Harvest residue effects on soil organic matter, nutrients and microbial biomass in eucalypt plantations in Kerala, India

Kumaraswamy, S.; Mendham, Daniel; Grove, T. S.; O’Connell, A. M.; Sankaran, K. V.; Rance, S. J.

doi:10.1016/j.foreco.2014.05.021

Cited by 40 publications

(25 citation statements)

References 37 publications

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“…This observation has been attributed to several mechanisms: high buffer capacity of the soil, slow decomposition of forest residues, a long harvesting return interval (more than seven years), and fast growth and litter deposition from new Eucalyptus plantations. However, reduction in soil C and nutrient stocks has Forests 2016, 7, 319 9 of 14 been observed in wet tropical sites with sandy soils, high productivity forests, and successive harvest treatments [16,17,29,31,33]. Our study agrees with this latter set of studies and shows substantial changes in soil C and nutrients following removal of harvest residues.…”

Section: Effects Of Harvest Residue Strategies On Soil C and Availablsupporting

confidence: 89%

“…In some cases, no losses in soil C or nutrient stocks have been reported, even with increases in nutrients exported during harvest [4,14,[29][30][31][32][33]. This observation has been attributed to several mechanisms: high buffer capacity of the soil, slow decomposition of forest residues, a long harvesting return interval (more than seven years), and fast growth and litter deposition from new Eucalyptus plantations.…”

Section: Effects Of Harvest Residue Strategies On Soil C and Availablmentioning

confidence: 99%

“…Despite the small effect of whole-tree harvest on the soil nutrient stocks described by many authors [4,14,[29][30][31][32][33], this and other studies emphasize the importance of the maintenance of forest residues on the soil, especially in tropical sites with low buffer capacity soils, high productivity, and short cycle plantations [14,16,[29][30][31]33]. In these sites, removal of forest residues can result in loss of wood productivity of up to 40% due to the low nutrient pools remaining in the soil [16].…”

Section: Management Considerationsmentioning

confidence: 99%

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Effect of Timber Harvest Intensities and Fertilizer Application on Stocks of Soil C, N, P, and S

Menegale

Rocha

Harrison

et al. 2016

Forests

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Abstract:The purpose of this study was to determine the stocks of available P and S, total N, and oxidizable C at depth in an Oxisol cultivated with Eucalyptus in Brazil following different timber harvest intensities and fertilizer application over 12 years. The harvest regimes considered were (i) conventional stem-only harvest (all forest residues were maintained on the soil); (ii) whole-tree harvest (only litter was maintained on the soil-all slash, stemwood, and bark were removed); and (iii) whole-tree harvest + litter layer removal. The site was planted in 2004 considering three timber harvest intensities, some with and some without N and P fertilization. In 2012 the experiment was reinstalled, and all the treatments were reapplied in the each plot. From 2004 to 2016, nutrient accumulation and soil N, P, and S stocks were assessed in the 0-20 cm layer. Also in 2016, soil N, P, S, and oxidizable C stocks were measured to 2 m depth. For each treatment, the net balance of N, P, and S were calculated from soil stocks and harvest outputs during two forest rotations. A reduction in all nutrient stocks was observed in the 0-20 cm layer for all treatments. For N, this reduction was 20% smaller in the stem-only harvest treatment and 40% higher when no N fertilizer was applied, when compared to other treatments. Stem-only harvest treatment was observed to reduce the loss of N, P, and S due to harvest by 300, 30, and 25 kg·ha −1 , respectively, when compared to the whole-tree harvest + litter layer removal treatment.

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Section: Effects Of Harvest Residue Strategies On Soil C and Availablsupporting

confidence: 89%

Section: Effects Of Harvest Residue Strategies On Soil C and Availablmentioning

confidence: 99%

Section: Management Considerationsmentioning

confidence: 99%

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Effect of Timber Harvest Intensities and Fertilizer Application on Stocks of Soil C, N, P, and S

Menegale

Rocha

Harrison

et al. 2016

Forests

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“…De acordo com Kumaraswamy et al (2014), manter os resíduos pode ajudar a conservar a fertilidade do solo em rotações subsequentes, além de minimizar a perda de nutrientes, no entanto, os fertilizantes ainda são uma parte importante do regime de gestão de nutrientes para as plantações produtivas.…”

Section: Resultsunclassified

Caracterização da fertilidade do solo em um povoamento de Eucalyptus dunnii Maiden no bioma Pampa do Rio Grande do Sul

2016

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Resumo: O monitoramento da qualidade do solo, como das propriedades químicas, pode fornecer subsídios para o manejo silvicultural e conservação do solo, visando à manutenção da produtividade de sítios florestais. O presente trabalho teve como objetivo avaliar as mudanças nos atributos químicos do solo em um povoamento de Eucalyptus dunnii, aos dois e aos cinco anos de idade, no bioma Pampa do Rio Grande do Sul. Para tanto, foram coletadas amostras de solo em cinco profundidades (0-20, 20-40, 40-60, 60-80 e 80-100 cm), com posterior determinação de atributos físicos, além de pH, matéria orgânica, teores de alumínio, cálcio, magnésio, potássio e fósforo, bem como CTC potencial e efetiva, saturação por bases e por alumínio. Aplicou-se o teste t (α = 5 %) para detecção de diferenças significativas nas propriedades do solo, em função do tempo. A análise química do solo revelou que, em ambas ocasiões, houveram baixos teores de nutrientes, matéria orgânica, bem como pH ácido, além de alta saturação por alumínio. Após três anos de crescimento das árvores de Eucalyptus dunnii o pH reduziu em todas as profundidades do solo, o cálcio e potássio reduziram em 20-40 cm e 0-20 cm, respectivamente. Já o teor de alumínio aumentou em todas as profundidades, assim como o fósforo e a matéria orgânica de 40 até 100 cm do solo. Após três anos da primeira avaliação do solo, verificou-se alteração da fertilidade do mesmo, principalmente no pH, matéria orgânica e teores de potássio e fósforo.Palavras -chave: Nutrição florestal; Fertilidade do solo; Silvicultura. Characterization of soil fertility in a Eucalyptus dunnii Maiden stand in Pampa biome of RioGrande do Sul state Abstract: Monitoring ecological aspects, such as chemical soil quality, can provide subsidies for silvicultural management and soil conservation, to maintain the productivity of forest sites. This study aimed to evaluate changes in soil chemical properties in a Eucalyptus dunnii stand, in two and five-year-old, in the Pampa biome of Rio Grande do Sul state. Therefore, at two and the five-year-old stand soil samples were collected at five depths (0-20, 20-40, 40-60, 60-80 e 80-100 cm), with subsequent determination of physical attributes and pH, organic matter, content of aluminum, calcium, magnesium, potassium and phosphorus, as well as potential and effective CEC, base saturation and aluminum saturation. We applied the t-test (α = 5%) to detect significant differences in the properties of soil in function of time. The soil chemical analysis revealed that, on both occasions, there were low levels of nutrients, organic matter as well as acid pH, and high aluminum saturation. After three years of growth of Eucalyptus dunnii trees, the pH decreased in all soil depths, Ca and K decreased by 20-40 cm and 0-20 cm, respectively. The aluminum content increased at all depths, as well as phosphorus and organic matter from 40 to 100 cm of soil. After three years of the first evaluation of the soil, there was change of fertility, especially in pH, organic matter and phosphorus and...

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“…Following harvest, a large percentage of aerial biomass (leaves, bark and twigs) remaining on the site undergoes decomposition at an intensity that varies according to the intrinsic parameters (residue size, proportions of compounds with a higher and lower degradation resistance), the diversity of existing organisms in the particular soil, and climatic conditions such as temperature and moisture. The decomposition of harvest residues and the subsequent release of nutrients determine the growth conditions and the availability of nutrients for the next rotation (O'Connell et al, 2004;Kumaraswamy et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Decomposition of Eucalyptus sp. and Pinus taeda Harvest Residues under Controlled Temperature and Moisture Conditions

Sánchez¹,

Pino²,

Hernández³

2018

OJF

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Harvest residue effects on soil organic matter, nutrients and microbial biomass in eucalypt plantations in Kerala, India

Cited by 40 publications

References 37 publications

Effect of Timber Harvest Intensities and Fertilizer Application on Stocks of Soil C, N, P, and S

Effect of Timber Harvest Intensities and Fertilizer Application on Stocks of Soil C, N, P, and S

Caracterização da fertilidade do solo em um povoamento de <em>Eucalyptus dunnii</em> Maiden no bioma Pampa do Rio Grande do Sul

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

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Harvest residue effects on soil organic matter, nutrients and microbial biomass in eucalypt plantations in Kerala, India

Cited by 40 publications

References 37 publications

Effect of Timber Harvest Intensities and Fertilizer Application on Stocks of Soil C, N, P, and S

Effect of Timber Harvest Intensities and Fertilizer Application on Stocks of Soil C, N, P, and S

Caracterização da fertilidade do solo em um povoamento de <em>Eucalyptus dunnii</em> Maiden no bioma Pampa do Rio Grande do Sul

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