Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years
Eucalyptus grandis plantations in Brazil are among the most productive forests of the world, reaching mean annual increments of about 50 m3/ha/yr over short (6 yr) rotations. Carbon, water, and nutrients budgets in one of these plantations were investigated through continuous eddy-covariance measurements of water vapor and CO2 fluxes over a 5-yr period encompassing two successive rotations (2 yr before and 3 yr after harvesting and replanting), with measurements of water table depth, soil water content to a depth of 10 m, and concentrations of nutrients in soil solutions. Before clearcutting, fine roots were found to a depth of 16 m. No seepage occurred below 5 m. Actual evapotranspiration (AET) was approximately equal to annual precipitation (1350 mm). Clearcutting resulted in a strong decrease in AET, a recharge of deep soil layers, and a rise in the water table. By the third year after replanting, the rapid increase in AET supported by the fast expansion of roots led to soil water depletion to a depth of 10 m. Clearcutting turned the forest from a strong C sink (net ecosystem productivity of about 1 tonne C/ha/month) into a C source, but the plantation turned back to a C sink from 7 months after replanting onwards.
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Subjects: | F60 - Physiologie et biochimie végétale, Eucalyptus grandis, bilan hydrique, équilibre nutritif (plante), plantation forestière, évapotranspiration, analyse de covariance, http://aims.fao.org/aos/agrovoc/c_2693, http://aims.fao.org/aos/agrovoc/c_8311, http://aims.fao.org/aos/agrovoc/c_35711, http://aims.fao.org/aos/agrovoc/c_3048, http://aims.fao.org/aos/agrovoc/c_2741, http://aims.fao.org/aos/agrovoc/c_28833, http://aims.fao.org/aos/agrovoc/c_1070, |
Online Access: | http://agritrop.cirad.fr/596000/ http://agritrop.cirad.fr/596000/1/596000.pdf |
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dig-cirad-fr-5960002024-01-29T02:52:31Z http://agritrop.cirad.fr/596000/ http://agritrop.cirad.fr/596000/ Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years. Nouvellon Yann, Stape Jose Luiz, Bonnefond J., Le Maire Guerric, Christina Mathias, Campoe Otavio, Hakamada Rodrigo, Loos R., Bouillet Jean-Pierre, Laclau Jean-Paul. 2014. International Forestry Review, 16 (5), n.spéc. XXIV IUFRO World Congress abstracts, Résumé : p. 258. 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> Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years Nouvellon, Yann Stape, Jose Luiz Bonnefond, J. Le Maire, Guerric Christina, Mathias Campoe, Otavio Hakamada, Rodrigo Loos, R. Bouillet, Jean-Pierre Laclau, Jean-Paul eng 2014 International Forestry Review F60 - Physiologie et biochimie végétale Eucalyptus grandis bilan hydrique équilibre nutritif (plante) plantation forestière évapotranspiration analyse de covariance http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_8311 http://aims.fao.org/aos/agrovoc/c_35711 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2741 http://aims.fao.org/aos/agrovoc/c_28833 Brésil http://aims.fao.org/aos/agrovoc/c_1070 Eucalyptus grandis plantations in Brazil are among the most productive forests of the world, reaching mean annual increments of about 50 m3/ha/yr over short (6 yr) rotations. Carbon, water, and nutrients budgets in one of these plantations were investigated through continuous eddy-covariance measurements of water vapor and CO2 fluxes over a 5-yr period encompassing two successive rotations (2 yr before and 3 yr after harvesting and replanting), with measurements of water table depth, soil water content to a depth of 10 m, and concentrations of nutrients in soil solutions. Before clearcutting, fine roots were found to a depth of 16 m. No seepage occurred below 5 m. Actual evapotranspiration (AET) was approximately equal to annual precipitation (1350 mm). Clearcutting resulted in a strong decrease in AET, a recharge of deep soil layers, and a rise in the water table. By the third year after replanting, the rapid increase in AET supported by the fast expansion of roots led to soil water depletion to a depth of 10 m. Clearcutting turned the forest from a strong C sink (net ecosystem productivity of about 1 tonne C/ha/month) into a C source, but the plantation turned back to a C sink from 7 months after replanting onwards. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/596000/1/596000.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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F60 - Physiologie et biochimie végétale Eucalyptus grandis bilan hydrique équilibre nutritif (plante) plantation forestière évapotranspiration analyse de covariance http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_8311 http://aims.fao.org/aos/agrovoc/c_35711 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2741 http://aims.fao.org/aos/agrovoc/c_28833 http://aims.fao.org/aos/agrovoc/c_1070 F60 - Physiologie et biochimie végétale Eucalyptus grandis bilan hydrique équilibre nutritif (plante) plantation forestière évapotranspiration analyse de covariance http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_8311 http://aims.fao.org/aos/agrovoc/c_35711 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2741 http://aims.fao.org/aos/agrovoc/c_28833 http://aims.fao.org/aos/agrovoc/c_1070 |
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F60 - Physiologie et biochimie végétale Eucalyptus grandis bilan hydrique équilibre nutritif (plante) plantation forestière évapotranspiration analyse de covariance http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_8311 http://aims.fao.org/aos/agrovoc/c_35711 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2741 http://aims.fao.org/aos/agrovoc/c_28833 http://aims.fao.org/aos/agrovoc/c_1070 F60 - Physiologie et biochimie végétale Eucalyptus grandis bilan hydrique équilibre nutritif (plante) plantation forestière évapotranspiration analyse de covariance http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_8311 http://aims.fao.org/aos/agrovoc/c_35711 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2741 http://aims.fao.org/aos/agrovoc/c_28833 http://aims.fao.org/aos/agrovoc/c_1070 Nouvellon, Yann Stape, Jose Luiz Bonnefond, J. Le Maire, Guerric Christina, Mathias Campoe, Otavio Hakamada, Rodrigo Loos, R. Bouillet, Jean-Pierre Laclau, Jean-Paul Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years |
description |
Eucalyptus grandis plantations in Brazil are among the most productive forests of the world, reaching mean annual increments of about 50 m3/ha/yr over short (6 yr) rotations. Carbon, water, and nutrients budgets in one of these plantations were investigated through continuous eddy-covariance measurements of water vapor and CO2 fluxes over a 5-yr period encompassing two successive rotations (2 yr before and 3 yr after harvesting and replanting), with measurements of water table depth, soil water content to a depth of 10 m, and concentrations of nutrients in soil solutions. Before clearcutting, fine roots were found to a depth of 16 m. No seepage occurred below 5 m. Actual evapotranspiration (AET) was approximately equal to annual precipitation (1350 mm). Clearcutting resulted in a strong decrease in AET, a recharge of deep soil layers, and a rise in the water table. By the third year after replanting, the rapid increase in AET supported by the fast expansion of roots led to soil water depletion to a depth of 10 m. Clearcutting turned the forest from a strong C sink (net ecosystem productivity of about 1 tonne C/ha/month) into a C source, but the plantation turned back to a C sink from 7 months after replanting onwards. |
format |
article |
topic_facet |
F60 - Physiologie et biochimie végétale Eucalyptus grandis bilan hydrique équilibre nutritif (plante) plantation forestière évapotranspiration analyse de covariance http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_8311 http://aims.fao.org/aos/agrovoc/c_35711 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2741 http://aims.fao.org/aos/agrovoc/c_28833 http://aims.fao.org/aos/agrovoc/c_1070 |
author |
Nouvellon, Yann Stape, Jose Luiz Bonnefond, J. Le Maire, Guerric Christina, Mathias Campoe, Otavio Hakamada, Rodrigo Loos, R. Bouillet, Jean-Pierre Laclau, Jean-Paul |
author_facet |
Nouvellon, Yann Stape, Jose Luiz Bonnefond, J. Le Maire, Guerric Christina, Mathias Campoe, Otavio Hakamada, Rodrigo Loos, R. Bouillet, Jean-Pierre Laclau, Jean-Paul |
author_sort |
Nouvellon, Yann |
title |
Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years |
title_short |
Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years |
title_full |
Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years |
title_fullStr |
Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years |
title_full_unstemmed |
Carbon, water and nutrient balances of a Eucalyptus grandis plantation in Brazil over 5 years |
title_sort |
carbon, water and nutrient balances of a eucalyptus grandis plantation in brazil over 5 years |
url |
http://agritrop.cirad.fr/596000/ http://agritrop.cirad.fr/596000/1/596000.pdf |
work_keys_str_mv |
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