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Three Tibetan grassland plant species tend to partition niches with limited plasticity in nitrogen use
Zhang, Li1; Pang, Rui2; Xu, Xingliang1,3,4; Song, Minghua1; Li, Yikang3; Zhou, Huakun3; Cui, Xiaoyong4,5; Wang, Yanfen4,5; Ouyang, Hua1
2019-08-01
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume441Issue:1-2Pages:601-611
Corresponding AuthorXu, Xingliang(xuxingl@hotmail.com)
AbstractAims Niche complementarity theory explains how species coexist by using different resources. Two pathways to partition resource have been demonstrated: classical niche differentiation and plasticity in resource use. We aimed to determine N-uptake patterns in three Tibetan Plateau grassland species, and to examine how N-partitioning is driven by neighbor interactions. Methods We conducted a transplantation experiment using ten plant communities, each comprising a different combination of Kobresia humilis, Stipa aliena, and Saussurea superba. Soil was sprayed uniformly with a mixture of (NH4)(2)SO4, KNO3, and glycine (C2H5NO2) (1:1:1 by mass of N, each containing one form of N-15) after growing for 45 days. Results Across three species, the N-uptake pattern was NO3- > NH4+ > glycine (NO3-: 58.47%; NH4+: 26.91%; glycine: 14.62%). Neighbor presence had species-specific effects on N-15 recovery. Kobresia humilis took up more N-15-NO3- when it was in competition with other species, whereas Stipa aliena and Saussurea superba took up more N-15-NH4+ and N-15-glycine, respectively. Conclusions Plasticity in N resource utilization of the three species was limited. The species competed for N resources proportionally to the availability of these sources, and tended to partition niches. These findings provide important insights into how plant species grow together in alpine grasslands.
KeywordNiche complementarity Kobresia humilis Stipa aliena Saussurea superba N-15 Resource competition
DOI10.1007/s11104-019-04148-0
WOS KeywordSHOOT COMPETITION ; ORGANIC NITROGEN ; INORGANIC NITROGEN ; ALPINE MEADOW ; BIODIVERSITY ; ECOSYSTEM ; COMMUNITIES ; LIMITATION ; DIVERSITY ; ROOT
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC0501802] ; National Key Research and Development Program of China[2017YFA0604802] ; National Natural Science Foundation of China[31470560] ; National Natural Science Foundation of China[41671263] ; Qinghai innovation platform construction project[2017-ZJ-Y20]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Qinghai innovation platform construction project
WOS Research AreaAgriculture ; Plant Sciences
WOS SubjectAgronomy ; Plant Sciences ; Soil Science
WOS IDWOS:000482412400039
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69628
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXu, Xingliang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Area Qinghai Prov Xini, Xining 810008, Qinghai, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
5.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Li,Pang, Rui,Xu, Xingliang,et al. Three Tibetan grassland plant species tend to partition niches with limited plasticity in nitrogen use[J]. PLANT AND SOIL,2019,441(1-2):601-611.
APA Zhang, Li.,Pang, Rui.,Xu, Xingliang.,Song, Minghua.,Li, Yikang.,...&Ouyang, Hua.(2019).Three Tibetan grassland plant species tend to partition niches with limited plasticity in nitrogen use.PLANT AND SOIL,441(1-2),601-611.
MLA Zhang, Li,et al."Three Tibetan grassland plant species tend to partition niches with limited plasticity in nitrogen use".PLANT AND SOIL 441.1-2(2019):601-611.
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