Shifting community composition determines the biodiversity-productivity relationship under increasing precipitation and N deposition

doi:10.1111/jvs.12998

	Shifting community composition determines the biodiversity-productivity relationship under increasing precipitation and N deposition
	Zhang, Ruiyang 1; Schellenberg, Michael P.2; Tian, Dashuan 1; Ma, Fangfang 1,3; Zhang, Tianyou 1,3; Wang, Hu 4; Wu, Qian 5; Bai, Yuting 5; Han, Guodong 5; Niu, Shuli 1,3
刊名	JOURNAL OF VEGETATION SCIENCE
	2021-03-01
卷号	32 期号:2 页码:12
关键词	climate change diversity– productivity relationship grassland ecology increased precipitation N deposition plant functional group species diversity vegetation productivity
ISSN号	1100-9233
DOI	10.1111/jvs.12998
通讯作者	Schellenberg, Michael P.(mpschell2020@gmail.com) ; Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要	Questions The relationships between biodiversity and ecosystem functioning (BEF) vary largely across natural ecosystems, with a unimodal, monotonous linear or no relationship. However, it remains unclear how BEF relationships vary under global change. Given future predicted changes in precipitation and nitrogen (N) deposition, it is crucial to determine how precipitation change and N deposition affect grassland biodiversity and productivity, and regulate their relationships. Location A Dry Mixed-Grass Prairie of western Canada. Methods We established a manipulative field experiment of increased precipitation (water addition with approximately 15% and 30% more monthly precipitation) and N addition (10 g/m(2)) using a randomized complete block design, including six treatments, each replicated five times (30 plots). We conducted vegetation sampling with a 1 m x 1 m quadrat in each plot from 2016 to 2017, to examine the individual and interactive effects of water and N addition on plant diversity, functional group composition, above- and below-ground productivity, and the diversity-productivity relationships. Results We found a positive linear diversity-above-ground biomass (AGB) relationship under increased precipitation, which was attributed to the water-induced increase in the abundance of forbs in the plant community, further promoting the positive effect of plant diversity on AGB. However, N addition caused a negative linear diversity-AGB relationship by increasing AGB and reducing plant diversity. The effects of N on diversity and productivity can be further strengthened under increased precipitation, which was due to the increase of C-3 rhizomatous grasses with high above- and below-ground biomass and the decrease of forbs with high richness. Conclusions Our results suggest that changes in functional group composition determine the plant species' diversity, productivity, and their relationships under increasing precipitation and N deposition, which has significant implications for understanding and modelling ecosystem productivity in the context of global change.
资助项目	National Natural Science Foundation of China[31625006] ; National Natural Science Foundation of China[31988102] ; Postdoctoral Science Foundation of China[2020M670438] ; AAFC Growing Forward 2 ; Beef Science Cluster
WOS关键词	ATMOSPHERIC NITROGEN DEPOSITION ; FINE-ROOT BIOMASS ; PLANT DIVERSITY ; SPECIES RICHNESS ; GRASSLAND PRODUCTIVITY ; BACTERIAL COMMUNITIES ; WATER ; RESPONSES ; VARIABILITY ; COMPETITION
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
语种	英语
出版者	WILEY
WOS记录号	WOS:000645256100001
资助机构	National Natural Science Foundation of China ; Postdoctoral Science Foundation of China ; AAFC Growing Forward 2 ; Beef Science Cluster
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162702]
专题	中国科学院地理科学与资源研究所
通讯作者	Schellenberg, Michael P.; Niu, Shuli
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Agr & Agri Food Canada, Swift Current Res & Dev Ctr, Saskatoon, SK, Canada 3.Univ Chinese Acad Sci, Dept Environm & Resources, Beijing, Peoples R China 4.Univ Saskatchewan, Dept Plant Sci, Saskatoon, SK, Canada 5.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Key Lab Forage Cultivat Proc & High Efficient Uti, Minist Agr China,Minist Educ China,Key Lab Grassl, Hohhot, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ruiyang,Schellenberg, Michael P.,Tian, Dashuan,et al. Shifting community composition determines the biodiversity-productivity relationship under increasing precipitation and N deposition[J]. JOURNAL OF VEGETATION SCIENCE,2021,32(2):12.
APA	Zhang, Ruiyang.,Schellenberg, Michael P..,Tian, Dashuan.,Ma, Fangfang.,Zhang, Tianyou.,...&Niu, Shuli.(2021).Shifting community composition determines the biodiversity-productivity relationship under increasing precipitation and N deposition.JOURNAL OF VEGETATION SCIENCE,32(2),12.
MLA	Zhang, Ruiyang,et al."Shifting community composition determines the biodiversity-productivity relationship under increasing precipitation and N deposition".JOURNAL OF VEGETATION SCIENCE 32.2(2021):12.