DelagrangePotvinMessierEtAl2008

Référence

Delagrange, S., Potvin, C., Messier, C. and Coll, L. (2008) Linking multiple-level tree traits with biomass accumulation in native tree species used for reforestation in Panama. Trees - Structure and Function, 22(3):337-349. (Scopus )

Résumé

To improve establishment yield and carbon accumulation during reforestation, analyses of species adaptations to local environments are needed. Here we measured, at the individual scale, links between biomass accumulation and multiple-level tree traits: biomass partitioning, crown morphology and leaf physiology. The study was carried out on one- and three-year-old individuals of five tropical tree species assigned to pioneer (P) or non-pioneer (NP) functional groups. Among the species, Cedrela odorata, Luehea seemannii and Hura crepitans showed the greatest biomass accumulation. On our seasonally dry site, species performance during the first year was dependent on a greater investment in above-ground foraging, while performance after three years was mainly related to water relations. However, large biomass accumulations were not simply associated with an efficient water use but also with contrasting water uses, based on inter-specific relationships. Generally, greater carbon isotope discrimination (Δ<sub>leaf</sub>) was related to greater allocation to roots. Species with high Δ<sub>leaf</sub> generally showed high leaf potential nitrogen use efficiency (PNUE), suggesting that lower water use efficiency (WUE) increases the efficiency of photosynthetically active N. Also, PNUE was negatively correlated to leaf mass per area (LMA), implying that photosynthetically active N is diluted as total leaf mass increases. Finally, no distinction in measured traits, including biomass accumulation, was observed between the two functional groups. © 2007 Springer-Verlag.

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@ARTICLE { DelagrangePotvinMessierEtAl2008,
    AUTHOR = { Delagrange, S. and Potvin, C. and Messier, C. and Coll, L. },
    TITLE = { Linking multiple-level tree traits with biomass accumulation in native tree species used for reforestation in Panama },
    JOURNAL = { Trees - Structure and Function },
    YEAR = { 2008 },
    VOLUME = { 22 },
    PAGES = { 337-349 },
    NUMBER = { 3 },
    ABSTRACT = { To improve establishment yield and carbon accumulation during reforestation, analyses of species adaptations to local environments are needed. Here we measured, at the individual scale, links between biomass accumulation and multiple-level tree traits: biomass partitioning, crown morphology and leaf physiology. The study was carried out on one- and three-year-old individuals of five tropical tree species assigned to pioneer (P) or non-pioneer (NP) functional groups. Among the species, Cedrela odorata, Luehea seemannii and Hura crepitans showed the greatest biomass accumulation. On our seasonally dry site, species performance during the first year was dependent on a greater investment in above-ground foraging, while performance after three years was mainly related to water relations. However, large biomass accumulations were not simply associated with an efficient water use but also with contrasting water uses, based on inter-specific relationships. Generally, greater carbon isotope discrimination (Δ<sub>leaf</sub>) was related to greater allocation to roots. Species with high Δ<sub>leaf</sub> generally showed high leaf potential nitrogen use efficiency (PNUE), suggesting that lower water use efficiency (WUE) increases the efficiency of photosynthetically active N. Also, PNUE was negatively correlated to leaf mass per area (LMA), implying that photosynthetically active N is diluted as total leaf mass increases. Finally, no distinction in measured traits, including biomass accumulation, was observed between the two functional groups. © 2007 Springer-Verlag. },
    COMMENT = { Cited By (since 1996): 1 Export Date: 10 February 2010 Source: Scopus CODEN: TRESE doi: 10.1007/s00468-007-0189-0 },
    ISSN = { 09311890 (ISSN) },
    KEYWORDS = { Biomass partitioning, Crown morphology, Functional groups, Nitrogen use efficiency, Water use efficiency, Biomass, Functional groups, Nitrogen compounds, Biomass partitioning, Carbon accumulation, Crown morphology, Nitrogen use efficiency, Water use efficiency, Reforestation, Biomass, Functional Groups, Nitrogen Compounds, Reforestation, Cedrela, Cedrela odorata, Hura crepitans, Luehea seemannii },
    OWNER = { Luc },
    TIMESTAMP = { 2010.02.10 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-43149105352&partnerID=40&md5=051060d97cd16a7edcaf1bd382ebdde4 },
}

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