YueYangPengEtAl2016

Référence

Yue, K., Yang, W., Peng, C., Peng, Y., Zhang, C., Huang, C., Tan, Y., Wu, F. (2016) Foliar litter decomposition in an alpine forest meta-ecosystem on the eastern Tibetan Plateau. Science of the Total Environment, 566-567:279-287. (Scopus )

Résumé

Litter decomposition is a biological process fundamental to element cycling and a main nutrient source within forest meta-ecosystems, but few studies have looked into this process simultaneously in individual ecosystems, where environmental factors can vary substantially. A two-year field study conducted in an alpine forest meta-ecosystem with four litter species (i.e., willow: Salix paraplesia, azalea: Rhododendron lapponicum, cypress: Sabina saltuaria, and larch: Larix mastersiana) that varied widely in chemical traits showed that both litter species and ecosystem type (i.e., forest floor, stream and riparian zone) are important factors affecting litter decomposition, and their effects can be moderated by local-scale environmental factors such as temperature and nutrient availability. Litter decomposed fastest in the streams followed by the riparian zone and forest floor regardless of species. For a given litter species, both the k value and limit value varied significantly among ecosystems, indicating that the litter decomposition rate and extent (i.e., reaching a limit value) can be substantially affected by ecosystem type and the local-scale environmental factors. Apart from litter initial acid unhydrolyzable residue (AUR) concentration and its ratio to nitrogen concentration (i.e., AUR/N ratio), the initial nutrient concentrations of phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) were also important litter traits that affected decomposition depending on the ecosystem type. © 2016 Elsevier B.V.

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@ARTICLE { YueYangPengEtAl2016,
    AUTHOR = { Yue, K. and Yang, W. and Peng, C. and Peng, Y. and Zhang, C. and Huang, C. and Tan, Y. and Wu, F. },
    TITLE = { Foliar litter decomposition in an alpine forest meta-ecosystem on the eastern Tibetan Plateau },
    JOURNAL = { Science of the Total Environment },
    YEAR = { 2016 },
    VOLUME = { 566-567 },
    PAGES = { 279-287 },
    NOTE = { cited By 0 },
    ABSTRACT = { Litter decomposition is a biological process fundamental to element cycling and a main nutrient source within forest meta-ecosystems, but few studies have looked into this process simultaneously in individual ecosystems, where environmental factors can vary substantially. A two-year field study conducted in an alpine forest meta-ecosystem with four litter species (i.e., willow: Salix paraplesia, azalea: Rhododendron lapponicum, cypress: Sabina saltuaria, and larch: Larix mastersiana) that varied widely in chemical traits showed that both litter species and ecosystem type (i.e., forest floor, stream and riparian zone) are important factors affecting litter decomposition, and their effects can be moderated by local-scale environmental factors such as temperature and nutrient availability. Litter decomposed fastest in the streams followed by the riparian zone and forest floor regardless of species. For a given litter species, both the k value and limit value varied significantly among ecosystems, indicating that the litter decomposition rate and extent (i.e., reaching a limit value) can be substantially affected by ecosystem type and the local-scale environmental factors. Apart from litter initial acid unhydrolyzable residue (AUR) concentration and its ratio to nitrogen concentration (i.e., AUR/N ratio), the initial nutrient concentrations of phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) were also important litter traits that affected decomposition depending on the ecosystem type. © 2016 Elsevier B.V. },
    AUTHOR_KEYWORDS = { Ecosystem type; K value; Limit value; Litter nutrients; Local-scale environmental factors; Mass-loss rate },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1016/j.scitotenv.2016.05.081 },
    KEYWORDS = { Calcium; Ecology; Floors; Forestry; Nutrients; Rivers, Eastern Tibetan plateau; Environmental factors; K-values; Limit values; Litter decomposition rates; Mass loss rate; Nitrogen concentrations; Nutrient concentrations, Ecosystems, Cupressus; Larix; Larix mastersiana; Rhododendron lapponicum; Salix },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969262531&partnerID=40&md5=79e5d8ecf2177d0a93fa06dd0b65fdf8 },
}

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