Productivity depends more on the rate than the frequency of N addition in a temperate grassland

doi:10.1038/srep12558

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	Productivity depends more on the rate than the frequency of N addition in a temperate grassland
	Zhang, Yunhai ; Feng, Jinchao 1; Isbell, Forest 3; Lu, Xiaotao 4; Han, Xingguo 4
刊名	SCIENTIFIC REPORTS
	2015
卷号	5
ISSN号	2045-2322
DOI	10.1038/srep12558
文献子类	Article
英文摘要	Nitrogen (N) is a key limiting resource for aboveground net primary productivity (ANPP) in diverse terrestrial ecosystems. The relative roles of the rate and frequency (additions yr(-1)) of N application in stimulating ANPP at both the community-and species-levels are largely unknown. By independently manipulating the rate and frequency of N input, with nine rates (from 0 to 50 g N m(-2) year(-1)) crossed with two frequencies (twice year(-1) or monthly) in a temperate steppe of northern China across 2008-2013, we found that N addition increased community ANPP, and had positive, negative, or neutral effects for individual species. There were similar ANPP responses at the community-or species-level when a particular annual amount of N was added either twice year(-1) or monthly. The community ANPP was less sensitive to soil ammonium at lower frequency of N addition. ANPP responses to N addition were positively correlated with annual precipitation. Our results suggest that, over a five-year period, there will be similar ANPP responses to a given annual N input that occurs either frequently in small amounts, as from N deposition, or that occur infrequently in larger amounts, as from application of N fertilizers.
学科主题	Multidisciplinary Sciences
出版地	BERLIN
WOS关键词	NET PRIMARY PRODUCTIVITY ; NITROGEN DEPOSITION ; PERENNIAL NEIGHBORS ; USE EFFICIENCY ; ECOSYSTEM ; LIMITATION ; RESPONSES ; WATER ; SOIL ; ESTABLISHMENT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000358579600002
资助机构	National Natural Science Foundation of China [31430016, 31170433, 41273094, 31300384] ; China Postdoctoral Science Foundation [2014M560134, 2015T80153]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25977]
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, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China 2.Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN 55108 USA 3.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, 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	Zhang, Yunhai,Feng, Jinchao,Isbell, Forest,et al. Productivity depends more on the rate than the frequency of N addition in a temperate grassland[J]. SCIENTIFIC REPORTS,2015,5.
APA	Zhang, Yunhai,Feng, Jinchao,Isbell, Forest,Lu, Xiaotao,&Han, Xingguo.(2015).Productivity depends more on the rate than the frequency of N addition in a temperate grassland.SCIENTIFIC REPORTS,5.
MLA	Zhang, Yunhai,et al."Productivity depends more on the rate than the frequency of N addition in a temperate grassland".SCIENTIFIC REPORTS 5(2015).