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Unravelling community assemblages through multi-element stoichiometry in plant leaves and roots across primary successional stages in a glacier retreat area
Jiang, Yonglei; Song, Mengya; Zhang, Sheng; Cai, Zhiquan; Lei, Yanbao
2018
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume428Issue:43102Pages:291-305
AbstractOur understandings on the patterns and mechanisms of plant community assembly during succession, especially the primary succession in glacier retreat areas, remain limited. The Hailuogou Glacier Chronosequence provides a distinctive place to disentangle the biotic interactions and abiotic filtering effects on community successional trajectories. Through community-weighted approaches, we quantified elements allocation and regulation in leaves and roots, N:P stoichiometry, and the biotic and abiotic controls guiding community dynamics along the 120-year chronosequence. Across seven primary successional stages, plant leaves featured higher concentrations of macro-elements with lower coefficients of variation (CV) with increasing succession; whereas, fine roots contained more micro-elements with higher CV. From the early to late stages, foliar N:P increased linearly from 8.2 to 20.1. These findings highlighted that the limiting factor for plant growth shifted from N to P over one century of deglaciation. Edaphic factors (pH, bulk density, N and P concentrations) acted as deterministic filtering for trait convergence in the early stages, while biotic factors (species richness and plant litter biomass) for competitive exclusion dominated the late stages hosting species with stronger homoeostatic regulation and more conservative nutrient use.
Department其他
KeywordEdaphic And Biotic Drivers Hailuogou Glacier Chronosequence Elements Homoeostatic Regulation Plant Community Assembly
Subject AreaAgriculture ; Plant Sciences
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10978
Collection药用植物栽培技术组
Recommended Citation
GB/T 7714
Jiang, Yonglei,Song, Mengya,Zhang, Sheng,et al. Unravelling community assemblages through multi-element stoichiometry in plant leaves and roots across primary successional stages in a glacier retreat area[J]. PLANT AND SOIL,2018,428(43102):291-305.
APA Jiang, Yonglei,Song, Mengya,Zhang, Sheng,Cai, Zhiquan,&Lei, Yanbao.(2018).Unravelling community assemblages through multi-element stoichiometry in plant leaves and roots across primary successional stages in a glacier retreat area.PLANT AND SOIL,428(43102),291-305.
MLA Jiang, Yonglei,et al."Unravelling community assemblages through multi-element stoichiometry in plant leaves and roots across primary successional stages in a glacier retreat area".PLANT AND SOIL 428.43102(2018):291-305.
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