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Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland
Zhang, Yunhai1,2,3; Wang, Jing1,4; Stevens, Carly J.2; Lu, Xiaotao5; He, Nianpeng6; Wang, Changhui1; Han, Xingguo1
2018-10-01
Source PublicationJOURNAL OF PLANT ECOLOGY
ISSN1752-9921
Volume11Issue:5Pages:685-695
Corresponding AuthorLu, Xiaotao(lvxiaotao@iae.ac.cn) ; Han, Xingguo(xghan@ibcas.ac.cn)
AbstractAims 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.
Keywordbiodiversity dominance effect nitrogen addition frequency nitrogen deposition productivity
DOI10.1093/jpe/rtx041
WOS KeywordNITROGEN DEPOSITION ; ECOSYSTEM STABILITY ; NUTRIENT ENRICHMENT ; GLOBAL ASSESSMENT ; BIODIVERSITY LOSS ; SPECIES RICHNESS ; PRODUCTIVITY ; DIVERSITY ; SOIL ; TRANSFORMATION
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; National Key R&D program of China ; NSFC
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology
WOS SubjectPlant Sciences ; Ecology
WOS IDWOS:000456052800002
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/50636
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLu, Xiaotao; Han, Xingguo
Affiliation1.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
Recommended Citation
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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