Temporal variability of foliar nutrients: responses to nitrogen deposition and prescribed fire in a temperate steppe

doi:10.1093/jpe/rtw022

	Temporal variability of foliar nutrients: responses to nitrogen deposition and prescribed fire in a temperate steppe
	Lu, Xiao-Tao ; Reed, Sasha 1; Hou, Shuang-Li ; Hu, Yan-Yu ; Wei, Hai-Wei ; Lu, Fu-Mei ; Cui, Qiang ; Han, Xing-Guo
	2017
发表期刊	BIOGEOCHEMISTRY
ISSN	0168-2563
卷号	133 期号:3 页码:295-305
摘要	Plant nutrient concentrations and stoichiometry drive fundamental ecosystem processes, with important implications for primary production, diversity, and ecosystem sustainability. While a range of evidence exists regarding how plant nutrients vary across spatial scales, our understanding of their temporal variation remains less well understood. Nevertheless, we know nutrients regulate plant function across time, and that important temporal controls could strongly interact with environmental change. Here, we report results from a 3-year assessment of inter-annual changes of foliar nitrogen (N) and phosphorus (P) concentrations and stoichiometry in three dominant grasses in response to N deposition and prescribed fire in a temperate steppe of northern China. Foliar N and P concentrations and their ratios varied greatly among years, with this temporal variation strongly related to inter-annual variation in precipitation. Nitrogen deposition significantly increased foliar N concentrations and N:P ratios in all species, while fire significantly altered foliar N and P concentrations but had no significant impacts on N:P ratios. Generally, N addition enhanced the temporal stability of foliar N and decreased that of foliar P and of N:P ratios. Our results indicate that plant nutrient status and response to environmental change are temporally dynamic and that there are differential effects on the interactions between environmental change drivers and timing for different nutrients. These responses have important implications for consideration of global change effects on plant community structure and function, management strategies, and the modeling of biogeochemical cycles under global change scenarios.
关键词	Ecological stoichiometry Ecosystem stability Inter-annual variation N:P ratio Nutrient limitation Primary productivity Semiarid grassland
学科领域	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
DOI	10.1093/jpe/rtw022
收录类别	SCI
语种	英语
WOS关键词	PHOSPHORUS LIMITATION ; ECOSYSTEM STABILITY ; SEMIARID ECOSYSTEMS ; LEAF PHOSPHORUS ; PLANT-GROWTH ; FRESH-WATER ; TERRESTRIAL ; STOICHIOMETRY ; SOIL ; AVAILABILITY
WOS记录号	WOS:000397126800007
出版者	SPRINGER
文献子类	Article
出版地	DORDRECHT
EISSN	1573-515X
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470505] ; National Key Research and Development Program [2016YFC0500601, 2015CB150802] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB15010403] ; Youth Innovation Promotion Association CAS [2014174] ; Key Research Program from CAS [QYZDB-SSW-DQC006, KFZD-SW-305-002]
作者邮箱	lvxiaotao@iae.ac.cn
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22113
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China 2.US Geol Survey, Southwest Biol Sci Ctr, 2290 SW Resource Blvd, Moab, UT 84532 USA 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xiao-Tao,Reed, Sasha,Hou, Shuang-Li,et al. Temporal variability of foliar nutrients: responses to nitrogen deposition and prescribed fire in a temperate steppe[J]. BIOGEOCHEMISTRY,2017,133(3):295-305.
APA	Lu, Xiao-Tao.,Reed, Sasha.,Hou, Shuang-Li.,Hu, Yan-Yu.,Wei, Hai-Wei.,...&Han, Xing-Guo.(2017).Temporal variability of foliar nutrients: responses to nitrogen deposition and prescribed fire in a temperate steppe.BIOGEOCHEMISTRY,133(3),295-305.
MLA	Lu, Xiao-Tao,et al."Temporal variability of foliar nutrients: responses to nitrogen deposition and prescribed fire in a temperate steppe".BIOGEOCHEMISTRY 133.3(2017):295-305.

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