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<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Environmental control of natural gap size distribution in tropical forests</title>
<creator>Goulamoussène, Youven</creator>
<creator>Bedeau, Caroline</creator>
<creator>Descroix, Laurent</creator>
<creator>Linguet, Laurent</creator>
<creator>Hérault, Bruno</creator>
<contributor>UMR 228 Espace-Dev, Espace pour le développement ; Institut de Recherche pour le Développement (IRD) - Université de Perpignan Via Domitia (UPVD) - Université Nice Sophia Antipolis (UNS) ; Université Côte d'Azur (UCA) - Université Côte d'Azur (UCA) - Université d'Avignon et des Pays de Vaucluse (UAPV) - Université de la Réunion (UR) - Université de Montpellier (UM) - Université de Guyane (UG) - Université des Antilles (Pôle Martinique) ; Université des Antilles (UA) - Université des Antilles (UA) - Université des Antilles (Pôle Guadeloupe) ; Université des Antilles (UA)</contributor>
<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 - Université de Guyane (UG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>ONF - Direction régionale de la Guyane ; ONF - Office National des Forêts</contributor>
<contributor>Patrimoines Locaux et Gouvernance (PALOC) ; Muséum National d'Histoire Naturelle (MNHN) - Institut de Recherche pour le Développement (IRD)</contributor>
<contributor>Université de Guyane (UG)</contributor>
<description>International audience</description>
<source>ISSN: 1726-4170</source>
<source>EISSN: 1726-4189</source>
<source>Biogeosciences</source>
<publisher>European Geosciences Union</publisher>
<identifier>hal-01590729</identifier>
<identifier>https://hal-univ-guyane.archives-ouvertes.fr/hal-01590729</identifier>
<identifier>https://hal-univ-guyane.archives-ouvertes.fr/hal-01590729/document</identifier>
<identifier>https://hal-univ-guyane.archives-ouvertes.fr/hal-01590729/file/bg-14-353-2017.pdf</identifier>
<source>https://hal-univ-guyane.archives-ouvertes.fr/hal-01590729</source>
<source>Biogeosciences, European Geosciences Union, 2017, 14 (2), pp.353-364. 〈https://www.biogeosciences.net/14/353/2017/〉. 〈10.5194/bg-14-353-2017〉</source>
<identifier>DOI : 10.5194/bg-14-353-2017</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-14-353-2017</relation>
<source>https://www.biogeosciences.net/14/353/2017/</source>
<language>en</language>
<subject>[SDE.IE] Environmental Sciences/Environmental Engineering</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Natural disturbances are the dominant form of forest regeneration and dynamics in unmanaged tropical forests. Monitoring the size distribution of treefall gaps is important to better understand and predict the carbon budget in response to land use and other global changes. In this study, we model the size frequency distribution of natural canopy gaps with a discrete power law distribution. We use a Bayesian framework to introduce and test, using Monte Carlo Markov chain and Kuo–Mallick algorithms, the effect of local physical environment on gap size distribution. We apply our methodological framework to an original light detecting and ranging dataset in which natural forest gaps were delineated over 30 000 ha of unmanaged forest. We highlight strong links between gap size distribution and environment, primarily hydrological conditions and topography, with large gaps being more frequent on floodplains and in wind-exposed areas. In the future, we plan to apply our methodological framework on a larger scale using satellite data. Additionally , although gap size distribution variation is clearly under environmental control, variation in gap size distribution in time should be tested against climate variability.</description>
<date>2017</date>
</dc>
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