2012
DOI: 10.1590/s0104-77602012000200005
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Oxidizable fraction of organic carbon in an Argisol under different land use systems

Abstract: ABSTRACT:The objective of this study was to evaluate carbon input in labile and stable fractions in an ARGISOL of northwestern Brazil under different land use systems. Use systems being evaluated include: forest -MA (reference), agrosilvopasture -TCP (teak, cocoa and pasture); agroforest -TC (teak and cocoa); teak forest at 8 and 5 years -T8 and T5, and pasture -PA. In each system three furrows were made at depths of 0-5 cm, 5-10 cm and 10-20 cm. An area consisting of native vegetation (forest) adjacent to the… Show more

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Cited by 10 publications
(5 citation statements)
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References 21 publications
(19 reference statements)
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“…Esse resultado pode estar associado ao menor aporte de biomassa vegetal, em razão da queima da palhada. Na MN, o aporte constante de resíduos vegetais sobre a superfície do solo, aliado à não perturbação do sistema, contribuiu para os maiores valores de COp (Müller et al, 2012;Rosseti et al, 2014). Segundo Rossi et al (2012), sistemas com maior aporte de biomassa acumulam C preferencialmente na fração particulada, que representa uma variável mais sensível às alterações de manejo em curto prazo do que o COT.…”
Section: Resultsunclassified
“…Esse resultado pode estar associado ao menor aporte de biomassa vegetal, em razão da queima da palhada. Na MN, o aporte constante de resíduos vegetais sobre a superfície do solo, aliado à não perturbação do sistema, contribuiu para os maiores valores de COp (Müller et al, 2012;Rosseti et al, 2014). Segundo Rossi et al (2012), sistemas com maior aporte de biomassa acumulam C preferencialmente na fração particulada, que representa uma variável mais sensível às alterações de manejo em curto prazo do que o COT.…”
Section: Resultsunclassified
“…), and under a native forest (1) . erosive effects, as a consequence of soil tillage, and the practice of straw burning before harvesting, has a great impact on SOM (Tavares et al, 2010;Müller et al, 2012;Rossetti et al, 2014). In all evaluated systems, TOC contents were higher on the surface layer and decreased with depth (Table 2).…”
Section: Resultsmentioning
confidence: 98%
“…The increasing levels of P in the soil stimulated coffee root growth (Matsumoto et al, 2008;Martins et al, 2013). Thus, the increase of the root system favors an increased aggregation rate of the soil and consequently, improves the protection of organic matter and contributes to an increase in soil LC (Müller et al, 2012).…”
Section: Resultsmentioning
confidence: 99%
“…The labile carbon changes more than the total organic carbon content in a shorter time interval and is a fraction sensitive to changes in cropping systems (Rangel et al, 2008;Müller et al, 2012). The levels of labile C in coffee plantations represent on average 44% of the organic C content in the soil (Rangel et al, 2008).…”
Section: Introductionmentioning
confidence: 99%