Carbon, nitrogen and organic C fractions in topsoil affected by conversion from silvopastoral to different land use systems

Matos, Eduardo da Silva; Freese, Dirk; Mendonça, E. S.; Śla̧zak, Anna; Hüttl, Reinhard F.

doi:10.1007/s10457-010-9314-y

Cited by 31 publications

(26 citation statements)

References 30 publications

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“…Contrary to SOC levels (Table 2), LF levels appear to be more responsive to the effects of cover crops in the 0.00-0.10 m layer, confirming that this compartment can be used as a sensitive indicator of changes in soil organic matter in response to modifications in management practices. These results are also in line with other reports (Loss et al, 2011;Matos et al, 2011;Xavier et al, 2013).…”

Section: Soil Light Fractionsupporting

confidence: 94%

Changes in Soil Organic Carbon Fractions in Response to Cover Crops in an Orange Orchard

Oliveira

Xavier

2016

Rev. Bras. Ciênc. Solo

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ABSTRACT:The cultivation of cover crops intercropped with fruit trees is an alternative to maintain mulch cover between plant rows and increase soil organic carbon (C) stocks. The objective of this study was to evaluate changes in soil total organic C content and labile organic matter fractions in response to cover crop cultivation in an orange orchard. The experiment was performed in the state of Bahia, in a citrus orchard with cultivar 'Pera' orange (Citrus sinensis) at a spacing of 6 × 4 m. A randomized complete block design with three replications was used. The following species were used as cover crops: Brachiaria (Brachiaria decumbes) -BRAQ, pearl millet (Pennisetum glaucum) -MIL, jack bean (Canavalia ensiformis) -JB, blend (50 % each) of jack bean + millet (JB/MIL), and spontaneous vegetation (SPV). The cover crops were broadcast-seeded between the rows of orange trees and mechanically mowed after flowering. Soil sampling at depths of 0.00-0.10, 0.10-0.20, and 0.20-0.40 m was performed in small soil trenches. The total soil organic C (SOC) content, light fraction (LF), and the particulate organic C (POC), and oxidizable organic C fractions were estimated. Total soil organic C content was not significantly changed by the cover crops, indicating low sensitivity in reacting to recent changes in soil organic matter due to management practices. Grasses enabled a greater accumulation of SOC stocks in 0.00-0.40 m compared to all other treatments. Jack bean cultivation increased LF and the most labile oxidizable organic C fraction (F1) in the soil surface and the deepest layer tested. Cover crop cultivation increased labile C in the 0.00-0.10 m layer, which can enhance soil microbial activity and nutrient absorption by the citrus trees. The fractions LF and F1 may be suitable indicators for monitoring changes in soil organic matter content due to changes in soil management practices.

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Section: Soil Light Fractionsupporting

confidence: 94%

Changes in Soil Organic Carbon Fractions in Response to Cover Crops in an Orange Orchard

Oliveira

Xavier

2016

Rev. Bras. Ciênc. Solo

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“…Carbon heavy fraction represented highest fraction in soil and corresponded to 82% of total organic carbon (TOC) at depth of 0-20 cm and arable land site tended to present the lowest value of heavy fraction carbon (HFC) at 0-10 cm depth (7.2 Mg ha -1 ) as compared to silvopasture system (Matos et al, 2011). Wu et al, (2003) revealed that lower amount of HFC (7.8 Mg ha -1 ) in 0-10 cm layer of continuous cultivated soil as compared to soil which is under pasture from more than 10 years after 70 years of arable cultivation.…”

Section: -65mentioning

confidence: 99%

Effect of Cultivation on Organic Carbon Pools and Nutrient Availability in Soil under Different Land Use System: A Review

Kaushik¹,

Raj²,

Rani³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…Traditionally, extensive livestock production was based in local available feed resources such as crop residues and rough vegetation that had no value as human food. The conversion of pastures to arable crops caused changes in soil C distribution due to soil aggregation disturbance and changes in crop residue inputs and decomposability, thus resulting in C losses (Matos et al 2011;Su 2007). A study conducted in 27 European soils quantified C losses when grasslands were converted to croplands (i.e., a loss of 19 ±7 Mg C ha −1 ), and an accumulation of 18± 7 Mg C ha −1 when cropland was converted to grassland (Poeplau and Don 2013).…”

Section: Livestock Integration Into Dryland Farming Systemsmentioning

confidence: 99%

Carbon management in dryland agricultural systems. A review

Plaza‐Bonilla¹,

Arrúe

Cantero‐Martínez

et al. 2015

Agron. Sustain. Dev.

128

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Carbon, nitrogen and organic C fractions in topsoil affected by conversion from silvopastoral to different land use systems

Cited by 31 publications

References 30 publications

Changes in Soil Organic Carbon Fractions in Response to Cover Crops in an Orange Orchard

Changes in Soil Organic Carbon Fractions in Response to Cover Crops in an Orange Orchard

Effect of Cultivation on Organic Carbon Pools and Nutrient Availability in Soil under Different Land Use System: A Review

Carbon management in dryland agricultural systems. A review

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