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C:N:P stoichiometry of perennial herbs' organs in the alpine steppe of the northern Tibetan Plateau

文献类型：期刊论文

作者Ma Xing-xing1; Hong Jiang-tao2; Wang Xiao-dan2
刊名JOURNAL OF MOUNTAIN SCIENCE
出版日期2019-09-01
卷号16期号:9页码:2039-2047
关键词Shoot tissues Chemical elements Biogeochemical process Alpine steppe Tibet Plateau
ISSN号1672-6316
DOI10.1007/s11629-018-5299-1
通讯作者Wang Xiao-dan(wxd@imde.ac.cn)
英文摘要The patterns of C:N:P stoichiometry across ecosystems are important in understanding biogeochemical processes. The stoichiometry of nutrients at the leaf and root level have been reported previously, but relationships of other plant organs, such as stems and the reproductive organs, remains unclear. We collected 228 samples of leaves, roots, stems and reproductive organs from 11 common plant species at 25 sites on the Tibetan Plateau to explore the relationships of C:N:P stoichiometry both within and across plant organs. The average C concentrations in the roots, leaves, stems and reproductive organs were 427.32, 410.51, 421.11 and 416.72 mg g(-1), respectively. The shoot tissues (leaves, stems and reproductive organs) had significantly higher N and P concentrations than the roots. The N and P concentrations had a significant positive correlation within the same organ. The nutrient concentrations (N and P) and nutrient ratios (C:N, C:P and N:P) were significantly correlated across all pairwise organ combinations. Our data suggest that alpine perennial herbs share similar evolutionary histories and have constrained patterns of covariation for C concentrations, with differential patterns for N and P stoichiometry across organs. Our data also indicate that covarying sets of nutrient traits are consistent across environments and biogeographical regions and demonstrate convergent evolution in plant nutritional characteristics in extreme alpine environments.
WOS关键词PHOSPHORUS STOICHIOMETRY ; LEAF NITROGEN ; PLANTS ; PATTERNS ; TRAITS ; GROWTH ; GRASSLAND ; BIOMASS
资助项目Strategic Priority Program of the Chinese Academy of Sciences[XDA20020401] ; STS of Chinese Academy of Sciences[KFJ-STS-QYZD-075] ; Applied Basic Research Programs of Shanxi Province[201801D221048]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000485301000005
出版者SCIENCE PRESS
资助机构Strategic Priority Program of the Chinese Academy of Sciences ; STS of Chinese Academy of Sciences ; Applied Basic Research Programs of Shanxi Province
源URL[http://ir.imde.ac.cn/handle/131551/27153]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Wang Xiao-dan
作者单位1.Shanxi Normal Univ, Coll Geog Sci, Linfen 041000, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Ma Xing-xing,Hong Jiang-tao,Wang Xiao-dan. C:N:P stoichiometry of perennial herbs' organs in the alpine steppe of the northern Tibetan Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(9):2039-2047.
APA Ma Xing-xing,Hong Jiang-tao,&Wang Xiao-dan.(2019).C:N:P stoichiometry of perennial herbs' organs in the alpine steppe of the northern Tibetan Plateau.JOURNAL OF MOUNTAIN SCIENCE,16(9),2039-2047.
MLA Ma Xing-xing,et al."C:N:P stoichiometry of perennial herbs' organs in the alpine steppe of the northern Tibetan Plateau".JOURNAL OF MOUNTAIN SCIENCE 16.9(2019):2039-2047.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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