Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage
Planting nitrogen (N) fixing species can provide substantial levels of N for tree growth, but it can also result in large nutrient losses through deep drainage, threatening soil fertility. Nutrient losses through deep leaching have been little studied in tropical forest plantations and comprehensive studies are needed before planting these species on a large scale. We assessed nutrient fluxes in soil solutions collected in monocultures and mixed plantations of Acacia mangium and Eucalyptus grandis in Sao Paulo state (Brazil) on Ferralsols fertilized with potassium, phosphorus and lime. Soil solution sampling began after replanting the trees in an experiment that had already been conducted for six years in a first rotation. We collected soil solutions beneath the forest floor and at depths of 30, 100 and 300 cm, and determined nutrient concentrations monthly for 3.5 years. Drainage fluxes were calculated at the depth of the lysimeters by modeling the water fluxes with Hydrus 1D. The N concentrations in topsoil solutions were generally higher in Acacia than in Eucalyptus monocultures, confirming that the introduction of Acacia increases soil N availability. However, these differences were no more observed at 100 cm depth and total N leaching at 300 cm depth was low in all the treatments, with an average of 4.8 kg N ha−1 yr−1, probably due to the rapid root system development and high nutrient requirements of these fast-growing trees. Leaching fluxes of K+, Cl−, Ca2+ and Mg2+ peaked in the upper soil layers after fertilizer applications, but the fluxes drastically decreased in deep soil layers. The low fluxes of dissolved nutrients in deep gravitational solutions in our study suggest that the risks of nutrient leaching losses are low in fast-growing plantations established on deep Ferralsols. Our results show that planting N-fixing trees can enhance the N availability for plants without producing large leaching losses, which confirms the interest of mixed plantations with N-fixing trees.
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K01 - Foresterie - Considérations générales F61 - Physiologie végétale - Nutrition Eucalyptus grandis arbre fixateur d'azote fertilisation fertilité du sol Acacia mangium plantation forestière croissance substance nutritive système racinaire forêt tropicale sol tropical lessivage du sol Eucalyptus http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_35228 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5274 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_15591 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1070 http://aims.fao.org/aos/agrovoc/c_6789 K01 - Foresterie - Considérations générales F61 - Physiologie végétale - Nutrition Eucalyptus grandis arbre fixateur d'azote fertilisation fertilité du sol Acacia mangium plantation forestière croissance substance nutritive système racinaire forêt tropicale sol tropical lessivage du sol Eucalyptus http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_35228 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5274 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_15591 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1070 http://aims.fao.org/aos/agrovoc/c_6789 |
spellingShingle |
K01 - Foresterie - Considérations générales F61 - Physiologie végétale - Nutrition Eucalyptus grandis arbre fixateur d'azote fertilisation fertilité du sol Acacia mangium plantation forestière croissance substance nutritive système racinaire forêt tropicale sol tropical lessivage du sol Eucalyptus http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_35228 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5274 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_15591 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1070 http://aims.fao.org/aos/agrovoc/c_6789 K01 - Foresterie - Considérations générales F61 - Physiologie végétale - Nutrition Eucalyptus grandis arbre fixateur d'azote fertilisation fertilité du sol Acacia mangium plantation forestière croissance substance nutritive système racinaire forêt tropicale sol tropical lessivage du sol Eucalyptus http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_35228 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5274 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_15591 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1070 http://aims.fao.org/aos/agrovoc/c_6789 Formaglio, Greta Krusche, Alex Vladimir Mareschal, Louis Bouillet, Jean-Pierre De Moraes Gonçalves, Jose Leonardo Nouvellon, Yann Delgado-Rojas, Juan Sinforiano Montebelo, Alexandra Ranger, Jacques Laclau, Jean-Paul Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage |
description |
Planting nitrogen (N) fixing species can provide substantial levels of N for tree growth, but it can also result in large nutrient losses through deep drainage, threatening soil fertility. Nutrient losses through deep leaching have been little studied in tropical forest plantations and comprehensive studies are needed before planting these species on a large scale. We assessed nutrient fluxes in soil solutions collected in monocultures and mixed plantations of Acacia mangium and Eucalyptus grandis in Sao Paulo state (Brazil) on Ferralsols fertilized with potassium, phosphorus and lime. Soil solution sampling began after replanting the trees in an experiment that had already been conducted for six years in a first rotation. We collected soil solutions beneath the forest floor and at depths of 30, 100 and 300 cm, and determined nutrient concentrations monthly for 3.5 years. Drainage fluxes were calculated at the depth of the lysimeters by modeling the water fluxes with Hydrus 1D. The N concentrations in topsoil solutions were generally higher in Acacia than in Eucalyptus monocultures, confirming that the introduction of Acacia increases soil N availability. However, these differences were no more observed at 100 cm depth and total N leaching at 300 cm depth was low in all the treatments, with an average of 4.8 kg N ha−1 yr−1, probably due to the rapid root system development and high nutrient requirements of these fast-growing trees. Leaching fluxes of K+, Cl−, Ca2+ and Mg2+ peaked in the upper soil layers after fertilizer applications, but the fluxes drastically decreased in deep soil layers. The low fluxes of dissolved nutrients in deep gravitational solutions in our study suggest that the risks of nutrient leaching losses are low in fast-growing plantations established on deep Ferralsols. Our results show that planting N-fixing trees can enhance the N availability for plants without producing large leaching losses, which confirms the interest of mixed plantations with N-fixing trees. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales F61 - Physiologie végétale - Nutrition Eucalyptus grandis arbre fixateur d'azote fertilisation fertilité du sol Acacia mangium plantation forestière croissance substance nutritive système racinaire forêt tropicale sol tropical lessivage du sol Eucalyptus http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_35228 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5274 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_15591 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1070 http://aims.fao.org/aos/agrovoc/c_6789 |
author |
Formaglio, Greta Krusche, Alex Vladimir Mareschal, Louis Bouillet, Jean-Pierre De Moraes Gonçalves, Jose Leonardo Nouvellon, Yann Delgado-Rojas, Juan Sinforiano Montebelo, Alexandra Ranger, Jacques Laclau, Jean-Paul |
author_facet |
Formaglio, Greta Krusche, Alex Vladimir Mareschal, Louis Bouillet, Jean-Pierre De Moraes Gonçalves, Jose Leonardo Nouvellon, Yann Delgado-Rojas, Juan Sinforiano Montebelo, Alexandra Ranger, Jacques Laclau, Jean-Paul |
author_sort |
Formaglio, Greta |
title |
Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage |
title_short |
Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage |
title_full |
Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage |
title_fullStr |
Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage |
title_full_unstemmed |
Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage |
title_sort |
planting nitrogen-fixing trees in tropical eucalyptus plantations does not increase nutrient losses through drainage |
url |
http://agritrop.cirad.fr/604240/ http://agritrop.cirad.fr/604240/1/Formaglio%202023_FEM_Planting%20nitrogen-fixing%20trees%20in%20tropical%20Eucalyptus%20plantations%20does%20not%20increase%20nutrient%20losses%20through%20drainage.pdf |
work_keys_str_mv |
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_version_ |
1792500520231895040 |
spelling |
dig-cirad-fr-6042402024-02-14T21:53:22Z http://agritrop.cirad.fr/604240/ http://agritrop.cirad.fr/604240/ Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage. Formaglio Greta, Krusche Alex Vladimir, Mareschal Louis, Bouillet Jean-Pierre, De Moraes Gonçalves Jose Leonardo, Nouvellon Yann, Delgado-Rojas Juan Sinforiano, Montebelo Alexandra, Ranger Jacques, Laclau Jean-Paul. 2023. Forest Ecology and Management, 537:120940, 11 p.https://doi.org/10.1016/j.foreco.2023.120940 <https://doi.org/10.1016/j.foreco.2023.120940> Planting nitrogen-fixing trees in tropical Eucalyptus plantations does not increase nutrient losses through drainage Formaglio, Greta Krusche, Alex Vladimir Mareschal, Louis Bouillet, Jean-Pierre De Moraes Gonçalves, Jose Leonardo Nouvellon, Yann Delgado-Rojas, Juan Sinforiano Montebelo, Alexandra Ranger, Jacques Laclau, Jean-Paul eng 2023 Forest Ecology and Management K01 - Foresterie - Considérations générales F61 - Physiologie végétale - Nutrition Eucalyptus grandis arbre fixateur d'azote fertilisation fertilité du sol Acacia mangium plantation forestière croissance substance nutritive système racinaire forêt tropicale sol tropical lessivage du sol Eucalyptus http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_35228 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5274 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_15591 http://aims.fao.org/aos/agrovoc/c_2683 Brésil Sao Paulo http://aims.fao.org/aos/agrovoc/c_1070 http://aims.fao.org/aos/agrovoc/c_6789 Planting nitrogen (N) fixing species can provide substantial levels of N for tree growth, but it can also result in large nutrient losses through deep drainage, threatening soil fertility. Nutrient losses through deep leaching have been little studied in tropical forest plantations and comprehensive studies are needed before planting these species on a large scale. We assessed nutrient fluxes in soil solutions collected in monocultures and mixed plantations of Acacia mangium and Eucalyptus grandis in Sao Paulo state (Brazil) on Ferralsols fertilized with potassium, phosphorus and lime. Soil solution sampling began after replanting the trees in an experiment that had already been conducted for six years in a first rotation. We collected soil solutions beneath the forest floor and at depths of 30, 100 and 300 cm, and determined nutrient concentrations monthly for 3.5 years. Drainage fluxes were calculated at the depth of the lysimeters by modeling the water fluxes with Hydrus 1D. The N concentrations in topsoil solutions were generally higher in Acacia than in Eucalyptus monocultures, confirming that the introduction of Acacia increases soil N availability. However, these differences were no more observed at 100 cm depth and total N leaching at 300 cm depth was low in all the treatments, with an average of 4.8 kg N ha−1 yr−1, probably due to the rapid root system development and high nutrient requirements of these fast-growing trees. Leaching fluxes of K+, Cl−, Ca2+ and Mg2+ peaked in the upper soil layers after fertilizer applications, but the fluxes drastically decreased in deep soil layers. The low fluxes of dissolved nutrients in deep gravitational solutions in our study suggest that the risks of nutrient leaching losses are low in fast-growing plantations established on deep Ferralsols. Our results show that planting N-fixing trees can enhance the N availability for plants without producing large leaching losses, which confirms the interest of mixed plantations with N-fixing trees. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/604240/1/Formaglio%202023_FEM_Planting%20nitrogen-fixing%20trees%20in%20tropical%20Eucalyptus%20plantations%20does%20not%20increase%20nutrient%20losses%20through%20drainage.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.foreco.2023.120940 10.1016/j.foreco.2023.120940 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2023.120940 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.foreco.2023.120940 info:eu-repo/grantAgreement///ANR-2010-STRA-004//(FRA) Intensification écologique des écosystèmes de plantations forestières. Modélisation biophysique et évaluation socio-économique de l'association d'espèces fixatrices d'azote/Intens&fix |