Three Tibetan grassland plant species tend to partition niches with limited plasticity in nitrogen use
文献类型：期刊论文
| 作者 | Zhang, Li2; Pang, Rui1; Xu, Xingliang2,3,5; Song, Minghua2; Li, Yikang5; Zhou, Huakun5; Cui, Xiaoyong3,4; Wang, Yanfen3,4; Ouyang, Hua2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 441期号:1-2页码:601-611 |
| 关键词 | Niche complementarity Kobresia humilis Stipa aliena Saussurea superba N-15 Resource competition |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-019-04148-0 |
| 通讯作者 | Xu, Xingliang(xuxingl@hotmail.com) |
| 英文摘要 | Aims 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. |
| WOS关键词 | SHOOT COMPETITION ; ORGANIC NITROGEN ; INORGANIC NITROGEN ; ALPINE MEADOW ; BIODIVERSITY ; ECOSYSTEM ; COMMUNITIES ; LIMITATION ; DIVERSITY ; ROOT |
| 资助项目 | National 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] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000482412400039 |
| 出版者 | SPRINGER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Qinghai innovation platform construction project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/69627]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Xingliang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Area Qinghai Prov Xini, Xining 810008, Qinghai, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：地理科学与资源研究所
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