| Full text | |
| Author(s): |
do Nascimento, Alexandre Ferreira
[1]
;
Correia Furquim, Sheila Aparecida
[2]
;
Couto, Eduardo Guimaraes
[3]
;
Beirigo, Raphael Moreira
[4]
;
de Oliveira Junior, Jairo Calderari
[4]
;
de Camargo, Plinio Barbosa
[5]
;
Vidal-Torrado, Pablo
[4]
Total Authors: 7
|
| Affiliation: | [1] UEP Recife, Embrapa Solos, BR-51020240 Recife, PE - Brazil
[2] Univ Fed Sao Paulo, UNIFESP, BR-09913030 Diadema, SP - Brazil
[3] Univ Fed Mato Grosso, BR-78060900 Cuiaba, MT - Brazil
[4] ESALQ USP, BR-13416900 Piracicaba, SP - Brazil
[5] Univ Sao Paulo, CENA USP, BR-13416903 Piracicaba, SP - Brazil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Revista Brasileira de Ciência do Solo; v. 37, n. 5, p. 1113-1127, SEP-OCT 2013. |
| Web of Science Citations: | 10 |
| Abstract | |
The Pantanal region can be characterized as a quaternary floodplain with predominant sedimentation in the form of alluvial fans. In the geomorphologic and sedimentary evolution, the avulsion process is inherent to this depositional system and its dynamics, together with surface water floods, influence soil sedimentation on this plain. The knowledge and differentiation of these two events can contribute to a better understanding of the variability of soil properties and distribution under the influence of these sedimentation processes. Therefore, this study investigated the genesis of soils in the Northern Pantanal with textural contrasts in deeper horizons and their relationship with the depositional system dynamics. We analyzed four soil profiles in the region of Barão de Melgaço, Mato Grosso State, Brazil (RPPN SESC Pantanal). Two profiles were sampled near the Rio Cuiabá (AP1 and AP4) and two near the Rio São Lourenço (AP10 and AP11). In AP11, the horizons contrast in particle size between the profile basis and the surface. In AP1, AP4 and AP10, the horizons overlaying the sand layer have similar particle size properties, mainly in terms of sand distribution. In the first case, floods (surface water) seem to have originated the horizons and layers with contrasting texture. In the second case, avulsion is the most pronounced process. Therefore, the two modes can form soils with contrasting texture that are discriminable by soil morphology, based on the distinct features associated to the specific sedimentation processes. (AU) | |
| FAPESP's process: | 11/11905-9 - Spatial characterization and genesis of sodic soil in the region of Barão do Melgaço, Pantanal Mato-Grossense |
| Grantee: | Jairo Calderari de Oliveira Junior |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 09/54372-0 - Soils of northern Pantanal: distribution, characterization, genesis, and current functioning |
| Grantee: | Pablo Vidal Torrado |
| Support Opportunities: | Regular Research Grants |