1997
DOI: 10.5380/raega.v1i0.17921
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Os microdesertos edáficos na neopaisagem da Região Noroeste do Estado do Paraná – Brasil, como registro de um novo período geológico (Quinário?)

Abstract: A região noroeste do Estado do Paraná, no sul do Brasil, foi palco de grandes transformações devido à retirada da cobertura florestal e intensa ocupação agrícola a partir do final da década de 40. Esta atuação humana acelerou processos que passaram a modificar a paisagem existente, determinando condições de desequilíbrio ambiental. Distinguem-se processos relativos à pré-desertificação, na área relativa à cobertura sedimentar arenosa, sob a forma de microdesertos edáficos. Estas condições, por sua vez, induzem… Show more

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“…The researchers França Junior (2010) and França Junior and Souza (2014) point out that the sedimentation of soils originating from slopes occurred, that is, edaphic sediments mentioned by Muratori (1997) that were transported to the valley bottoms through accelerated erosion pulses. Alluvial sediment layers with distinct technogenic deposits were formed in the alluvial plains of the Pinhalzinho II stream in Umuarama-PR (Northwest Paraná state).…”
Section: A Alluvial / Colluvial Deposition and Accelerated Erosionmentioning
confidence: 99%
“…The researchers França Junior (2010) and França Junior and Souza (2014) point out that the sedimentation of soils originating from slopes occurred, that is, edaphic sediments mentioned by Muratori (1997) that were transported to the valley bottoms through accelerated erosion pulses. Alluvial sediment layers with distinct technogenic deposits were formed in the alluvial plains of the Pinhalzinho II stream in Umuarama-PR (Northwest Paraná state).…”
Section: A Alluvial / Colluvial Deposition and Accelerated Erosionmentioning
confidence: 99%