气候变化领域集成服务门户(CCPortal): Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes

CCPortal

DOI	10.1186/s12870-022-03486-z
	Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes
	Guo, Aixia; Zuo, Xiaoan; Zhang, Senxi; Hu, Ya; Yue, Ping; Lv, Peng; Li, Xiangyun; Zhao, Shenglong; Yu, Qiang
通讯作者	Zuo, XA (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China. ; Zuo, XA (通讯作者)，Key Lab Stress Physiol & Ecol Cold & Arid Reg, Lanzhou 730000, Gansu, Peoples R China. ; Zuo, XA (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	1471-2229
卷号	22 期号:1
英文摘要	Background Inter- and intraspecific variation in plant traits play an important role in grassland community assembly under global change scenarios. However, explorations of how these variations contribute to the responses of community traits to nitrogen (N) addition and drought in different grassland types are lacking. We measured the plant height, leaf area (LA), specific leaf area (SLA), leaf dry matter content (LDMC), leaf N content (LNC) and the ratio of leaf carbon (C) to leaf N (C:N) in a typical and a meadow steppe after three years of N addition, drought and their interaction. We determined the community-weighted means (CWMs) of the six traits to quantify the relative contribution of inter- and intraspecific variation to the responses of community traits to N addition and drought in the two steppes. Results The communities in the two steppes responded to N addition and the interaction by increasing the CWM of LNC and decreasing C:N. The community in the meadow steppe responded to drought through increased CWM of LNC and reduced C:N. Significant differences were observed in SLA, LDMC, LNC and C:N between the two steppes under different treatments. The SLA and LNC of the community in the meadow steppe were greater than those of the typical steppe, and the LDMC and C:N exhibited the opposite results. Moreover, variation in community traits in the typical steppe in response to N addition and drought was caused by intraspecific variation. In contrast, the shifts in community traits in the meadow steppe in response to N addition and drought were influenced by both inter- and intraspecific variation. Conclusions The results demonstrate that intraspecific variation contributed more to community functional shifts in the typical steppe than in the meadow steppe. Intraspecific variation should be considered to understand better and predict the response of typical steppe communities to global changes. The minor effects of interspecific variation on meadow steppe communities in response to environmental changes also should not be neglected.
关键词	FUNCTIONAL TRAITS EXTREME DROUGHT STOICHIOMETRIC RESPONSES ENVIRONMENTAL GRADIENTS SPECIES TURNOVER VARIABILITY TEMPERATE DEPOSITION FRAMEWORK LEVEL
英文关键词	Community-weighted means; Drought; Inter- and intraspecific trait variation; Nitrogen addition; Plant functional traits; Typical and meadow steppes
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000762747800001
来源期刊	BMC PLANT BIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253710
作者单位	[Guo, Aixia; Zuo, Xiaoan; Zhang, Senxi; Hu, Ya; Yue, Ping; Li, Xiangyun; Zhao, Shenglong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China; [Guo, Aixia; Hu, Ya; Lv, Peng; Li, Xiangyun; Zhao, Shenglong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Guo, Aixia; Zuo, Xiaoan; Hu, Ya; Yue, Ping; Lv, Peng; Li, Xiangyun; Zhao, Shenglong] Key Lab Stress Physiol & Ecol Cold & Arid Reg, Lanzhou 730000, Gansu, Peoples R China; [Zuo, Xiaoan; Lv, Peng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China; [Yu, Qiang] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 10008, Peoples R China
推荐引用方式 GB/T 7714	Guo, Aixia,Zuo, Xiaoan,Zhang, Senxi,et al. Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes[J]. 中国科学院西北生态环境资源研究院,2022,22(1).
APA	Guo, Aixia.,Zuo, Xiaoan.,Zhang, Senxi.,Hu, Ya.,Yue, Ping.,...&Yu, Qiang.(2022).Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes.BMC PLANT BIOLOGY,22(1).
MLA	Guo, Aixia,et al."Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes".BMC PLANT BIOLOGY 22.1(2022).