01713nam a2200205 a 450000100080000000500110000800800410001910000140006024501250007426001410019952010290034065000150136965000180138465300120140270000160141470000220143070000210145270000170147370000170149021399482022-02-24       2022    bl uuuu     u00u1 u    #d1 aLEMES, M.  aInfluence of soil cover on pore distribution in a Ferralsol evaluated by 3D computerized microCT.h[electronic resource]  aIn: PEDOMETRICS BRAZIL, 2., 2021, Rio de Janeiro. Annals [...]. Rio de Janeiro: Embrapa Solos, 2022. Não paginado. Evento online.c2022  aIn the search for new techniques aimed at complementing and adding new data on Ferralsols, high resolution computer microtomography (microCT) appears as a nondestructive and fast analytical technique. MicroCT has been outstanding in the international scenarios and it is more and more present in soil analyses. Analyzing a soil sample by microCT allows obtaining knowledge, in microscale, on shape, size, distribution, volume, area and pore connectivity and having a 3D visualization of the soil sample and its structure. The objective of this work is to use microCT to compare the porosity distribution and pore connectivity density between a soil without vegetation cover and a soil with grass cover, both Ferralsols. Four undisturbed samples of each soil were collected. The results show that the MicroCT technique is an efficient and non-destructive tool for the analysis and characterization of the pore structure of soils protected from and degraded by erosion, underlining clear differences between them, as expected.  aFerralsols  aSoil analysis  aMicroCT1 aMACHADO, A.1 aVASQUES, G. de M.1 aRODRIGUES, H. M.1 aLOPES, R. T.1 aROSAS, R. O.