Banca de DEFESA: Ana Caroline Amorim de Oliveira

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : Ana Caroline Amorim de Oliveira
DATA : 14/06/2023
HORA: 14:00
LOCAL: PRESENCIAL
TÍTULO:

SOIL FERTILITY IN PELD SITES OF PANTANAL MATO-GROSSENSE

PALAVRAS-CHAVES:

soil fertility; organic matter, wetlands.

PÁGINAS: 31
GRANDE ÁREA: Ciências Biológicas
ÁREA: Biologia Geral
RESUMO:

The Pantanal is one of the largest wetlands in the world, characterized by a rich diversity of fauna and flora and a pedodiversity resulting from hydromorphic pedogenetic processes, directly influenced by the cycle of seasonal flooding and poor drainage. In this context, soil fertility in the region is affected by the contribution of sediments brought by water, litter deposition, and forest fires, among other factors. The aim of this study was to evaluate soil fertility in floodplains in the Pantanal Norte Matogrossense. For this, six islands located in the ecological corridor of the Paraguay River in areas of PELD site, from Cáceres to the vicinity of the Taiamã Ecological Station, were selected between October and November 2021. Composite soil samples were collected from five points on each island of a demarcated area of 1 hectare, at depths of 0-20 and 20-40 cm using a Dutch auger. After drying and sifting through a 2 mm mesh, granulometric analysis, potassium, phosphorus, magnesium, aluminum, calcium, pHH2O, potential acidity (H+Al) and organic carbon (CO) were performed following routine methodologies for soil fertility assessment Base saturation and Al3+ percentages were calculated from the analytical results. According to statistical analyses, no significant differences were found for the variables pH_H2O, potential acidity, potassium, phosphorus, base saturation, magnesium, calcium and potassium and organic carbon (CO), except for the fact that CO presented lower levels in the depth of 20-40cm. The pH_H2O showed values ranging from 5.0 to 5.3, a value considered as average acidity. The soils of the islands showed different classes of textures, including clayey-silty loam, clayey loam and clay. In general, these soils showed good fertility, as indicated by the grades analyzed. Despite being acidic, from an agronomic point of view, there seems to be no significant negative impact on the local vegetation, indicating that it is adapted to these conditions.

MEMBROS DA BANCA:
Presidente - 110049004 - MARIA APARECIDA PEREIRA PIERANGELI
Interno - 84207007 - CAROLINA JOANA DA SILVA
Interno - 48690002 - SOLANGE KIMIE IKEDA CASTRILLON
Externo à Instituição - JUBERTO BABILONIA SOUSA - IFMT