Impact of pasture, agriculture and crop-livestock systems on soil C stocks in Brazil

Carvalho, João Luís Nunes; Raucci, Guilherme Silva; Cerri, Carlos Eduardo Pellegrino; Bernoux, Martial; Feigl, Brigitte Josefine; Wruck, F. J.

doi:10.1016/j.still.2010.07.011

Cited by 160 publications

(134 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is a strong relationship between yield and the root system. Both of these scenarios are in agreement with the hypothesis reported by Carvalho et al (2010) that palisade has a deep root system and adds biomass-C to the surface layers.…”

Section: Multivariate Analysessupporting

confidence: 92%

“…Reduction in SOC pool in the present study by 23 % (3.95 Mg ha -1 ) and 15 % (2.62 Mg ha -1 ) for CLF and the CL, respectively, compared to NV are more than the values reported for an Oxisol in central Brazil by Zinn et al (2005). However, the SOC pool of 13.63 and 14.96 Mg ha -1 at the 0-10 cm depth for CLF and CL, respectively, are similar to those reported for degraded pasture by Carvalho et al (2010). Furthermore, the SOC pool under the crop-livestock system increased over time.…”

Section: Soil Organic Carbon Concentration and Poolsupporting

confidence: 62%

“…Similar or higher WSA in the 4.76-8.00 mm size class for treatments involving palisade compared to NV indicated the importance of grass in enhancing soil aggregation (Carvalho et al, 2010). Inda Júnior et al (2007 reported that grasses can have an important function in formation of large aggregates by cementing together of micro aggregates.…”

Section: Soil Physical Propertiesmentioning

confidence: 95%

“…Experiments carried out in some soils of the Brazilian Cerrado show that the use of an integrated crop-livestock (Carvalho et al, 2010) or eucalypt (Eucalyptus urograndis) forest (Zinn et al, 2011) system may enhance soil organic carbon (SOC) concentration. Lal (2004) reported that integration of crop, livestock and forest (agroforestry) systems can accentuate SOC sequestration.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Physical quality of an Oxisol under an integrated crop-livestock-forest system in the Brazilian Cerrado

Neto

Andrioli

Almeida

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYSoil physical quality is an important factor for the sustainability of agricultural systems. Thus, the aim of this study was to evaluate soil physical properties and soil organic carbon in a Typic Acrudox under an integrated crop-livestock-forest system. The experiment was carried out in Mato Grosso do Sul, Brazil. Treatments consisted of seven systems: integrated crop-livestock-forest, with 357 trees ha -1 and pasture height of 30 cm ); integrated crop-livestock-forest with 357 trees ha -1 and pasture height of 45 cm ); integrated crop-livestockforest with 227 trees ha -1 and pasture height of 30 cm ); integrated croplivestock-forest with 227 trees ha -1 and pasture height of 45 cm ); integrated crop-livestock with pasture height of 30 cm (CL 30 ); integrated croplivestock with pasture height of 45 cm (CL 45 ) and native vegetation (NV). Soil properties were evaluated for the depths of 0-10 and 10-20 cm. All grazing treatments increased bulk density (ρ ρ ρ ρ ρ b ) and penetration resistance (PR), and decreased total porosity (ƒ t ) and macroporosity (ƒ ma ), compared to NV. The values of ρ ρ ρ ρ ρ b (1.18-1.47 Mg m -3 ), ƒ ma (0.14-0.17 m 3 m -3 ) and PR (0.62-0.81 MPa) at the 0-10 cm depth were not restrictive to plant growth. The change in land use from NV to CL or CLF decreased soil organic carbon (SOC) and the soil organic carbon pool (SOC pool ). All grazing treatments had a similar SOC pool at the 0-10 cm depth and were lower than that for NV (17.58 Mg ha -1 ).Index terms: agroforestry, soil organic carbon, multivariate analysis. A qualidade física do solo é um importante fator para a sustentabilidade dos sistemas agrícolas. O objetivo desta pesquisa foi avaliar as propriedades físicas do solo e o carbono orgânico em um Latossolo Vermelho distrófico, sob sistema de integração lavoura-pecuária-floresta. O experimento foi conduzido no Mato Grosso do Sul, Brasil. Os tratamentos consistiram de sete sistemas: integração lavoura-pecuária-floresta, com 357 árvores ha -1 e altura de pastejo de 30 cm ); integração lavoura-pecuária-floresta, com 357 árvores ha -1 e altura do pastejo de 45 cm (CLF 357-45 ); integração lavoura-pecuária-floresta, com 227 árvores ha -1 e altura do pastejo de 30 cm ); integração lavoura-pecuária-floresta, com 227 árvores ha -1 e altura do pastejo de 45 cm ); integração lavourapecuária, com a altura do pastejo de 30 cm (CL 30 ); integração lavoura-pecuária, com a altura do pastejo de 45 cm (CL 45 ); e vegetação nativa (NV). As propriedades do solo foram avaliadas nas profundidades de 0-10 e 10-20 cm. Todos os tratamentos com pastagem aumentaram a densidade do solo (ρ b ) e resistência à penetração (RP) e diminuíram a porosidade total (ƒ t ) e macroporosidade (ƒ ma ), em comparação com a NV. Os valores de ρ b (1,18-1,47 Mg m -3 ), ƒ ma (0,14-0,17 m 3 m -3 ) e PR (0,62-0,81 MPa) na profundidade de 0-10 cm não foram restritivos ao crescimento de plantas. A mudança de uso do solo a partir NV para CL ou CLF diminuiu o carbono orgânico (SOC) e o estoque de carbono orgânico (SOC...

show abstract

Section: Multivariate Analysessupporting

confidence: 92%

Section: Soil Organic Carbon Concentration and Poolsupporting

confidence: 62%

Section: Soil Physical Propertiesmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physical quality of an Oxisol under an integrated crop-livestock-forest system in the Brazilian Cerrado

Neto

Andrioli

Almeida

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…Land use or management practices may change the soil organic matter (SOM) content and quality, affecting the stocks of SOM and causing changes in the levels of major SOM elements, such as C and/or N (Liu et al, 2006;Carvalho et al, 2010). The replacement of natural vegetation cover by agricultural crops and pastures, associated to the use of inadequate management practices, may cause a significant reduction in SOM stocks, leading to considerable losses of soil C and N (Guo and Gifford, 2002;Machado, 2005;Batlle-Bayer et al, 2010;Wendling et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Soil Organic Matter Fractions in Preserved and Disturbed Wetlands of the Cerrado Biome

Sousa

Brasil

Figueiredo

et al. 2015

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

Veredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent to preserved (native savanna) and disturbed environments (agricultural areas and pastures) in the Cerrado biome. Soil samples were collected from the 0-10 and 10-20 cm layers along reference lines drawn along the relief following the upper, middle and lower positions of one of the slopes, in the direction of the draining line of the vereda. The soil analysis determined: total soil OC, total nitrogen and C:N ratio; C and N contents and C:N ratio in particulate and mineral-associated fractions (of SOM); fulvic acids, humic acids and humin fractions and ratio between humic and fulvic acids. The agricultural use around the veredas induced changes in the SOM fractions, more pronounced in the lower part of the slope. In the soil surface of this part, the OC levels in the humic substances and the particulate fraction of SOM, as well as total soil OC were reduced in the vereda next to crop fields. Keywords

show abstract

Soil Carbon Dynamics in Soybean Cropland and Forests in Mato Grosso, Brazil

et al. 2018

View full text Add to dashboard Cite

Climate and land use models predict that tropical deforestation and conversion to cropland will produce a large flux of soil carbon (C) to the atmosphere from accelerated decomposition of soil organic matter (SOM). However, the C flux from the deep tropical soils on which most intensive crop agriculture is now expanding remains poorly constrained. To quantify the effect of intensive agriculture on tropical soil C, we compared C stocks, radiocarbon, and stable C isotopes to 2 m depth from forests and soybean cropland created from former pasture in Mato Grosso, Brazil. We hypothesized that soil disturbance, higher soil temperatures (+2°C), and lower OM inputs from soybeans would increase soil C turnover and deplete C stocks relative to nearby forest soils. However, we found reduced C concentrations and stocks only in surface soils (0–10 cm) of soybean cropland compared with forests, and these differences could be explained by soil mixing during plowing. The amount and Δ 14 C of respired CO 2 to 50 cm depth were significantly lower from soybean soils, yet CO 2 production at 2 m deep was low in both forest and soybean soils. Mean surface soil δ 13 C decreased by 0.5‰ between 2009 and 2013 in soybean cropland, suggesting low OM inputs from soybeans. Together these findings suggest the following: (1) soil C is relatively resistant to changes in land use and (2) conversion to cropland caused a small, measurable reduction in the fast‐cycling C pool through reduced OM inputs, mobilization of older C from soil mixing, and/or destabilization of SOM in surface soils.

show abstract

Impact of pasture, agriculture and crop-livestock systems on soil C stocks in Brazil

Cited by 160 publications

References 49 publications

Physical quality of an Oxisol under an integrated crop-livestock-forest system in the Brazilian Cerrado

Physical quality of an Oxisol under an integrated crop-livestock-forest system in the Brazilian Cerrado

Soil Organic Matter Fractions in Preserved and Disturbed Wetlands of the Cerrado Biome

Soil Carbon Dynamics in Soybean Cropland and Forests in Mato Grosso, Brazil

Contact Info

Product

Resources

About