetland (14.58 g kg(-1))]. Furthermore, N concentration in different plant organs significantly differed across various regions. With increasing latitude and decreasing mean annual temperature, the N concentration of different plant organs increased, to some extent. Our findings provide new insights about the differences in the N use strategy of plants across plant organs and at different spatial scales. In conclusion, the data assimilated here provide a systematic reference point for estimating vegetation N storage at different scales.
英文关键词	Distribution Ecosystem Nitrogen Plant Pattern Organ China
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000464889600049
WOS关键词	CARBON ; PLANTATIONS ; STORAGE ; LIMITATION ; ALLOCATION ; DEPOSITION ; FORESTS
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/2XILL650/215183
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 3.Chaoyang Engn Tech Sch, Chaoyang 122000, Liaoning, Peoples R China; 4.Liaocheng Univ, Sch Environm & Planning, Liaocheng 252000, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhao Hang,He Nianpeng,Xu Li,et al. Variation in the nitrogen concentration of the leaf, branch, trunk, and root in vegetation in China[J]. 中国科学院地理科学与资源研究所,2019,96:496-504.
APA	Zhao Hang.,He Nianpeng.,Xu Li.,Zhang Ximin.,Wang Qiufeng.,...&Yu Guirui.(2019).Variation in the nitrogen concentration of the leaf, branch, trunk, and root in vegetation in China.ECOLOGICAL INDICATORS,96,496-504.
MLA	Zhao Hang,et al."Variation in the nitrogen concentration of the leaf, branch, trunk, and root in vegetation in China".ECOLOGICAL INDICATORS 96(2019):496-504.