Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical

Tesis (Doctorado) - Université de Montpellier, Montpellier (Francia), 2008

Bibliographic Details
Main Author:	Hergoualc'h, Kristell
Other Authors:	Ganry, F.
Format:	Tesis
Language:	Francés
Published:	Université de Montpellier, Montpellier (Francia) 2019
Subjects:	CAMBIO CLIMATICO CAFECOFFEA ARABICA PLANTACIÓN GASES DE EFECTO INVERNADERO CONTAMINANTES ANDOSOLES ZONA TROPICAL
Online Access:	https://repositorio.catie.ac.cr/handle/11554/9225

id	RepoCATIE9225
record_format	dspace
spelling	RepoCATIE92252023-08-15T16:28:58Z Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical Soil greenhouse gases emmssions and carbon storage in coffee plantations on Andosols in tropical climate Hergoualc'h, Kristell Ganry, F. Université de Montpellier, Montpellier (Francia) (UM) CATIE - Centro Agronómico Tropical de Investigación y Enseñanza CAMBIO CLIMATICO CAFECOFFEA ARABICA PLANTACIÓN GASES DE EFECTO INVERNADERO CONTAMINANTES ANDOSOLES ZONA TROPICAL Tesis (Doctorado) - Université de Montpellier, Montpellier (Francia), 2008 Coffee plantations represent 7.5% of the world’s permanent crops and generally use large amounts of N fertilizer (up to 350 kg N ha-1 y-1). Coffee is often grown under the shade of N fixing trees. The contribution of N fixing plants to N2O emissions is a growing concern in the sustainable development framework. To date results in the literature are contradictory. We, therefore, studied the greenhouse gas (GHG) balance in two highly fertilized (250 kg N ha-1 y-1) coffee plantations, in Costa Rica: a monoculture and a plantation shaded by the N2 fixing legume species Inga densiflora. We periodically measured soil fluxes of N2O, CH4 and CO2, their edaphic determinants (gravimetric moisture, water filled pore space, temperature and mineral nitrogen content) and soil N mineralization rates. In addition, we characterized, in the laboratory, the biological parameters of nitrification denitrification and their related N2O and N2 production in order to simulate continuous N2O emissions using the models NGAS and NOE for a one year period. We also assessed soil C dynamic and C accumulation in biomass and litter. Our measurements showed a very large contribution of fertilizer induced N2O emissions, on average 77%, to the annual budgets (4.3 ¦ 0.3 and 5.8 ¦ 0.5 kg N2O-N ha-1 y-1, in the monoculture and the shaded plantation, respectively). The fertilizations also temporarily increased soil respiration rates. The low values of the biological activities (notably denitrification potentials < 1 kg N ha-1 d-1) explained that the observed N2O fluxes were always smaller than 300 g N ha-1 d-1 in environmental conditions yet favourable to N2O production (high soil temperature, moisture and nitrate content). The similarity of the biological activities measured in both coffee plantations and also the similar annual N2O budgets derived through measurements and modelling suggests only a small magnitude effect of the N2 fixing legume tree species on N2O emissions. The sum of soil non CO2 GHG fluxes and C storage in the shaded culture (11.93 ¦ 2.17 Mg CO2-equivalent ha-1 y-1) was 4 times larger than the total GHG balance in the monoculture (2.67 ¦ 1.94 Mg CO2-equivalent ha-1 y-1). Our results therefore confirm that coffee grown in an agroforestry system, on an Andosol, increases the GHG sink and that, for the current context, the use of an N2 fixing legume species as shade tree does not contradict this observation. 2019-11-19T14:34:08Z 2019-11-19T14:34:08Z 2008 Tesis de doctorado https://repositorio.catie.ac.cr/handle/11554/9225 fr info:eu-repo/semantics/openAccess info:eu-repo/semantics/openAccess application/pdf Université de Montpellier, Montpellier (Francia)
institution	Centro Agronómico Tropical de Investigación y Enseñanza
collection	Repositorio CATIE
language	Francés
topic	CAMBIO CLIMATICO CAFECOFFEA ARABICA PLANTACIÓN GASES DE EFECTO INVERNADERO CONTAMINANTES ANDOSOLES ZONA TROPICAL
spellingShingle	CAMBIO CLIMATICO CAFECOFFEA ARABICA PLANTACIÓN GASES DE EFECTO INVERNADERO CONTAMINANTES ANDOSOLES ZONA TROPICAL Hergoualc'h, Kristell Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
description	Tesis (Doctorado) - Université de Montpellier, Montpellier (Francia), 2008
author2	Ganry, F.
author_facet	Ganry, F. Hergoualc'h, Kristell
format	Tesis
author	Hergoualc'h, Kristell
author_sort	Hergoualc'h, Kristell
title	Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
title_short	Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
title_full	Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
title_fullStr	Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
title_full_unstemmed	Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
title_sort	emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des andosols en climat tropical
publisher	Université de Montpellier, Montpellier (Francia)
publishDate	2019
url	https://repositorio.catie.ac.cr/handle/11554/9225
work_keys_str_mv	AT hergoualchkristell emissionsdegazaeffetdeserreparlesoletstockagedecarboneencafeicultureconduitesurdesandosolsenclimattropical AT hergoualchkristell soilgreenhousegasesemmssionsandcarbonstorageincoffeeplantationsonandosolsintropicalclimate
_version_	1808117362096865280

Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical

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