Banca de QUALIFICAÇÃO: BRUNA MARRACCINI PRECIOSO DE OLIVEIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : BRUNA MARRACCINI PRECIOSO DE OLIVEIRA
DATE: 11/12/2020
TIME: 09:00
LOCAL: Qualificação via plataforma RNP
TITLE:

DIVERSIFICATION OF THE AGRICULTURAL LANDSCAPE AS A STRATEGY FOR MAINTENANCE OF CARBON IN THE SOIL

KEY WORDS:

landscape diversification; soil carbon; biogenic aggregates.

PAGES: 18
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Manejo e Conservação do Solo
SUMMARY:

The impacts of climate change compromise the environmental balance and ecosystem services associated with agricultural sustainability, damaging the socioeconomic stability of farmers and global food security. The preservation of carbon in soils depends on factors that include diversification practices of agroecosystems aiming at increasing the levels of organic matter and biodiversity in the agroecosystem. Organic matter feeds ecosystem engineers and soil microbiota, which in turn act in the cycling and supply of nutrients, as well as in the formation of aggregates that promote carbon stabilization in the soil. The objective of this work is to evaluate the effects of landscape diversification strategies - presence of hedges and spontaneous borders - on soil quality and efficiency in sequestering and maintaining soil carbon and the potential spillover effect for cultivation systems, through the supply of organic matter and microclimate to earthworms, which are essential agents in these processes. For this purpose, soil samples will be collected at different distances organized in a diagonal transect from hedges or spontaneous plant borders entering crops. The proportion of different types of aggregates and their stability, the total organic carbon content and the community and functional diversity of earthworms will be assessed. As a result, it is expected to increase the biomass of earthworms, the amount of biogenic aggregates, the carbon content sequestered in the soil and the biodiversity in the agroecosystems of the São José da Boa Morte Settlement, Cachoeiras de Macacu- RJ.

BANKING MEMBERS:
Presidente - 465.566.305-78 - MARIELLA CAMARDELLI UZÊDA - EMBRAPA
Externo à Instituição - LUIZ FERNANDO DUARTE DE MORAES
Externa à Instituição - MARIA ELIZABETH FERNANDES CORREIA