Banca de QUALIFICAÇÃO: RONALTON RAMOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RONALTON RAMOS
DATA : 24/05/2024
HORA: 13:30
LOCAL: Ambiente virtual
TÍTULO:

CARBON STOCK IN SOILS UNDER PASTURES IN DIFFERENT MANAGEMENT CONDITIONS IN THE NORTHWEST REGION OF MATO GROSSO

PALAVRAS-CHAVES:

Amazon; degraded pastures; soil organic matter

PÁGINAS: 67
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Ciência do Solo
ESPECIALIDADE: Fertilidade do Solo e Adubação
RESUMO:

Anthropogenic changes to the landscape lead to constant modifications in the natural cycles of planet Earth, including the carbon cycle, an essential element for life forms and an important agent of climate change in the atmosphere on a global scale. To mitigate the impact of carbon, well-managed and productive agroecosystems can act as important agents in combating climate change through the storage of carbon in the soil. Therefore, the objective of this work is to evaluate the physical characteristics of the soil under different management conditions in the Northwest region of Mato Grosso. Four land uses were evaluated in the town of Juína – Mato Grosso, reformed pasture (PR), degraded pasture (PD), crops (LA) and native forest (FL) as reference, with sampling in layers 0-10, 10-20, 20-30, 30-40, 40-60 and 60-100 cm in a Red-Yellow Latosol, with six replications for each area, with sample collections to determine the C content through chemical analysis, density, soil porosity, soil organic carbon (TOC) and carbon stock, taking as a reference the carbon present in the native forest. The data were subjected to multivariate statistical analysis. The results demonstrated similarity between the uses of crops and reformed pasture with greater microporosity and lower soil macroporosity resulting from management, with the forest presenting better indicators for the physical components evaluated. For chemical components, the forest and degraded pasture are similar with a lower concentration of nutrients and greater presence of Al³⁺ and Fe, the areas managed with crops and renovated pasture presented higher nutritional concentrations and lower acidity. The concentration of organic matter found was highest in the cropland and native forest area and the lowest in pastures, indicating the influence of soil management on the concentration of the evaluated components

MEMBROS DA BANCA:
Interno - 210865003 - GUSTAVO CAIONE
Interno - 117000004 - MARCO ANTONIO CAMILLO DE CARVALHO
Externo ao Programa - 277813001 - TIAGO DE LISBOA PARENTE