Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture

Autores
Graciano, Corina; Goya, Juan Francisco; Frangi, Jorge Luis; Verne, Nole C.
Año de publicación
2007
Idioma
inglés
Tipo de recurso
parte de libro
Estado
versión publicada
Descripción
Eucalyptus plantations represent an important forest area in NE Argentina, with 140 000 hectares covered with Eucalyptus grandis (Hill ex Maiden). Plantations in this area have high mean annual increments (30-40 m³.ha-1año-1) and high total productivity (220-370 Mg. ha-1) although they are established on sandy soils. These soils have low organic matter and nutrients contents. Therefore, it is important to analyze if the present high productivity can be sustained along rotations. Sustainability implies to maintain both productivity and nutrient status. Knowledge ofnutrients fluxes and nutrient use efficiency is a key issue to understand the way in which plantations use mineral resources in order to evaluate and select the best management practices to sustain productivity. In this chapter, productivity and nutrient cycling of Eucalyptus grandis plantations are analyzed through chronosequences established on sandy soils. The point of view adopted consider that the concept of sustainable silviculture has to be applied and that it has effects on long term forest management. Therefore, nutrient content and nutrient export in different sites and ages are analyzed, as well as litterfall decomposition. These data allow for us to estimate the system yield stability, considering the economic dimension of sustainability. Results highlight that it is necessary to manage the export of nutrients with harvest, tending to their conservation. Although the soils where E. grandis plantations are established have low natural fertility, productivity is high comparing with other regions of similar clime. Thus, nutrient use efficiency and biomass production in the studied sites are high. The highest N demand occurs 3 to 4 years after planting, whereas the highest P demand occurs 6 to 8 years after planting. Shorter rotations increase export of nutrients due to harvest. Harvest residues contain a high amount of nutrients, so their incorporation to the soil after harvest can be a good practice to maintain system nutrients pools. Nutrient stability analysis in different harvest scenarios and rotation ages show that N and Ca are the most critics nutrients in this productive system, while P and K are the more stable nutrients. To compensate nutrient losses it is necessary to apply fertilizers, specially N and P. Applications should take into account soil type and the risk of water deficit.
Facultad de Ciencias Agrarias y Forestales
Materia
Ingeniería Forestal
nutrient cycling
fertilization
nutrient extraction
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/173506

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network_name_str SEDICI (UNLP)
spelling Eucalyptus grandis plantations in Argentina in the context of sustainable silvicultureGraciano, CorinaGoya, Juan FranciscoFrangi, Jorge LuisVerne, Nole C.Ingeniería Forestalnutrient cyclingfertilizationnutrient extractionEucalyptus plantations represent an important forest area in NE Argentina, with 140 000 hectares covered with Eucalyptus grandis (Hill ex Maiden). Plantations in this area have high mean annual increments (30-40 m³.ha-1año-1) and high total productivity (220-370 Mg. ha-1) although they are established on sandy soils. These soils have low organic matter and nutrients contents. Therefore, it is important to analyze if the present high productivity can be sustained along rotations. Sustainability implies to maintain both productivity and nutrient status. Knowledge ofnutrients fluxes and nutrient use efficiency is a key issue to understand the way in which plantations use mineral resources in order to evaluate and select the best management practices to sustain productivity. In this chapter, productivity and nutrient cycling of Eucalyptus grandis plantations are analyzed through chronosequences established on sandy soils. The point of view adopted consider that the concept of sustainable silviculture has to be applied and that it has effects on long term forest management. Therefore, nutrient content and nutrient export in different sites and ages are analyzed, as well as litterfall decomposition. These data allow for us to estimate the system yield stability, considering the economic dimension of sustainability. Results highlight that it is necessary to manage the export of nutrients with harvest, tending to their conservation. Although the soils where E. grandis plantations are established have low natural fertility, productivity is high comparing with other regions of similar clime. Thus, nutrient use efficiency and biomass production in the studied sites are high. The highest N demand occurs 3 to 4 years after planting, whereas the highest P demand occurs 6 to 8 years after planting. Shorter rotations increase export of nutrients due to harvest. Harvest residues contain a high amount of nutrients, so their incorporation to the soil after harvest can be a good practice to maintain system nutrients pools. Nutrient stability analysis in different harvest scenarios and rotation ages show that N and Ca are the most critics nutrients in this productive system, while P and K are the more stable nutrients. To compensate nutrient losses it is necessary to apply fertilizers, specially N and P. Applications should take into account soil type and the risk of water deficit.Facultad de Ciencias Agrarias y ForestalesNova Science Publishers2007info:eu-repo/semantics/bookPartinfo:eu-repo/semantics/publishedVersionCapitulo de librohttp://purl.org/coar/resource_type/c_3248info:ar-repo/semantics/parteDeLibroapplication/pdf39-76http://sedici.unlp.edu.ar/handle/10915/173506enginfo:eu-repo/semantics/altIdentifier/isbn/1-60021-490-8info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:46:35Zoai:sedici.unlp.edu.ar:10915/173506Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:46:35.32SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
title Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
spellingShingle Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
Graciano, Corina
Ingeniería Forestal
nutrient cycling
fertilization
nutrient extraction
title_short Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
title_full Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
title_fullStr Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
title_full_unstemmed Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
title_sort Eucalyptus grandis plantations in Argentina in the context of sustainable silviculture
dc.creator.none.fl_str_mv Graciano, Corina
Goya, Juan Francisco
Frangi, Jorge Luis
Verne, Nole C.
author Graciano, Corina
author_facet Graciano, Corina
Goya, Juan Francisco
Frangi, Jorge Luis
Verne, Nole C.
author_role author
author2 Goya, Juan Francisco
Frangi, Jorge Luis
Verne, Nole C.
author2_role author
author
author
dc.subject.none.fl_str_mv Ingeniería Forestal
nutrient cycling
fertilization
nutrient extraction
topic Ingeniería Forestal
nutrient cycling
fertilization
nutrient extraction
dc.description.none.fl_txt_mv Eucalyptus plantations represent an important forest area in NE Argentina, with 140 000 hectares covered with Eucalyptus grandis (Hill ex Maiden). Plantations in this area have high mean annual increments (30-40 m³.ha-1año-1) and high total productivity (220-370 Mg. ha-1) although they are established on sandy soils. These soils have low organic matter and nutrients contents. Therefore, it is important to analyze if the present high productivity can be sustained along rotations. Sustainability implies to maintain both productivity and nutrient status. Knowledge ofnutrients fluxes and nutrient use efficiency is a key issue to understand the way in which plantations use mineral resources in order to evaluate and select the best management practices to sustain productivity. In this chapter, productivity and nutrient cycling of Eucalyptus grandis plantations are analyzed through chronosequences established on sandy soils. The point of view adopted consider that the concept of sustainable silviculture has to be applied and that it has effects on long term forest management. Therefore, nutrient content and nutrient export in different sites and ages are analyzed, as well as litterfall decomposition. These data allow for us to estimate the system yield stability, considering the economic dimension of sustainability. Results highlight that it is necessary to manage the export of nutrients with harvest, tending to their conservation. Although the soils where E. grandis plantations are established have low natural fertility, productivity is high comparing with other regions of similar clime. Thus, nutrient use efficiency and biomass production in the studied sites are high. The highest N demand occurs 3 to 4 years after planting, whereas the highest P demand occurs 6 to 8 years after planting. Shorter rotations increase export of nutrients due to harvest. Harvest residues contain a high amount of nutrients, so their incorporation to the soil after harvest can be a good practice to maintain system nutrients pools. Nutrient stability analysis in different harvest scenarios and rotation ages show that N and Ca are the most critics nutrients in this productive system, while P and K are the more stable nutrients. To compensate nutrient losses it is necessary to apply fertilizers, specially N and P. Applications should take into account soil type and the risk of water deficit.
Facultad de Ciencias Agrarias y Forestales
description Eucalyptus plantations represent an important forest area in NE Argentina, with 140 000 hectares covered with Eucalyptus grandis (Hill ex Maiden). Plantations in this area have high mean annual increments (30-40 m³.ha-1año-1) and high total productivity (220-370 Mg. ha-1) although they are established on sandy soils. These soils have low organic matter and nutrients contents. Therefore, it is important to analyze if the present high productivity can be sustained along rotations. Sustainability implies to maintain both productivity and nutrient status. Knowledge ofnutrients fluxes and nutrient use efficiency is a key issue to understand the way in which plantations use mineral resources in order to evaluate and select the best management practices to sustain productivity. In this chapter, productivity and nutrient cycling of Eucalyptus grandis plantations are analyzed through chronosequences established on sandy soils. The point of view adopted consider that the concept of sustainable silviculture has to be applied and that it has effects on long term forest management. Therefore, nutrient content and nutrient export in different sites and ages are analyzed, as well as litterfall decomposition. These data allow for us to estimate the system yield stability, considering the economic dimension of sustainability. Results highlight that it is necessary to manage the export of nutrients with harvest, tending to their conservation. Although the soils where E. grandis plantations are established have low natural fertility, productivity is high comparing with other regions of similar clime. Thus, nutrient use efficiency and biomass production in the studied sites are high. The highest N demand occurs 3 to 4 years after planting, whereas the highest P demand occurs 6 to 8 years after planting. Shorter rotations increase export of nutrients due to harvest. Harvest residues contain a high amount of nutrients, so their incorporation to the soil after harvest can be a good practice to maintain system nutrients pools. Nutrient stability analysis in different harvest scenarios and rotation ages show that N and Ca are the most critics nutrients in this productive system, while P and K are the more stable nutrients. To compensate nutrient losses it is necessary to apply fertilizers, specially N and P. Applications should take into account soil type and the risk of water deficit.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.none.fl_str_mv info:eu-repo/semantics/bookPart
info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/173506
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dc.language.none.fl_str_mv eng
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dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/isbn/1-60021-490-8
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
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39-76
dc.publisher.none.fl_str_mv Nova Science Publishers
publisher.none.fl_str_mv Nova Science Publishers
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