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<identifier>oai:HAL:hal-01032414v1</identifier>
<datestamp>2018-01-11</datestamp>
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<title lang=en>Nutrient and Carbon Limitation on Decomposition in an Amazonian Moist Forest</title>
<creator>Barantal, Sandra</creator>
<creator>Schimann, Heidy</creator>
<creator>Fromin, Nathalie</creator>
<creator>Haettenschwiler, Stephan</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>Ctr Ecol Fonct & Evolut ; Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>CNRS "PIR Amazonie II'' grant</contributor>
<source>ISSN: 1432-9840</source>
<source>EISSN: 1435-0629</source>
<source>Ecosystems</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01032414</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032414</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01032414</source>
<source>Ecosystems, Springer Verlag, 2012, 15 (7), pp.1039 - 1052. 〈10.1007/s10021-012-9564-9〉</source>
<identifier>DOI : 10.1007/s10021-012-9564-9</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s10021-012-9564-9</relation>
<language>en</language>
<subject lang=en>litter quality</subject>
<subject lang=en>phosphorus</subject>
<subject lang=en>labile carbon</subject>
<subject lang=en>priming effect</subject>
<subject lang=en>soil fauna</subject>
<subject lang=en>energy limitation</subject>
<subject lang=en>tropical forest</subject>
<subject lang=en>TROPICAL RAIN-FOREST</subject>
<subject lang=en>LEAF-LITTER DECOMPOSITION</subject>
<subject lang=en>TERRESTRIAL ECOSYSTEMS</subject>
<subject lang=en>PHOSPHORUS LIMITATION</subject>
<subject lang=en>MICROBIAL BIOMASS</subject>
<subject lang=en>ORGANIC-MATTER</subject>
<subject lang=en>FRENCH-GUIANA</subject>
<subject lang=en>SOIL</subject>
<subject lang=en>NITROGEN</subject>
<subject lang=en>STOICHIOMETRY</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>Tropical forests determine global biogeochemical cycles to a large extent, but control factors for key ecosystem processes such as decomposition remain poorly understood. With a full-factorial C (cellulose), N (urea), and P (phosphate) fertilization experiment, we tested the relative importance of C and nutrient limitation on litter decomposition in a mature lowland moist forest of French Guiana. Despite the previously demonstrated litter C quality control over decomposition and the very low soil P content (0.1 mg g(-1) of soil) at our study site, fertilization with C or P alone did not increase the decomposition of a wide range of litter types (N:P ratios between 20 and 80). Nitrogen fertilization alone also had no effect on decomposition. However, the combined fertilization with N and P resulted in up to 33.5% more initial litter mass lost, with an increasing effect with wider litter N:P ratios. Soil fauna strongly stimulated litter mass loss and enhanced nutrient fertilization effects. Moreover, nutrient effects on decomposition increased with additional C fertilization in the presence of fauna. Our results suggest that increased N availability is required for a positive P effect on decomposition in the studied P-poor tropical forest. Further stimulation of decomposition by C amendment through priming indicates energy limitation of decomposers that is co-determined by nutrient availability. The demonstrated intricate control of the key resources C, N, and P on decomposition calls for an intensified research effort on multiple resource limitation on key processes in tropical forests and how they change under multiple human impacts.</description>
<date>2012</date>
</dc>
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