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<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Does spatial distribution of tree size account for spatial variation in soil respiration in a tropical forest?</title>
<creator>Bréchet, Laëtitia</creator>
<creator>Ponton, Stéphane</creator>
<creator>Alméras, Tancrède</creator>
<creator>Bonal, Damien</creator>
<creator>Epron, Daniel</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Ecologie et Ecophysiologie Forestières (EEF) ; Institut National de la Recherche Agronomique (INRA) - Université de Lorraine (UL)</contributor>
<contributor>Mécanique de l'Arbre et du Bois (MAB) ; Laboratoire de Mécanique et Génie Civil (LMGC) ; Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>French "Ministere de l'Education Nationale et de la Recherche" ; ORE "Ecosystemes Forestiers"</contributor>
<description>International audience</description>
<source>ISSN: 0032-079X</source>
<source>EISSN: 1573-5036</source>
<source>Plant and Soil</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-00797064</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00797064</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00797064</source>
<source>Plant and Soil, Springer Verlag, 2011, 347 (1), pp.293-303</source>
<language>en</language>
<subject lang=en>Forest structure</subject>
<subject lang=en>Soil respiration</subject>
<subject lang=en>Root mass</subject>
<subject lang=en>Litterfall</subject>
<subject lang=en>Spatial variation</subject>
<subject lang=en>Tropical forest</subject>
<subject>[SPI.OTHER] Engineering Sciences [physics]/Other</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We explored the relationship between soil processes, estimated through soil respiration (Rsoil), and the spatial variation in forest structure, assessed through the distribution of tree size, in order to understand the determinism of spatial variations in Rsoil in a tropical forest. The influence of tree size was examined using an index (Ic) calculated for each tree as a function of (1) the trunk cross section area and (2) the distance from the measurement point. We investigated the relationships between Ic and litterfall,root mass and Rsoil, respectively. Strong significant relationships were found between Ic and both litterfall and root mass. Rsoil showed a large range of variations over the 1-ha experimental plot, from 1.5 to 12.6 gC m−2 d−1. The best relationship between Ic and Rsoil only explained 17% of the spatial variation in Rsoil. These results support the assumption that local spatial patterns in litter production and root mass depend on tree distribution in tropical forests. Our study also emphasizes the modest contribution of tree size distribution-which is mainly influenced by the presence of the biggest trees (among the large range size of the inventoried trees greater than 10 cm diameter at 1.30 m above ground level or at 0.5 m above the buttresses)-in explaining spatial variations in Rsoil.</description>
<date>2011</date>
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