Banca de QUALIFICAÇÃO: JOÃO MATHEUS VIEIRA SALES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JOÃO MATHEUS VIEIRA SALES
DATE: 27/12/2024
TIME: 10:00
LOCAL: On-line
TITLE:
EFFECTS OF INTENSIFICATION OF AÇAÍ MANAGEMENT ON THE PHYSICAL, CHEMICAL AND BIOLOGICAL PROPERTIES OF THE SOIL IN THE AMAZON ESTUARY

KEY WORDS:
floodplain forests; hydromorphic soils; NTFP; biodiversity.

PAGES: 27
BIG AREA: Ciências Biológicas
AREA: Botânica
SUMMARY:
Tropical forests are key elements for global biodiversity conservation and the provision of ecosystem
services of both local and global significance. Brazil stands as one of the world's largest biodiversity
hotspots, with the Amazon biome contributing almost entirely to this status. However, various threats are
challenging the roles played by tropical forests, including droughts, wildfires, selective logging, pasture
conversion, and the extraction of non-timber forest products. Floodplain forests in the Amazon estuary
constitute one of the largest river systems in the world, playing a crucial role in maintaining the
biodiversity of these ecosystems. Approximately one-sixth of the tree diversity depends on the Amazon
estuary, which is home to endemic and specialized species adapted to flooded environments, essential
for regulating and sustaining many biological processes in the region. Among the numerous species found
in these estuarine forests, the açaí palm (Euterpe oleracea Mart.), belonging to the Arecaceae family,
stands out. Over the past decades, it has gained prominence in both national and international markets
due to the versatility of its pulp-derived products. With the increasing consumer demand for açaí fruit, 
the intensification of açaí cultivation has become a threat to plant communities in the Amazon estuary.
Studies indicate that intensive management of açaí palms leads to the simplification and homogenization
of estuarine forests. Despite the growing popularity of açaí fruit in national and international markets,
supported by numerous technological advancements, little is known about the effects of intensified açaí
management on soil properties in floodplain forests. In this context, this study aims to investigate the
effects of intensified açaí cultivation on the physical, chemical, and biological properties of soils in the
Amazon estuary. The research will be conducted in 105 plots distributed across the Amazon estuary in
the state of Pará, Brazil. These plots are located in five municipalities, including the Metropolitan Region
of Belém (RMB): Abaetetuba, Acará, Barcarena, Ponta de Pedras (Marajó Island), Ilha do Combu, Ilha
Grande, and the Wildlife Refuge (REVIS). The latter three are part of the RMB. Data will undergo
statistical analysis using R software to evaluate the effects of intensified açaí management (açaí
clumps/ha) on soil granulometric properties (fractions of sand, silt, and clay), as well as changes in soil
fertility attributes as açaí management intensifies in the estuary. Additionally, the study will assess the
impacts on soil microbial assemblages. Relationships will be established between soil attributes, the
density of açaí clumps per hectare, and the structural attributes of the aboveground plant community.
This study seeks to explore and understand how intensified açaí management affects soil properties in
the Amazon estuary and how this impacts estuarine forests and their ecosystem services. It aims to
generate robust knowledge and data on açaí palm management in the estuary to support public policies
for sustainable management and biodiversity conservation in floodplain ecosystems.

COMMITTEE MEMBERS:
Externa à Instituição - ERIKA BUSCARDO - UNICAMP
Externa à Instituição - ALICE BATISTA DOS SANTOS - UFPE
Presidente - ***.330.242-** - IMA CÉLIA GUIMARÃES VIEIRA - MPEG
Externo ao Programa - 1552048 - NORBERTO CORNEJO NORONHA - null
Notícia cadastrada em: 12/12/2024 09:57
SIGAA | Superintendência de Tecnologia da Informação e Comunicação - (91) 3210-5208 | Copyright © 2006-2025 - UFRN - sigaa2.sigaa2