Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations
Drought is a major abiotic stress that will be exacerbated by climate changes in many forest ecosystems. A scarcity of fertilizers for the management of tropical plantations is also predicted due to finite reserves of phosphorus and potassium (K) worldwide. Identifying management practices enhancing tree tolerance to drought and nutrient deficiencies is, therefore, of primary interest. Carbon, water, and nutrient fluxes have been monitored intensively over entire rotations in experiments manipulating rainfall and nutrition in Eucalyptus grandis plantations in southern Brazil. These studies question the relevance of some silvicultural practices well established in regions with relatively high annual rainfall. The early tree growth does not always need to be maximized; weeding can also be important after canopy closure; K fertilization is not always beneficial to face drought; it is not always necessary to split the applications of N and K fertilizers to prevent losses by leaching; and sodium application can enhance tree growth in K-deficient soils. We show that studies carried out at a single site can have broad applications for the management of tropical plantations, provided that they improve our comprehension of the mechanisms driving tree growth. In addition to multilocal trials, multidisciplinary research at a few sites associated to modelling and remote sensing is needed to adapt silvicultural practices to global changes.
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Commonwealth Forestry Association
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Subjects: | F61 - Physiologie végétale - Nutrition, Eucalyptus grandis, adaptation physiologique, carence en substance nutritive, déficit d'humidité du sol, stress dû à la sécheresse, efficience d'utilisation de l'eau, nutrition des plantes, plantation forestière, http://aims.fao.org/aos/agrovoc/c_2693, http://aims.fao.org/aos/agrovoc/c_27639, http://aims.fao.org/aos/agrovoc/c_34868, http://aims.fao.org/aos/agrovoc/c_25307, http://aims.fao.org/aos/agrovoc/c_24993, http://aims.fao.org/aos/agrovoc/c_36790, http://aims.fao.org/aos/agrovoc/c_16379, http://aims.fao.org/aos/agrovoc/c_3048, http://aims.fao.org/aos/agrovoc/c_1070, |
Online Access: | http://agritrop.cirad.fr/595998/ http://agritrop.cirad.fr/595998/1/595998.pdf |
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dig-cirad-fr-5959982024-01-29T02:52:26Z http://agritrop.cirad.fr/595998/ http://agritrop.cirad.fr/595998/ Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations. Laclau Jean-Paul, Gonçalves José Leonardo M., Battie Laclau Patricia, Christina Mathias, Nouvellon Yann, Stape Jose Luiz, Moreira R., Le Maire Guerric, Bouillet Jean-Pierre. 2014. International Forestry Review, 16 (5), n.spéc. XXIV IUFRO World Congress abstracts, Résumé : 135-136. IUFRO World Congress. Sustaining Forests, Sustaining People: The Role of Research. 24, Salt Lake City, États-Unis, 5 Octobre 2014/11 Octobre 2014.https://www.ingentaconnect.com/content/cfa/ifr/2014/00000016/00000005 <https://www.ingentaconnect.com/content/cfa/ifr/2014/00000016/00000005> Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations Laclau, Jean-Paul Gonçalves, José Leonardo M. Battie Laclau, Patricia Christina, Mathias Nouvellon, Yann Stape, Jose Luiz Moreira, R. Le Maire, Guerric Bouillet, Jean-Pierre eng 2014 Commonwealth Forestry Association International Forestry Review F61 - Physiologie végétale - Nutrition Eucalyptus grandis adaptation physiologique carence en substance nutritive déficit d'humidité du sol stress dû à la sécheresse efficience d'utilisation de l'eau nutrition des plantes plantation forestière http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_34868 http://aims.fao.org/aos/agrovoc/c_25307 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_36790 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_3048 Brésil http://aims.fao.org/aos/agrovoc/c_1070 Drought is a major abiotic stress that will be exacerbated by climate changes in many forest ecosystems. A scarcity of fertilizers for the management of tropical plantations is also predicted due to finite reserves of phosphorus and potassium (K) worldwide. Identifying management practices enhancing tree tolerance to drought and nutrient deficiencies is, therefore, of primary interest. Carbon, water, and nutrient fluxes have been monitored intensively over entire rotations in experiments manipulating rainfall and nutrition in Eucalyptus grandis plantations in southern Brazil. These studies question the relevance of some silvicultural practices well established in regions with relatively high annual rainfall. The early tree growth does not always need to be maximized; weeding can also be important after canopy closure; K fertilization is not always beneficial to face drought; it is not always necessary to split the applications of N and K fertilizers to prevent losses by leaching; and sodium application can enhance tree growth in K-deficient soils. We show that studies carried out at a single site can have broad applications for the management of tropical plantations, provided that they improve our comprehension of the mechanisms driving tree growth. In addition to multilocal trials, multidisciplinary research at a few sites associated to modelling and remote sensing is needed to adapt silvicultural practices to global changes. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/595998/1/595998.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://www.ingentaconnect.com/content/cfa/ifr/2014/00000016/00000005 info:eu-repo/semantics/altIdentifier/purl/https://www.ingentaconnect.com/content/cfa/ifr/2014/00000016/00000005 |
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F61 - Physiologie végétale - Nutrition Eucalyptus grandis adaptation physiologique carence en substance nutritive déficit d'humidité du sol stress dû à la sécheresse efficience d'utilisation de l'eau nutrition des plantes plantation forestière http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_34868 http://aims.fao.org/aos/agrovoc/c_25307 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_36790 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_1070 F61 - Physiologie végétale - Nutrition Eucalyptus grandis adaptation physiologique carence en substance nutritive déficit d'humidité du sol stress dû à la sécheresse efficience d'utilisation de l'eau nutrition des plantes plantation forestière http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_34868 http://aims.fao.org/aos/agrovoc/c_25307 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_36790 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_1070 |
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F61 - Physiologie végétale - Nutrition Eucalyptus grandis adaptation physiologique carence en substance nutritive déficit d'humidité du sol stress dû à la sécheresse efficience d'utilisation de l'eau nutrition des plantes plantation forestière http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_34868 http://aims.fao.org/aos/agrovoc/c_25307 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_36790 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_1070 F61 - Physiologie végétale - Nutrition Eucalyptus grandis adaptation physiologique carence en substance nutritive déficit d'humidité du sol stress dû à la sécheresse efficience d'utilisation de l'eau nutrition des plantes plantation forestière http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_34868 http://aims.fao.org/aos/agrovoc/c_25307 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_36790 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_1070 Laclau, Jean-Paul Gonçalves, José Leonardo M. Battie Laclau, Patricia Christina, Mathias Nouvellon, Yann Stape, Jose Luiz Moreira, R. Le Maire, Guerric Bouillet, Jean-Pierre Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations |
description |
Drought is a major abiotic stress that will be exacerbated by climate changes in many forest ecosystems. A scarcity of fertilizers for the management of tropical plantations is also predicted due to finite reserves of phosphorus and potassium (K) worldwide. Identifying management practices enhancing tree tolerance to drought and nutrient deficiencies is, therefore, of primary interest. Carbon, water, and nutrient fluxes have been monitored intensively over entire rotations in experiments manipulating rainfall and nutrition in Eucalyptus grandis plantations in southern Brazil. These studies question the relevance of some silvicultural practices well established in regions with relatively high annual rainfall. The early tree growth does not always need to be maximized; weeding can also be important after canopy closure; K fertilization is not always beneficial to face drought; it is not always necessary to split the applications of N and K fertilizers to prevent losses by leaching; and sodium application can enhance tree growth in K-deficient soils. We show that studies carried out at a single site can have broad applications for the management of tropical plantations, provided that they improve our comprehension of the mechanisms driving tree growth. In addition to multilocal trials, multidisciplinary research at a few sites associated to modelling and remote sensing is needed to adapt silvicultural practices to global changes. |
format |
article |
topic_facet |
F61 - Physiologie végétale - Nutrition Eucalyptus grandis adaptation physiologique carence en substance nutritive déficit d'humidité du sol stress dû à la sécheresse efficience d'utilisation de l'eau nutrition des plantes plantation forestière http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_34868 http://aims.fao.org/aos/agrovoc/c_25307 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_36790 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_1070 |
author |
Laclau, Jean-Paul Gonçalves, José Leonardo M. Battie Laclau, Patricia Christina, Mathias Nouvellon, Yann Stape, Jose Luiz Moreira, R. Le Maire, Guerric Bouillet, Jean-Pierre |
author_facet |
Laclau, Jean-Paul Gonçalves, José Leonardo M. Battie Laclau, Patricia Christina, Mathias Nouvellon, Yann Stape, Jose Luiz Moreira, R. Le Maire, Guerric Bouillet, Jean-Pierre |
author_sort |
Laclau, Jean-Paul |
title |
Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations |
title_short |
Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations |
title_full |
Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations |
title_fullStr |
Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations |
title_full_unstemmed |
Adaptation of eucalypt trees to water and nutrient deficiencies: Insights from Brazilian experiments question conventional recommendations |
title_sort |
adaptation of eucalypt trees to water and nutrient deficiencies: insights from brazilian experiments question conventional recommendations |
publisher |
Commonwealth Forestry Association |
url |
http://agritrop.cirad.fr/595998/ http://agritrop.cirad.fr/595998/1/595998.pdf |
work_keys_str_mv |
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_version_ |
1792499977262465024 |