Biophysical interactions between shade trees and coffee in Central American agroforestry systems
With the financial assistance of the European Union (ICA4-CT-2001-10071), research has been undertaken for the last 3 years on coffee and tree associations in Central America (www.casca-project.com). Its purpose is to promote coffee agroforestry systems in the region and to improve farmer's income through diversification (timber production), production of high quality coffee and payment of incentives for environmental services in order to compensate the current low coffee prices. Intensive measurements have been undertaken to model light and water partitioning between coffee and trees. The impact of shade trees on microclimate, coffee physiology and quality has also been investigated. Especially under sub-optimal conditions, the results show that tree shade creates more favorable microdimatic conditions for coffee and improves coffee photosynthesis. They demonstrate that coffee transpiration is lower under tree shade (Eucalyptus deglupta or Terminalia ivorensis) than in full sun. Nevertheless, they indicate that water competition can take place during the last weeks of the dry season. These results demonstrate that adequate shade (20-40%) decreases coffee productivity by 15-25%. However, this lower productivity can be financially compensated by an increased proportion of larger beans suitable for export and the premium paid for higher cup quality. Indeed, shade lengthens by up to 6 weeks the maturation of coffee berries resulting in better bean filling and beverage quality. These investigations indicate that modelling the effects of agroforestry practices on microclimate, resource partitioning, coffee physiology, productivity and quality is required to provide adequate recommendations for selecting and managing associated trees according to local ecological conditions. (Texte intégral)
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Subjects: | F08 - Systèmes et modes de culture, F60 - Physiologie et biochimie végétale, F40 - Écologie végétale, Coffea, Eucalyptus deglupta, Terminalia ivorensis, ombrage, compétition biologique, photosynthèse, microclimat, transpiration, rendement des cultures, qualité, agroforesterie, http://aims.fao.org/aos/agrovoc/c_1720, http://aims.fao.org/aos/agrovoc/c_2687, http://aims.fao.org/aos/agrovoc/c_26715, http://aims.fao.org/aos/agrovoc/c_7020, http://aims.fao.org/aos/agrovoc/c_917, http://aims.fao.org/aos/agrovoc/c_5812, http://aims.fao.org/aos/agrovoc/c_4802, http://aims.fao.org/aos/agrovoc/c_7871, http://aims.fao.org/aos/agrovoc/c_10176, http://aims.fao.org/aos/agrovoc/c_6400, http://aims.fao.org/aos/agrovoc/c_207, http://aims.fao.org/aos/agrovoc/c_1434, |
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dig-cirad-fr-5233852024-01-28T13:04:03Z http://agritrop.cirad.fr/523385/ http://agritrop.cirad.fr/523385/ Biophysical interactions between shade trees and coffee in Central American agroforestry systems. Vaast Philippe, Dauzat Jean, Franck Nicolas, Van Kanten Rudolf, Siles Pablo, Génard Michel. 2004. In : Book of abstracts, 1st World congress of agroforestry: Working together for sustainable land-use systems, 27 June - 2 July 2004, Orlando (USA). IFAS, University of Florida. Gainesville : IFAS, Résumé, 214. World Congress of Agroforestry. 1, Orlando, États-Unis, 27 Juin 2004/2 Juillet 2004. Biophysical interactions between shade trees and coffee in Central American agroforestry systems Vaast, Philippe Dauzat, Jean Franck, Nicolas Van Kanten, Rudolf Siles, Pablo Génard, Michel eng 2004 IFAS Book of abstracts, 1st World congress of agroforestry: Working together for sustainable land-use systems, 27 June - 2 July 2004, Orlando (USA) F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale F40 - Écologie végétale Coffea Eucalyptus deglupta Terminalia ivorensis ombrage compétition biologique photosynthèse microclimat transpiration rendement des cultures qualité agroforesterie http://aims.fao.org/aos/agrovoc/c_1720 http://aims.fao.org/aos/agrovoc/c_2687 http://aims.fao.org/aos/agrovoc/c_26715 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_917 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4802 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_207 Amérique centrale http://aims.fao.org/aos/agrovoc/c_1434 With the financial assistance of the European Union (ICA4-CT-2001-10071), research has been undertaken for the last 3 years on coffee and tree associations in Central America (www.casca-project.com). Its purpose is to promote coffee agroforestry systems in the region and to improve farmer's income through diversification (timber production), production of high quality coffee and payment of incentives for environmental services in order to compensate the current low coffee prices. Intensive measurements have been undertaken to model light and water partitioning between coffee and trees. The impact of shade trees on microclimate, coffee physiology and quality has also been investigated. Especially under sub-optimal conditions, the results show that tree shade creates more favorable microdimatic conditions for coffee and improves coffee photosynthesis. They demonstrate that coffee transpiration is lower under tree shade (Eucalyptus deglupta or Terminalia ivorensis) than in full sun. Nevertheless, they indicate that water competition can take place during the last weeks of the dry season. These results demonstrate that adequate shade (20-40%) decreases coffee productivity by 15-25%. However, this lower productivity can be financially compensated by an increased proportion of larger beans suitable for export and the premium paid for higher cup quality. Indeed, shade lengthens by up to 6 weeks the maturation of coffee berries resulting in better bean filling and beverage quality. These investigations indicate that modelling the effects of agroforestry practices on microclimate, resource partitioning, coffee physiology, productivity and quality is required to provide adequate recommendations for selecting and managing associated trees according to local ecological conditions. (Texte intégral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/closedAccess http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=183942 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=183944 |
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F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale F40 - Écologie végétale Coffea Eucalyptus deglupta Terminalia ivorensis ombrage compétition biologique photosynthèse microclimat transpiration rendement des cultures qualité agroforesterie http://aims.fao.org/aos/agrovoc/c_1720 http://aims.fao.org/aos/agrovoc/c_2687 http://aims.fao.org/aos/agrovoc/c_26715 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_917 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4802 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_207 http://aims.fao.org/aos/agrovoc/c_1434 F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale F40 - Écologie végétale Coffea Eucalyptus deglupta Terminalia ivorensis ombrage compétition biologique photosynthèse microclimat transpiration rendement des cultures qualité agroforesterie http://aims.fao.org/aos/agrovoc/c_1720 http://aims.fao.org/aos/agrovoc/c_2687 http://aims.fao.org/aos/agrovoc/c_26715 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_917 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4802 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_207 http://aims.fao.org/aos/agrovoc/c_1434 |
spellingShingle |
F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale F40 - Écologie végétale Coffea Eucalyptus deglupta Terminalia ivorensis ombrage compétition biologique photosynthèse microclimat transpiration rendement des cultures qualité agroforesterie http://aims.fao.org/aos/agrovoc/c_1720 http://aims.fao.org/aos/agrovoc/c_2687 http://aims.fao.org/aos/agrovoc/c_26715 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_917 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4802 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_207 http://aims.fao.org/aos/agrovoc/c_1434 F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale F40 - Écologie végétale Coffea Eucalyptus deglupta Terminalia ivorensis ombrage compétition biologique photosynthèse microclimat transpiration rendement des cultures qualité agroforesterie http://aims.fao.org/aos/agrovoc/c_1720 http://aims.fao.org/aos/agrovoc/c_2687 http://aims.fao.org/aos/agrovoc/c_26715 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_917 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4802 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_207 http://aims.fao.org/aos/agrovoc/c_1434 Vaast, Philippe Dauzat, Jean Franck, Nicolas Van Kanten, Rudolf Siles, Pablo Génard, Michel Biophysical interactions between shade trees and coffee in Central American agroforestry systems |
description |
With the financial assistance of the European Union (ICA4-CT-2001-10071), research has been undertaken for the last 3 years on coffee and tree associations in Central America (www.casca-project.com). Its purpose is to promote coffee agroforestry systems in the region and to improve farmer's income through diversification (timber production), production of high quality coffee and payment of incentives for environmental services in order to compensate the current low coffee prices. Intensive measurements have been undertaken to model light and water partitioning between coffee and trees. The impact of shade trees on microclimate, coffee physiology and quality has also been investigated. Especially under sub-optimal conditions, the results show that tree shade creates more favorable microdimatic conditions for coffee and improves coffee photosynthesis. They demonstrate that coffee transpiration is lower under tree shade (Eucalyptus deglupta or Terminalia ivorensis) than in full sun. Nevertheless, they indicate that water competition can take place during the last weeks of the dry season. These results demonstrate that adequate shade (20-40%) decreases coffee productivity by 15-25%. However, this lower productivity can be financially compensated by an increased proportion of larger beans suitable for export and the premium paid for higher cup quality. Indeed, shade lengthens by up to 6 weeks the maturation of coffee berries resulting in better bean filling and beverage quality. These investigations indicate that modelling the effects of agroforestry practices on microclimate, resource partitioning, coffee physiology, productivity and quality is required to provide adequate recommendations for selecting and managing associated trees according to local ecological conditions. (Texte intégral) |
format |
conference_item |
topic_facet |
F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale F40 - Écologie végétale Coffea Eucalyptus deglupta Terminalia ivorensis ombrage compétition biologique photosynthèse microclimat transpiration rendement des cultures qualité agroforesterie http://aims.fao.org/aos/agrovoc/c_1720 http://aims.fao.org/aos/agrovoc/c_2687 http://aims.fao.org/aos/agrovoc/c_26715 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_917 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4802 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_207 http://aims.fao.org/aos/agrovoc/c_1434 |
author |
Vaast, Philippe Dauzat, Jean Franck, Nicolas Van Kanten, Rudolf Siles, Pablo Génard, Michel |
author_facet |
Vaast, Philippe Dauzat, Jean Franck, Nicolas Van Kanten, Rudolf Siles, Pablo Génard, Michel |
author_sort |
Vaast, Philippe |
title |
Biophysical interactions between shade trees and coffee in Central American agroforestry systems |
title_short |
Biophysical interactions between shade trees and coffee in Central American agroforestry systems |
title_full |
Biophysical interactions between shade trees and coffee in Central American agroforestry systems |
title_fullStr |
Biophysical interactions between shade trees and coffee in Central American agroforestry systems |
title_full_unstemmed |
Biophysical interactions between shade trees and coffee in Central American agroforestry systems |
title_sort |
biophysical interactions between shade trees and coffee in central american agroforestry systems |
publisher |
IFAS |
url |
http://agritrop.cirad.fr/523385/ |
work_keys_str_mv |
AT vaastphilippe biophysicalinteractionsbetweenshadetreesandcoffeeincentralamericanagroforestrysystems AT dauzatjean biophysicalinteractionsbetweenshadetreesandcoffeeincentralamericanagroforestrysystems AT francknicolas biophysicalinteractionsbetweenshadetreesandcoffeeincentralamericanagroforestrysystems AT vankantenrudolf biophysicalinteractionsbetweenshadetreesandcoffeeincentralamericanagroforestrysystems AT silespablo biophysicalinteractionsbetweenshadetreesandcoffeeincentralamericanagroforestrysystems AT genardmichel biophysicalinteractionsbetweenshadetreesandcoffeeincentralamericanagroforestrysystems |
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1792496030120411136 |