SongZhangChangEtAl2012

Référence

Song, X.Z., Zhang, H.L., Chang, S.X., Jiang, H., Peng, C. and Yu, S.Q. (2012) Elevated UV-B radiation increased the decomposition of Cinnamomum camphora and Cyclobalanopsis glauca leaf litter in subtropical China. Journal of Soils and Sediments, 12(3):307-311. (Scopus )

Résumé

Purpose: Ultraviolet-B (UV-B) radiation reaching the earth's surface has been increasing due to ozone depletion and can profoundly influence litter decomposition and nutrient cycling in terrestrial ecosystems. The role of UV-B radiation in litter decomposition in humid environments is poorly understood; we thus investigated the effect of UV-B radiation on litter decomposition and nitrogen (N) release in a humid subtropical ecosystem in China. Materials and methods: We conducted a field-based experiment using the litterbag method to study litter decomposition and N release under ambient and elevated (31% above ambient) UV-B radiation, using the leaf litter of two common tree species, Cinnamomum camphora and Cyclobalanopsis glauca, native to subtropical China. Results and discussion: Elevated UV-B radiation significantly increased the decomposition rate of C. camphora and C. glauca leaf litter by 16. 7% and 27. 8%, respectively, and increased the N release from the decomposing litter of C. glauca but not C. camphora. Conclusions: Elevated UV-B radiation significantly accelerated the decomposition of litter of two native tree species and the N release from the decomposition litter of C. glauca in humid subtropical China, which has implications for soil carbon flux and forest productivity. © 2011 Springer-Verlag.

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@ARTICLE { SongZhangChangEtAl2012,
    AUTHOR = { Song, X.Z. and Zhang, H.L. and Chang, S.X. and Jiang, H. and Peng, C. and Yu, S.Q. },
    TITLE = { Elevated UV-B radiation increased the decomposition of Cinnamomum camphora and Cyclobalanopsis glauca leaf litter in subtropical China },
    JOURNAL = { Journal of Soils and Sediments },
    YEAR = { 2012 },
    VOLUME = { 12 },
    PAGES = { 307-311 },
    NUMBER = { 3 },
    ABSTRACT = { Purpose: Ultraviolet-B (UV-B) radiation reaching the earth's surface has been increasing due to ozone depletion and can profoundly influence litter decomposition and nutrient cycling in terrestrial ecosystems. The role of UV-B radiation in litter decomposition in humid environments is poorly understood; we thus investigated the effect of UV-B radiation on litter decomposition and nitrogen (N) release in a humid subtropical ecosystem in China. Materials and methods: We conducted a field-based experiment using the litterbag method to study litter decomposition and N release under ambient and elevated (31% above ambient) UV-B radiation, using the leaf litter of two common tree species, Cinnamomum camphora and Cyclobalanopsis glauca, native to subtropical China. Results and discussion: Elevated UV-B radiation significantly increased the decomposition rate of C. camphora and C. glauca leaf litter by 16. 7% and 27. 8%, respectively, and increased the N release from the decomposing litter of C. glauca but not C. camphora. Conclusions: Elevated UV-B radiation significantly accelerated the decomposition of litter of two native tree species and the N release from the decomposition litter of C. glauca in humid subtropical China, which has implications for soil carbon flux and forest productivity. © 2011 Springer-Verlag. },
    COMMENT = { Export Date: 16 May 2012 Source: Scopus doi: 10.1007/s11368-011-0451-3 },
    ISSN = { 14390108 (ISSN) },
    KEYWORDS = { Litter decomposition, Nitrogen release, Subtropical humid zone, UV-B radiation, carbon flux, deciduous tree, decomposition, evergreen tree, experimental study, humid environment, leaf litter, net ecosystem production, nitrogen cycle, nutrient cycling, ozone depletion, reaction rate, soil carbon, subtropical region, terrestrial ecosystem, ultraviolet B radiation, China, Cinnamomum camphora, Dryobalanops, Quercus glauca },
    OWNER = { Luc },
    TIMESTAMP = { 2012.05.16 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84857140417&partnerID=40&md5=485d16410a35d4b6479127bb1ce0c066 },
}

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