Search Results - "Roggy, J C"

Soil N2O emissions in French Guiana after the conversion of tropical forest to agriculture with the chop-and-mulch method by Petitjean, C., Hénault, C., Perrin, A.-S., Pontet, C., Metay, A., Bernoux, M., Jehanno, T., Viard, A., Roggy, J.-C.

“…•A fire-free method was used to convert 2ha of French Guianese forest to agriculture.•We measured in situ soil N2O fluxes and compared 4 land uses.•Soil N2O…”
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Estimating N transfers between N2-fixing actinorhizal species and the non-N2-fixing Prunus avium under partially controlled conditions by ROGGY, J. C, MOIROUD, A, LENSI, R, DOMENACH, A. M

“…Two methods of N transfer between plants--by litter decomposition and root-to-root exchange--were examined in mixed plantations of N-fixing and non-fixing…”
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Nitrogen-fixing legumes and silvigenesis in a rain forest in French Guiana: a taxonomic and ecological approach by ROGGY, J. C., PRÉVOST, M. F.

“…The nodulation status and nodule morphology of 62 taxa of Leguminosae in a rain forest in French Guiana are reported according to the taxonomy of the family…”
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Leaf photosynthetic traits of 14 tropical rain forest species in relation to leaf nitrogen concentration and shade tolerance by Coste, S, Roggy, J.C, Imbert, P, Born, C, Bonal, D, Dreyer, E

“…Variability of leaf traits related to photosynthesis was assessed in seedlings from 14 tree species growing in the tropical rain forest of French Guiana. Leaf…”
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Leaf natural 15 N abundance and total N concentration as potential indicators of plant N nutrition in legumes and pioneer species in a rain forest of French Guiana by Roggy, J C, Prévost, M F, Gourbiere, F, Casabianca, H, Garbaye, J, Domenach, A M

“…The suitability of the natural N abundance and of total N concentration of leaves as indicators of the type of plant N nutrition in a rain forest of French…”
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Complementary N Uptake Strategies between Tree Species in Tropical Rainforest by Roggy, J. C., Schimann, H., Sabatier, D., Molino, J. F., Freycon, V., Domenach, Anne-Marie

“…Within tree communities, the differential use of soil N mineral resources, a key factor in ecosystem functioning, may reflect functional complementarity, a…”
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Epicormic Branches: a Growth Indicator for the Tropical Forest Tree, Dicorynia guianensis Amshoff (Caesalpiniaceae) by NICOLINI, ERIC, CARAGLIO, YVES, PÉLISSIER, RAPHAËL, LEROY, CELINE, ROGGY, JEAN‐CHRISTOPHE

“…Architectural analyses of temperate tree species using a chronological approach suggest that the expression of epicormic branches is closely related to low…”
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Nodulation and dinitrogen fixation of legume trees in a tropical freshwater swamp forest in French Guiana by Koponen, Piia, Nygren, Pekka, Domenach, Anne Marie, Le Roux, Christine, Saur, Etienne, Roggy, Jean Christophe

“…Nodulated legume trees comprised 43% of the stand basal area in the low, most frequently flooded microsites, and 23% in higher, drier microsites in a tropical…”
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Estimating N transfers between N 2 -fixing actinorhizal species and the non-N 2 -fixing Prunus avium under partially controlled conditions by Lensi, R., Domenach, A. M., Roggy, J. C., Moiroud, A.

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Leaf natural 15N abundance and total N concentration as potential indicators of plant N nutrition in legumes and pioneer species in a rain forest of French Guiana by Roggy, J.C, Prevost, M.F, Gourbiere, F, Casabianca, H, Garbaye, J, Domenach, A.M

“…The suitability of the natural 15N abundance and of total N concentration of leaves as indicators of the type of plant N nutrition in a rain forest of French…”
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Estimating N transfers between N sub(2)-fixing actinorhizal species and the non-N sub(2)-fixing Prunus avium under partially controlled conditions by Roggy, J C, Moiroud, A, Lensi, R, Domenach, A M

“…Two methods of N transfer between plants--by litter decomposition and root-to-root exchange--were examined in mixed plantations of N-fixing and non-fixing…”
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Erratum: Nitrogen-Fixing Legumes and Silvigenesis in a Rain Forest in French Guiana: A Taxonomic and Ecological Approach

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Leaf natural super(15)N abundance and total N concentration as potential indicators of plant N nutrition in legumes and pioneer species in a rain forest of French Guiana by Roggy, J C, Prevost, M F, Gourbiere, F, Casabianca, H, Garbaye, J, Domenach, A M

“…The suitability of the natural super(15)N abundance and of total N concentration of leaves as indicators of the type of plant N nutrition in a rain forest of…”
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Leaf Natural15N Abundance and Total N Concentration as Potential Indicators of Plant N Nutrition in Legumes and Pioneer Species in a Rain Forest of French Guiana by Roggy, J. C., Prévost, M. F., F. Gourbiere, H. Casabianca, Garbaye, J., Domenach, A. M.

“…The suitability of the natural15N abundance and of total N concentration of leaves as indicators of the type of plant N nutrition in a rain forest of French…”
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Assessing foliar chlorophyll contents with the SPAD-502 chlorophyll meter: 165 a calibration test with thirteen tree species of tropical rainforest in French Guiana by Coste, S, Baraloto, C, Leroy, C, Marcon, E, Renaud, A, Richardson, AD, Roggy, JC, Schimann, H, Uddling, Johan, Herault, B

“…• Chlorophyll meters such as the SPAD-502 offer a simple, inexpensive and rapid method to estimate foliar chlorophyll content. However, values provided by…”
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Nitrogen cycling in the tropical rain forest of French Guiana: comparison of two sites with contrasting soil types using δ15N by Roggy, J. C., Prévost, M. F., Garbaye, J., Domenach, A. M.

“…The natural 15N abundance method for estimating symbiotic biological N2-fixation was tested on legume trees from two rain forests on contrasting soils (oxisols…”
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Nitrogen cycling in the tropical rain forest of French Guiana: comparison of two sites with contrasting soil types using delta super(15)N by Roggy, J C, Prevost, M F, Garbaye, J, Domenach, A M

“…The natural super(15)N abundance method for estimating symbiotic biological N sub(2)-fixation was tested on legume trees from two rain forests on contrasting…”
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