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Evaluation multi-échelles de la diversité spécifique, structurale et fonctionnelle des arbres en forêt guyanaise : prise en compte du substrat géologique, des types de sols et de la dynamique sylvigénétique (DIME) IRD
Sabatier, Daniel (coord.); Couteron, P.; Elfort, Georges; Madelaine, C.; Molino, Jean-François; Nicolini, E.; Prévost, Marie-Françoise; Pélissier, Raphaël; Proisy, Christophe; Smock, Jean-Louis; Tarcy, Michel; Abner, E.; Baisie, M.; Bonal, D.; Domenach, A.M.; Freycon, V.; Godard, I.; Gond, V.; Goret, J.Y.; Kago, F.; Koese, M.; Kwasie, F.; Le Fol, J.; Lentillus, E.; Ngwete, O.; Roggy, J.C.; Santé, R.; Weigel, J.; Trichon, V.; Lafitte-Olano, A.; Franc, A. (collab.); Guehl, J.M. (collab.); Théveniaut, H. (collab.).
Tipo: Text Palavras-chave: FORET; ARBRE; STRUCTURE DU PEUPLEMENT; DIVERSITE SPECIFIQUE; VARIATION SPATIALE; TELEDETECTION; RELATION SOL PLANTE; ROCHE MERE DU SOL; GEOMORPHOLOGIE; EAU; AZOTE; MONTAGNE.
Ano: 2006 URL: http://www.documentation.ird.fr/hor/fdi:010051746
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Litter composition rather than plant presence affects decomposition of tropical litter mixtures Inra
Coq, S.; Weigel, J.; Butenschoen, O.; Bonal, D.; Hättenschwiller, S..
Litter decomposition is strongly controlled by litter quality, but the composition of litter mixtures and potential interactions with live plants through root activity may also influence decomposers. In a greenhouse experiment in French Guiana we studied the combined effects of the presence of tropical tree seedlings and of distinct litter composition on mass and nitrogen (N) loss from decomposing litter and on microbial biomass. Different litter mixtures decomposed for 435 days in pots filled with sand and containing an individual seedling from one of four different tree species. We found both additive and negative non-additive effects (NAE) of litter mixing on mass loss, whereas N loss showed negative and positive NAE of litter mixing. If litter from...
Tipo: Journal Article Palavras-chave: LITIERE; DECOMPOSITION; BIOMASSE MICROBIENNE; PLANTULE; PLATONIA INSIGNIS; GOUPIA GLABRA; RACINES FINES; ETUDE EN SERRE AMAZONIAN LOWLAND RAINFOREST; BELOWGROUND/ABOVEGROUND INTERACTIONS; LITTER DECOMPOSITION; NON-ADDITIVE EFFECT; NITROGEN DYNAMIC; PLANT-SOIL FEEDBACK; FRENCH GUIANA.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011895023df&uri=/notices/prodinra1/2011/06/
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