Neutral responses of plant community Ca concentration to nitrogen enrichment in a semiarid grassland

doi:10.1093/jpe/rtab092

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	Neutral responses of plant community Ca concentration to nitrogen enrichment in a semiarid grassland
	Hou, Shuang-Li ; Lu, Xiao-Tao ; Yang, Jun-Jie
刊名	JOURNAL OF PLANT ECOLOGY
	2022
卷号	15 期号:2 页码:286-293
关键词	calcium stock community composition ecological processes global changes nitrogen deposition temperate steppe
ISSN号	1752-9921
DOI	10.1093/jpe/rtab092
文献子类	Article
英文摘要	Calcium (Ca) is an essential nutrient for plant growth and Ca concentrations in forage have important implications for ruminant diet and health. It remains an open question whether forage Ca concentration would be decreased by increasing nitrogen (N) deposition. We manipulated the increasing rates of N addition (2008-2015) in a semiarid grassland, northern China. Plant Ca concentrations for all species were examined in each plot under N treatment. The Ca concentrations at functional group and community levels were calculated based on the concentration of each species presented and their relative biomass in each plot. We found that community-level Ca concentration remained stable across a gradient of wide-ranged N addition rates, although Ca concentration at both species and functional group levels showed negative responses to N enrichment. Given that forbs had higher Ca concentration than grasses, the increasing relative biomass of forbs canceled out the negative responses of species-level and functional group-level Ca concentration. Our results further showed that community Ca pool showed a positive but saturating response to N addition, with a threshold at the rate of 10 g N m(-2) yr(-1). Our findings highlight the role of changes in plant relative biomass in controlling the responses of forage Ca concentration and stock to N enrichment.
学科主题	Plant Sciences ; Ecology ; Forestry
电子版国际标准刊号	1752-993X
出版地	OXFORD
WOS关键词	PHOSPHORUS LIMITATION ; N ADDITION ; CALCIUM ; SOIL ; DEPOSITION ; METAANALYSIS ; MECHANISMS ; FREQUENCY ; DIGESTION ; FORBS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000791515900002
资助机构	National Natural Science Foundation of China [31770503, 31822006, 31901141] ; K.C. Wong Education Foundation [GJTD2019-10] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23070103] ; Youth Innovation Promotion Association of Chinese Academy of Sciences [2018032] ; Liaoning Revitalizing Talents Program [XLYC1807061]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28577]
专题	植被与环境变化国家重点实验室
作者单位	1.Lu, Xiao-Tao 2.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.[Hou, Shuang-Li
推荐引用方式 GB/T 7714	Hou, Shuang-Li,Lu, Xiao-Tao,Yang, Jun-Jie. Neutral responses of plant community Ca concentration to nitrogen enrichment in a semiarid grassland[J]. JOURNAL OF PLANT ECOLOGY,2022,15(2):286-293.
APA	Hou, Shuang-Li,Lu, Xiao-Tao,&Yang, Jun-Jie.(2022).Neutral responses of plant community Ca concentration to nitrogen enrichment in a semiarid grassland.JOURNAL OF PLANT ECOLOGY,15(2),286-293.
MLA	Hou, Shuang-Li,et al."Neutral responses of plant community Ca concentration to nitrogen enrichment in a semiarid grassland".JOURNAL OF PLANT ECOLOGY 15.2(2022):286-293.