YuePengYangEtAl2016

Référence

Yue, K., Peng, C., Yang, W., Peng, Y., Zhang, C., Huang, C. and Wu, F. (2016) Degradation of lignin and cellulose during foliar litter decomposition in an alpine forest river. Ecosphere, 7(10). (Scopus )

Résumé

Lignin and cellulose are thought to be critical factors that affect the rate of litter decomposition; however, few data are available on their degradation dynamics during litter decomposition in lotic ecosystems, such as forest rivers, where litter can decompose much more rapidly than in terrestrial ecosystems. We studied the degradation of lignin and cellulose in the foliar litter of four dominant riparian species (willow: Salix paraplesia; azalea: Rhododendron lapponicum; cypress: Sabina saltuaria; and larch: Larix mastersiana) in an alpine forest river. Over an entire year's incubation, litter lignin and cellulose degraded by 14.7-100% and 57.7-100% of their initial masses, respectively, depending on litter species. Strong degradations of lignin and cellulose occurred in the prefreezing period (i.e., the first 41 d) during litter decomposition, and the degradation rate was the highest among all the decomposition periods regardless of litter species. Litter species, decomposition period, and environmental factors such as temperature and nutrient availability showed significant influences on lignin and cellulose degradation rates. Compared with previously reported data regarding the dynamics of lignin and cellulose during litter decomposition in terrestrial ecosystems, our results suggest that lignin and cellulose can be degraded much more rapidly in lotic ecosystems, indicating that the traditionally used two-phased model for the dynamics of lignin in decomposing litter may not be suitable in lotic ecosystems. Copyright: © 2016 Yue et al.

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@ARTICLE { YuePengYangEtAl2016,
    AUTHOR = { Yue, K. and Peng, C. and Yang, W. and Peng, Y. and Zhang, C. and Huang, C. and Wu, F. },
    TITLE = { Degradation of lignin and cellulose during foliar litter decomposition in an alpine forest river },
    JOURNAL = { Ecosphere },
    YEAR = { 2016 },
    VOLUME = { 7 },
    NUMBER = { 10 },
    NOTE = { cited By 0 },
    ABSTRACT = { Lignin and cellulose are thought to be critical factors that affect the rate of litter decomposition; however, few data are available on their degradation dynamics during litter decomposition in lotic ecosystems, such as forest rivers, where litter can decompose much more rapidly than in terrestrial ecosystems. We studied the degradation of lignin and cellulose in the foliar litter of four dominant riparian species (willow: Salix paraplesia; azalea: Rhododendron lapponicum; cypress: Sabina saltuaria; and larch: Larix mastersiana) in an alpine forest river. Over an entire year's incubation, litter lignin and cellulose degraded by 14.7-100% and 57.7-100% of their initial masses, respectively, depending on litter species. Strong degradations of lignin and cellulose occurred in the prefreezing period (i.e., the first 41 d) during litter decomposition, and the degradation rate was the highest among all the decomposition periods regardless of litter species. Litter species, decomposition period, and environmental factors such as temperature and nutrient availability showed significant influences on lignin and cellulose degradation rates. Compared with previously reported data regarding the dynamics of lignin and cellulose during litter decomposition in terrestrial ecosystems, our results suggest that lignin and cellulose can be degraded much more rapidly in lotic ecosystems, indicating that the traditionally used two-phased model for the dynamics of lignin in decomposing litter may not be suitable in lotic ecosystems. Copyright: © 2016 Yue et al. },
    ART_NUMBER = { e01523 },
    AUTHOR_KEYWORDS = { Concentration; Decomposition period; Degradation rate; Environmental factors; Litter species },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1002/ecs2.1523 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994049973&partnerID=40&md5=0626e71763bf705df3ea8cd740584a0c },
}

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