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, Yunhai2 ; Wang, Jing 3; Stevens, Carly J.; Lu, Xiaotao 4; He, Nianpeng 5; Wang, Changhui ; Han, Xingguo
	2018
发表期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
卷号	11 期号:5 页码:685-695
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.
关键词	biodiversity dominance effect nitrogen addition frequency nitrogen deposition productivity
学科领域	Plant Sciences ; Ecology ; Forestry
DOI	10.1093/jpe/rtx041
收录类别	SCI
语种	英语
WOS关键词	NITROGEN DEPOSITION ; ECOSYSTEM STABILITY ; NUTRIENT ENRICHMENT ; GLOBAL ASSESSMENT ; BIODIVERSITY LOSS ; SPECIES RICHNESS ; PRODUCTIVITY ; DIVERSITY ; SOIL ; TRANSFORMATION
WOS记录号	WOS:000456052800002
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1752-993X
资助机构	National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [31570469] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2015T80153] ; National Key R&D program of China [2016YFC0500202, 2016YFC0500700] ; NSFCNational Natural Science Foundation of China (NSFC) [31430016, 41573063]
作者邮箱	lvxiaotao@iae.ac.cn ; xghan@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：13[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/2S10CLM1/20472
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 Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 2.Zhang, Yunhai; Stevens, Carly J.] 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.

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