干旱区生态环境知识资源中心(Arid): Mowing alters nitrogen effects on the community-level plant stoichiometry through shifting plant functional groups in a semi-arid grassland

Arid

DOI	10.1088/1748-9326/ab8a87
	Mowing alters nitrogen effects on the community-level plant stoichiometry through shifting plant functional groups in a semi-arid grassland
	Li, Shijie; Wang, Fuwei; Chen, Mengfei; Liu, Zhengyi; Zhou, Luyao; Deng, Jun; Dong, Changjun; Bao, Guocheng; Bai, Tongshuo; Li, Zhen; Guo, Hui; Wang, Yi; Qiu, Yunpeng; Hu, Shuijin
通讯作者	Qiu, YP
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2020
卷号	15 期号:7
英文摘要	Land-use practices such as mowing and nitrogen (N) fertilization can have significant impacts on plant stoichiometry. However, the interactive effects of mowing and N fertilization on the community-level plant stoichiometry and the underlying processes are not well understood. We examined the impacts of mowing (once a year) and N fertilization (12 g N m(-2)yr(-1)) on the community-level plant stoichiometry in a semi-arid grassland on the Loess Plateau. Results obtained showed that mowing alone had no effect on the community-level plant N or phosphorus (P) concentration. N fertilization alone significantly reduced the community-level plant P concentration, but did not affect the community-level plant N concentration, leading to an enhancement of plant N:P ratio. However, mowing altered the effects of N fertilization, leading to a higher plant N (and P) concentration than the fertilization-only plots. Also, mowing significantly reduced soil nitrate (NO3-), but increased soil temperature, photosynthetic active radiation, plant diversity, richness and gross ecosystem productivity. In addition, mowing and N fertilization significantly affected plant community composition through shifting dominant plant functional groups (PFGs) (e.g. asteraceae, forbs and grass). Further, our structural equation modeling analysis showed that shifts in PFGs played an important role in regulating plant stoichiometry under mowing and N fertilization. Together, these results illustrate that effective management of mowing and N fertilization may induce changes in soil limiting nutrients and shifts in plant community composition, potentially altering plant N:P stoichiometry at the community level.
英文关键词	Nitrogen fertilization mowing plant stoichiometry plant community structure plant diversity photosynthetic active radiation gross ecosystem productivity
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:000549163700001
WOS关键词	LOESS PLATEAU ; SOIL RESPIRATION ; SPECIES LOSS ; RESPONSES ; PHOSPHORUS ; DIVERSITY ; FERTILIZATION ; PRODUCTIVITY ; TERRESTRIAL ; DEPOSITION
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	中国科学院地球环境研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325065
作者单位	[Li, Shijie; Wang, Fuwei; Chen, Mengfei; Liu, Zhengyi; Zhou, Luyao; Bai, Tongshuo; Li, Zhen; Guo, Hui; Qiu, Yunpeng; Hu, Shuijin] Nanjing Agr Univ, Coll Resources & Environm Sci, Ecosyst Ecol Lab, Nanjing 210018, Peoples R China; [Wang, Yi] Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China; [Hu, Shuijin] North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 USA; [Deng, Jun; Dong, Changjun; Bao, Guocheng] Ningxia Yunwu Mt Grassland Nat Reserve Adm, Guyuan 756000, Peoples R China
推荐引用方式 GB/T 7714	Li, Shijie,Wang, Fuwei,Chen, Mengfei,et al. Mowing alters nitrogen effects on the community-level plant stoichiometry through shifting plant functional groups in a semi-arid grassland[J]. 中国科学院地球环境研究所,2020,15(7).
APA	Li, Shijie.,Wang, Fuwei.,Chen, Mengfei.,Liu, Zhengyi.,Zhou, Luyao.,...&Hu, Shuijin.(2020).Mowing alters nitrogen effects on the community-level plant stoichiometry through shifting plant functional groups in a semi-arid grassland.ENVIRONMENTAL RESEARCH LETTERS,15(7).
MLA	Li, Shijie,et al."Mowing alters nitrogen effects on the community-level plant stoichiometry through shifting plant functional groups in a semi-arid grassland".ENVIRONMENTAL RESEARCH LETTERS 15.7(2020).