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<publisher>HAL CCSD</publisher>
<title lang=en>The Response of Tropical Rainforest Dead Wood Respiration to Seasonal Drought</title>
<creator>Rowland, L.</creator>
<creator>Stahl, Clement</creator>
<creator>Bonal, Damien</creator>
<creator>SIEBICKE, Lukas</creator>
<creator>Williams, M.</creator>
<creator>Meir, P.</creator>
<contributor>Sch Geosci ; University of Edinburgh</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>
<contributor>Ecologie et Ecophysiologie Forestières (EEF) ; Institut National de la Recherche Agronomique (INRA) - Université de Lorraine (UL)</contributor>
<contributor>Div Plant Sci, Res Sch Biol ; Australian Natl Univ</contributor>
<contributor>Natural Environment Research Council (UK); NERC [NE/F002149/1, NE/J011002/1]; National Resources International postgraduate fellowship (UK); ARC [FT110100457]</contributor>
<source>ISSN: 1432-9840</source>
<source>EISSN: 1435-0629</source>
<source>Ecosystems</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01032431</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032431</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01032431</source>
<source>Ecosystems, Springer Verlag, 2013, 16 (7), pp.1294 - 1309. 〈10.1007/s10021-013-9684-x〉</source>
<identifier>DOI : 10.1007/s10021-013-9684-x</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s10021-013-9684-x</relation>
<language>en</language>
<subject lang=en>coarse woody debris</subject>
<subject lang=en>respiration</subject>
<subject lang=en>seasonal drought</subject>
<subject lang=en>soil water content</subject>
<subject lang=en>Amazon rainforest</subject>
<subject lang=en>woody moisture content</subject>
<subject lang=en>NET ECOSYSTEM EXCHANGE</subject>
<subject lang=en>DECOMPOSITION RATES</subject>
<subject lang=en>CENTRAL AMAZON</subject>
<subject lang=en>VEGETATION DYNAMICS</subject>
<subject lang=en>CLIMATE-CHANGE</subject>
<subject lang=en>FRENCH-GUIANA</subject>
<subject lang=en>DECAY-RATES</subject>
<subject lang=en>CO2 EFFLUX</subject>
<subject lang=en>CARBON</subject>
<subject lang=en>DEBRIS</subject>
<subject>[SDV.SA] Life Sciences [q-bio]/Agricultural sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Coarse woody debris (CWD, dead wood sections a parts per thousand yen10 cm diameter) represents a large store of carbon in tropical forests; however, estimates of the flux of carbon from CWD in these forests remain poorly constrained. The objective of this study was to resolve the dry/wet season response of respiration in CWD (R (cwd)), and investigate the importance of biotic and abiotic factors for predicting the seasonal change of R (cwd) at the ecosystem level. This study presents a 4-month time series of R (cwd) measurements conducted on 42 dead trees (26 species) at the Paracou Research Station in French Guiana. R (cwd) measurements were repeated 13 times on each CWD sample from July to November 2011, spanning the transition from wet to dry season, and then from dry season to the following wet season. Seasonal drought caused monthly R (cwd) to drop by 20.5 +/- A 5.1% over the wet-dry transition. Changes in woody tissue moisture content explained 41.9% of the measured seasonal variability in R (cwd), but 60% of the seasonal variability in mean forest R (cwd) rates could be modelled using surface soil water content. We estimate that R (cwd) is approximately 5% of annual ecosystem respiration (R (eco)) and that seasonal variations in R (cwd) contribute appreciably to seasonal variations of R (eco), and should be included in functional models simulating the response of tropical rainforest ecosystems to current and future climate.</description>
<date>2013</date>
</dc>
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