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<title lang=en>The impact of climate changes during the Holocene on vegetation in northern French Guiana</title>
<creator>Freycon, Vincent</creator>
<creator>Krenker, Marion</creator>
<creator>Schwartz, Dominique</creator>
<creator>Nasi, Robert</creator>
<creator>Bonal, Damien</creator>
<contributor>UR Dynamique forestière ; UR Dynamique forestière</contributor>
<contributor>Laboratoire Image, Ville, Environnement [Strasbourg] (LIVE) ; Université de Strasbourg (UNISTRA)</contributor>
<contributor>Center for International Forestry Research (CIFOR) ; CIFOR</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 - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>URL de l'article : http://www.sciencedirect.com/science/article/B6WPN-4XY3KDK-2/2/fd8508af63d82e29b4f9829c65194e26</description>
<source>ISSN: 0033-5894</source>
<source>EISSN: 1096-0287</source>
<source>Quaternary Research</source>
<publisher>Elsevier</publisher>
<identifier>halshs-00551758</identifier>
<identifier>https://halshs.archives-ouvertes.fr/halshs-00551758</identifier>
<source>https://halshs.archives-ouvertes.fr/halshs-00551758</source>
<source>Quaternary Research, Elsevier, 2010, 73 (2), pp.220-225. 〈10.1016/j.yqres.2009.11.007〉</source>
<identifier>DOI : 10.1016/j.yqres.2009.11.007</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2009.11.007</relation>
<language>en</language>
<subject lang=fr>holocene</subject>
<subject lang=fr>vegetation change</subject>
<subject lang=fr>French Guiana</subject>
<subject lang=fr>carbon isotope composition</subject>
<subject lang=fr>soil organique matter</subject>
<subject>[SHS.GEO] Humanities and Social Sciences/Geography</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The impact of climatic changes that occurred during the last glacial maximum and the Holocene on vegetation changes in the Amazon Basin and the Guiana Shield are still widely debated. The aim of our study was to investigate whether major changes in vegetation (i.e. transitions between rainforests and C4 savannas) occurred in northern French Guiana during the Holocene. We measured variations in the δ13C of soil organic matter at eight sites now occupied by forest or savannah. The forest sites were selected to cover two regions (forest refugia and peneplains) which are thought to have experienced different intensities of disturbance during the latest Pleistocene and the Holocene. We found that none of the forest sites underwent major disturbances during the Holocene, i.e. they were not replaced by C4 savannahs or C4 forest savannahs for long periods. Our results thus suggest that tropical rainforests in northern French Guiana were resilient to drier climatic conditions during the Holocene. Nevertheless, geographical and vertical variations in the 13C of SOM were compatible with minor changes in vegetation, variations in soil processes or in soil physical properties.</description>
<date>2010</date>
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