@article{fdi:010058187,
  title = {{C}arbono em agregados do solo sob vegeta{\c{c}}ão nativa, pastagem e sistemas agrícolas no bioma {C}errado = {C}arbon in soil aggregates under native vegetation, pasture and agricultural systems in the brazilian savannah},
  author = {{C}osta, {C}. and {P}iccolo, {M}. {D}. and {N}eto, {M}. {S}. and de {C}amargo, {P}. {B}. and {C}erri, {C}. {C}. and {B}ernoux, {M}artial},
  editor = {},
  language = {{POR}},
  abstract = {{S}oil organic matter ({SOM}) is responsible for soil fertility, nutrient cycling and structure stability and is closely related with soil aggregation. {H}owever, the relationship between aggregate size classes in the {SOM} dynamics is unclear, resulting in {SOM} accumulation or loss due to soil land use and management. {T}his study aimed to evaluate the amount of carbon ({C}) in soil aggregates under four uses and management: native {C}errado ({CE}-savannah vegetation), no-tillage ({NT}), conventional tillage ({SPC}) and pasture ({PA}). {T}he study areas are located in {R}io {V}erde ({GO}) where the soil was classified as kaolinitic clayey {O}xisol. {T}he soil layers 0-5, 5-10 and 10-20 cm were sampled (n=6) in {F}ebruary 2007, and the amount of water-stable macroaggregates (> 2.0 mm), mesoaggregates (> 0.25 and < 2.00 mm) and microaggregates (> 0.05 and < 0.25 mm) were determined, as well as the mean weight diameter ({MWD}) and mean geometric diameter ({MGD}), and the {C} levels in the soil aggregate classes. {M}acroaggregates were predominant in the soil evaluated, with higher quantities in {CE} and {PA} compared {NT} and {SPC} soils, indicating a negative effect of soil cultivation on macroaggregate conservation. {H}owever, the soil aggregate {C} levels in the 0-20 cm layer were higher in {CE} and {SPD} than in {PA} and {SPC} soils, suggesting that the absence of tillage and maintenance of crop residues on the soil drives {C} accumulation. {T}his shows that macroaggregates and mesoaggregates were more sensitive to soil use and management than microaggregates. {T}he similarities of aggregation in {PA} and {CE} soils, although with lower {C} levels in {PA} suggested different aggregation dynamics, requiring further research.},
  keywords = {soil organic matter ; soil aggregation ; soil use and management},
  booktitle = {},
  journal = {{R}evista {B}rasileira de {C}iencia do {S}olo},
  volume = {36},
  numero = {4},
  pages = {1311--1321},
  ISSN = {0100-0683},
  year = {2012},
  URL = {https://www.documentation.ird.fr/hor/fdi:010058187},
}