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Testing the scaling effects and mechanisms of N-induced biodiversity loss: evidence from a decade-long grassland experiment
Lan, Zhichun1; Jenerette, G. Darrel; Zhan, Shuxia1; Li, Wenhuai1; Zheng, Shuxia; Bai, Yongfei
2015
发表期刊JOURNAL OF ECOLOGY
ISSN0022-0477
卷号103期号:3页码:750-760
摘要Although extensive studies demonstrate that nitrogen (N) enrichment frequently reduces plant diversity within small quadrats (0.5-4m(2)), only a few studies have evaluated N effects on biodiversity across different spatial scales. We conducted the first experimental test of the scale dependence of N effects on species richness from a 10-year N treatment (1.75-28gNm(-2)year(-1)) in a typical steppe. We used species-area relationship (SAR) to analyse the scale dependence of species loss with power model S=cA(z) (S is species number, A is area, c is intercept, and z is slope). Absolute species loss decreased at sampling area > 8m(2). Proportional species loss (compared to control) decreased and critical threshold (N-crit) for biodiversity losses increased with sampling areas. These scale dependences were quantified as increasing slope (z-value) of SAR with N addition. Through SAR decomposition, we found that this overall positive effect was in response to positive effects of changes to the species abundance distribution over negative effects of overall species richness losses.Synthesis. As nitrogen (N) enrichment typically occurs at scales much larger than individual plots, understanding how N enrichment affects the scaling patterns of biodiversity is necessary for biodiversity conservation and ecosystem management in response to anthropogenic N deposition.
关键词critical threshold determinants of plant community diversity and structure N enrichment number of individuals SAR decomposition scaling effect species abundance distribution species aggregation species-area relationship (SAR)
学科领域Plant Sciences ; Ecology
DOI10.1111/1365-2745.12395
收录类别SCI
语种英语
WOS关键词SPECIES RICHNESS ; NITROGEN DEPOSITION ; DEPENDENT RESPONSES ; PLANT BIODIVERSITY ; DIVERSITY ; PRODUCTIVITY ; THRESHOLDS ; LIMITATION ; ENRICHMENT ; ABUNDANCE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000353640500022
出版者WILEY
文献子类Article
出版地HOBOKEN
EISSN1365-2745
资助机构National Natural Science Foundation of China [31030013, 31320103916] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050400]
作者邮箱yfbai@ibcas.ac.cn
作品OA属性Bronze
引用统计
被引频次:20[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/2S10CLM1/25884
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, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92521 USA
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Lan, Zhichun,Jenerette, G. Darrel,Zhan, Shuxia,et al. Testing the scaling effects and mechanisms of N-induced biodiversity loss: evidence from a decade-long grassland experiment[J]. JOURNAL OF ECOLOGY,2015,103(3):750-760.
APA Lan, Zhichun,Jenerette, G. Darrel,Zhan, Shuxia,Li, Wenhuai,Zheng, Shuxia,&Bai, Yongfei.(2015).Testing the scaling effects and mechanisms of N-induced biodiversity loss: evidence from a decade-long grassland experiment.JOURNAL OF ECOLOGY,103(3),750-760.
MLA Lan, Zhichun,et al."Testing the scaling effects and mechanisms of N-induced biodiversity loss: evidence from a decade-long grassland experiment".JOURNAL OF ECOLOGY 103.3(2015):750-760.
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