Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland

doi:10.1093/jpe/rtx041

	Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland
	Zhang, Yunhai 1,2,3; Wang, Jing 1,4; Stevens, Carly J.2; Lu, Xiaotao 5; He, Nianpeng 6; Wang, Changhui 1; Han, Xingguo 1
刊名	JOURNAL OF PLANT ECOLOGY
	2018-10-01
卷号	11 期号:5 页码:685-695
关键词	biodiversity dominance effect nitrogen addition frequency nitrogen deposition productivity
ISSN号	1752-9921
DOI	10.1093/jpe/rtx041
通讯作者	Lu, Xiaotao(lvxiaotao@iae.ac.cn) ; Han, Xingguo(xghan@ibcas.ac.cn)
英文摘要	Aims Nitrogen (N) enrichment caused by human activities threatens biodiversity and alters plant community composition and structure. It has been found that heavy and infrequent N inputs may overestimate species extinction, but it remains unclear whether plant community structure will equally respond to frequent reactive N enriched conditions. Methods We independently manipulated the rates and the frequencies of N addition in a temperate steppe, northern China, between 2008 and 2013. Important Findings We found that plant community structure changes, measured by 'Euclidean distance' involving species richness, composition and productivity, were significantly positively related to increasing N enrichment rates rather than frequencies. Changes in aboveground net primary productivity (ANPP), plant species richness and shifts in dominant species were observed. Community ANPP increased with N enrichment, whereas species richness reduced. The frequency of N enrichment increased species richness but had no impacts on community ANPP and the relative ANPP of the two dominant species, C-3 perennial bunchgrass Stipa grandis and C-3 perennial rhizome grass Leymus chinensis. The ANPP and relative ANPP of the two dominant species were significantly negatively correlated with each other. Moreover, changes in the relative ANPP of S. grandis was negatively associated with the changes in community structure. After 5 years' treatment, direct influence of the frequency of N enrichment on plant community structure was not observed, but the effects of the rate of N enrichment were apparent. Our results suggested that further study in various ecosystems and with long-term and well-controlled comparisons the frequency vs. the rate of N enrichment may still be needed.
资助项目	National Natural Science Foundation of China (NSFC)[31570469] ; China Postdoctoral Science Foundation[2015T80153] ; National Key R&D program of China[2016YFC0500202] ; National Key R&D program of China[2016YFC0500700] ; NSFC[31430016] ; NSFC[41573063]
WOS关键词	NITROGEN DEPOSITION ; ECOSYSTEM STABILITY ; NUTRIENT ENRICHMENT ; GLOBAL ASSESSMENT ; BIODIVERSITY LOSS ; SPECIES RICHNESS ; PRODUCTIVITY ; DIVERSITY ; SOIL ; TRANSFORMATION
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000456052800002
资助机构	National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; National Key R&D program of China ; NSFC
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/50635]
专题	中国科学院地理科学与资源研究所
通讯作者	Lu, Xiaotao; Han, Xingguo
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 2.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England 3.Aarhus Univ, Dept Agroecol, Blichers Alle 20, DK-8830 Tjele, Denmark 4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Synth Res Ctr Chinese Ecosyst Res Network, 11A,Datun Rd, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yunhai,Wang, Jing,Stevens, Carly J.,et al. Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland[J]. JOURNAL OF PLANT ECOLOGY,2018,11(5):685-695.
APA	Zhang, Yunhai.,Wang, Jing.,Stevens, Carly J..,Lu, Xiaotao.,He, Nianpeng.,...&Han, Xingguo.(2018).Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland.JOURNAL OF PLANT ECOLOGY,11(5),685-695.
MLA	Zhang, Yunhai,et al."Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland".JOURNAL OF PLANT ECOLOGY 11.5(2018):685-695.