Nutrient export and harvest residue decomposition patterns of a Eucalyptus dunnii Maiden plantation in temperate climate of Uruguay

Hernández, Jorge; Pino, Amabelia del; Salvo, Lucía; Arrarte, Gimena

doi:10.1016/j.foreco.2009.03.050

Cited by 73 publications

(80 citation statements)

References 14 publications

(17 reference statements)

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“…The introduction of clones with a higher yield potential and, consequently, with higher nutritional requirements, is most likely also an accelerating factor of chemical degradation of the soils, considering the close relationship between plant nutrient content and biomass productivity (Miller, 1984;Khanna & Ulrich, 1984;Herbert & Robertson, 1991;Novais & Barros, 1997;Hernández et al, 2009). In the study of a nine year-old Eucalyptus dunnii forest in temperate climate in Uruguay, it was found that commercial logs accounted for 61 % of the biomass produced, but that only 27 % of the total N, 35 % of the P, 8 % of the K, 16 % of the Ca and 41 % of the Mg present in the forest were exported with the product.…”

Section: Introductionmentioning

confidence: 99%

“…In the study of a nine year-old Eucalyptus dunnii forest in temperate climate in Uruguay, it was found that commercial logs accounted for 61 % of the biomass produced, but that only 27 % of the total N, 35 % of the P, 8 % of the K, 16 % of the Ca and 41 % of the Mg present in the forest were exported with the product. When logs are exported with off-site debarking, nutrient exports increase to 41, 55, 46, 68 and 66 % of the total extraction of N, P, K, Ca and Mg, respectively (Hernández et al, 2009). Knowledge about the extent of possible deterioration, the chronology of occurrence and relations between the availability of these nutrients and forest productivity is therefore fundamental for the definition of management practices which aim at maintaining and improving in soil quality, essential for a maximum sustainable economic yield.…”

Section: Introductionmentioning

confidence: 99%

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Alterations of soil chemical properties by eucalyptus cultivation in five regions in the Rio Doce Valley

Leite¹,

Silva

Novais

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYLittle is currently known about modifications in edaphic characteristics caused by short-rotation eucalyptus and the impacts of these alterations on the sustainability of eucalyptus wood production. This study was carried out to identify theses changes at five sites of eucalyptus plantation in the region of the Rio Doce Valley, state of Minas Gerais, Brazil. Areas with more than three previous eucalyptus cycles, adjacent to pasture land or native forest, were chosen. Soil samples were collected and soil fertility analyzed by routine methods and other fractionation methods in order to measure alterations in the K, Ca and Mg contents as a consequence of eucalyptus cultivation. In the eucalyptus areas, reductions in the exchangeable Ca 2+ , Mg 2+ and K + contents and pH were observed and increased Al 3+ and H + Al contents. Of all nutrients, only P contents (Mehlich-1 P) increased in the eucalyptus areas. The reduction in exchangeable forms and in medium-term soil nutrient pools indicates the need for higher nutrient rates than the currently applied in order to prevent nutritional limitations and soil nutrient exhaustion. After several eucalyptus rotations there was a recovery in the SOM content in comparison to degraded pasture soils, although not to the level of the native forest soil. The positive correlation between effective CEC and medium-term nonexchangeable Ca, Mg and K with SOM emphasizes the need for adequate fertilizer and plant residue management to sustain or even increase forest productivity in future cycles.Index terms: exchangeable cations, fertilization, nutrient exhaustion, nutrient reserves.(

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alterations of soil chemical properties by eucalyptus cultivation in five regions in the Rio Doce Valley

Leite¹,

Silva

Novais

et al. 2010

Rev. Bras. Ciênc. Solo

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“…This has also been recorded by and Viera et al (2014); the authors attribute this to the presence of reproductive wastes (which have higher concentrations of N) in the miscellany fraction. Hernández et al (2009) studied E. dunnii and found a macronutrient transfer order of Ca > N > Mg > K > P. Viera et al (2014), who studied E. urophylla × E. globulus, and Ashagrie and Zech (2013), who studied E. globulus, found a transfer order of Ca > N > K > Mg > S > P. Corrêa et al (2013), who studied E. dunnii, and Silva et al (2015), who studied E. camaldulensis, observed a transfer order of Ca > N > K > Mg > P > S, results similar to those obtained in this study. It is possible that Ca was dominant because of its low mobility in phloem, which hinders its translocation during senescence.…”

Section: ----------------------------------------------------G Ha -1 mentioning

confidence: 99%

NUTRIENT RETURN THROUGH LITTERFALL IN A Eucalyptus dunnii Maiden STAND IN SANDY SOIL

et al. 2016

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-In a forest stand, litterfall is primarily responsible for the retention and return of nutrients to the soil. The objective of this study was to evaluate the return of nutrients through litterfall in a stand of Eucalyptus dunnii in a Pampa biome. For quantification of litterfall, four 420-m² installments were marked; within each one, four 0.50-m² collection plots were distributed. For the collection of thick branches, four 7.00-m² subplots were staked out. The collected litterfall was separated into leaf, twig, thick branch, and miscellany fractions for subsequent chemical analysis. The total litterfall measured was 6.99 Mg ha -1 yr -1 , and comprised 61.57% leaves, 17.34% twigs, 13.83% thick branches, and 7.26% miscellany. The total amount of macronutrients in the litterfall was 160.22 kg ha -1 yr -1 , and the macronutrient transfer order was the same for the leaf, twig, and thick branch fractions (Ca > N > K > Mg > S > P). The total quantity of micronutrients was 7.55 kg ha -1 yr -1 , and the transfer order was Mn > Fe > B > Zn > Cu. Maintaining litterfall on the site, especially in degraded or low fertility soils like in the Pampa biome, may contribute to possible improvements in soil characteristics.Keywords: Forest nutrition; Nutrient cycling; Pampa biome. DEVOLUÇÃO DE NUTRIENTES ATRAVÉS DA SERAPILHEIRA PRODUZIDA EM UM POVOAMENTO DE Eucalyptus dunnii Maiden EM SOLO ARENOSORESUMO -A produção de serapilheira é a principal responsável pela retenção e devolução de nutrientes para o solo em um povoamento florestal. O objetivo deste trabalho foi avaliar a devolução de nutrientes por meio da serapilheira produzida em um povoamento de Eucalyptus dunnii, no bioma Pampa. Para a quantificação da serapilheira produzida, foram demarcadas quatro parcelas de 420 m², e no interior de cada parcela foram distribuídos quatro coletores de 0,50 m². Para a coleta dos galhos grossos demarcou-se quatro sub-parcelas de 7,00 m 2 . O material coletado foi separado nas frações folhas, galhos grossos, galhos finos e miscelânea, com posterior análise química. A serapilheira produzida foi de 6,99 Mg ha -1 ano -1 , distribuída em 61,57%, 17,34%, 13,83% e 7,26%, nas folhas, galhos finos, galhos grossos e miscelânea, respectivamente. A quantidade de macronutrientes na serapilheira foi de 160,22 kg ha -1 ano -1 , sendo que, a ordem de transferência foi a mesma para as frações folhas, galhos finos e galhos grossos (Ca > N > K > Mg > S > P). Para os micronutrientes a quantidade foi 7,55 kg ha -1 ano -1 , seguindo a ordem decrescente de Mn > Fe > B > Zn > Cu. A manutenção da serapilheira no sítio, principalmente em solos degradados ou de baixa fertilidade natural, como é o caso da região do bioma Pampa, poderá contribuir com possíveis melhorias nas características do solo.Palavras-chave: Nutrição florestal; Ciclagem de nutrientes; Bioma Pampa.

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“…Also for E. grandis Hill ex Maiden and E. dunnii Maiden, the rapid decomposition of leaves (50% biomass loss after two years) was followed by that of twigs smaller than 1 cm in diameter (Hernández et al, 2009). In Brazil, Santos Costa et al (2005) reported 30% biomass loss for E. grandis at the end of the decomposition period (382 days).…”

Section: Introductionmentioning

confidence: 99%

“…Fierer et al (2001) reported that phenolic compounds negatively affect the decomposition rate and the release of N from forestry residues. In forest plantations of Uruguay, despite the differences found in decomposition rate according to residue type (Hernández et al, 2009), no information is available regarding the effect of the chemical composition of residues on their decomposition rate. Moreover, in the northern region Pinus and Eucalyptus are planted on low fertility soils, where the nutrient availability for the next turn, and the long term sustainability of this production system are important concerns.…”

Section: Introductionmentioning

confidence: 99%

Decomposition of <i>Eucalyptus sp.</i> and <i>Pinus taeda</i> Harvest Residues under Controlled Temperature and Moisture Conditions

Sánchez¹,

Pino²,

Hernández³

2018

OJF

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Nutrient export and harvest residue decomposition patterns of a Eucalyptus dunnii Maiden plantation in temperate climate of Uruguay

Cited by 73 publications

References 14 publications

Alterations of soil chemical properties by eucalyptus cultivation in five regions in the Rio Doce Valley

Alterations of soil chemical properties by eucalyptus cultivation in five regions in the Rio Doce Valley

NUTRIENT RETURN THROUGH LITTERFALL IN A Eucalyptus dunnii Maiden STAND IN SANDY SOIL

Decomposition of <i>Eucalyptus sp.</i> and <i>Pinus taeda</i> Harvest Residues under Controlled Temperature and Moisture Conditions

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Nutrient export and harvest residue decomposition patterns of a Eucalyptus dunnii Maiden plantation in temperate climate of Uruguay

Cited by 73 publications

References 14 publications

Alterations of soil chemical properties by eucalyptus cultivation in five regions in the Rio Doce Valley

Alterations of soil chemical properties by eucalyptus cultivation in five regions in the Rio Doce Valley

NUTRIENT RETURN THROUGH LITTERFALL IN A Eucalyptus dunnii Maiden STAND IN SANDY SOIL

Decomposition of &lt;i&gt;Eucalyptus sp.&lt;/i&gt; and &lt;i&gt;Pinus taeda&lt;/i&gt; Harvest Residues under Controlled Temperature and Moisture Conditions

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Decomposition of <i>Eucalyptus sp.</i> and <i>Pinus taeda</i> Harvest Residues under Controlled Temperature and Moisture Conditions