Effects of the frequency and the rate of N enrichment on community structure in a temperate grassland
文献类型：期刊论文
| 作者 | Zhang, Yunhai3,4,5; Wang, Jing1,3; Stevens, Carly J.4; Lu, Xiaotao6; He, Nianpeng2; Wang, Changhui3; Han, Xingguo3 |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 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 |
| 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研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000456052800002 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://210.72.129.5/handle/321005/123895]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Lu, Xiaotao; Han, Xingguo |
| 作者单位 | 1.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Synth Res Ctr Chinese Ecosyst Res Network, 11A,Datun Rd, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 4.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England 5.Aarhus Univ, Dept Agroecol, Blichers Alle 20, DK-8830 Tjele, Denmark 6.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 |
| 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. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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