Banca de QUALIFICAÇÃO: RAYANA GONDIN DA SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RAYANA GONDIN DA SILVA
DATA : 04/04/2019
HORA: 15:00
LOCAL: sala 103 - Campus Amazônia
TÍTULO:

SILVICULTURAL PERFORMANCE OF Bertholletia excelsa Bonpl. IN DEGRADED AREA WITH DIFFERENT TREATMENTS OF PREPARATION AND FERTILIZATION

PALAVRAS-CHAVES:

Degraded areas, Brazil nut tree, Restoration, Growth, Survival, Canaã dos Carajás

PÁGINAS: 44
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The recovery of degraded areas (RDA) is closely linked to the science of ecological restoration.
In the Amazon, mining is identified as one of the activities that threaten the conservation of
biodiversity. However, due to the demand for large tracts of land for the development of
agribusiness, pastures is considered to be the main driver of deforestation, thus threatening the
Amazon forests, the traditional communities that live there and its multiple ecosystem services.
The Brazil nut tree is a tree species of great socio-environmental importance in the Amazon
region. This species is characterized by good growth at sunlights, high resistance to disturbance
and intermediate periods of drought, being suitable for use in RDA. In order to address legal
issues established in environmental constraints related to Plant Suppression Authorizations
(PSA) for mineralogical activities, Brazil nut tree (Bertholletia excelsa Bonpl) was chosen as
the main species to be used in the forest restoration program established by Chico Mendes
Institute for Biodiversity Conservation (ICMBio) in the Canaã dos Carajás (Pará State, Brazil).
The aim of this project is evaluate the survival and performance of B. excelsa seedlings planted
in degraded areas with different soil preparation and adubation. For this, four sample units of
1ha per treatment were installed, with planting of B. excelsa under spacing of 12x12 m. The
seedlings were> 2 years of age, 60.95 cm of mean height and 4.55 mm of mean diameter. Along
two years, will collect dendrometric data (Diameter at Soil Height - DSH, total height, number
of leaves) and survival of the seedlings every tree months. Soil samples were collected and sent
for analysis to compare the physical and chemical characteristics between the treatments. Also,
we will collect rainfall data by nearest meteorological station of plantation. The performance
of seedlings by treatments and seasons will be analysed by tests of comparison of means. We
will use to survival analyses Keplen-Meier to test survival differences between treatments. We
expect that the study and monitoring of these experimental plantations will provide valid
information regarding the appropriate silvicultural management of Brazil nut trees in degraded
areas. We hope that the results will provide alternatives of soil preparation and fertilization of
the seedlings that engender economic benefits (decrease of inputs) and environmental
(substitution of chemical fertilizer by organic fertilizer).

MEMBROS DA BANCA:
Interno - 1794276 - JOSE MAURO SOUSA DE MOURA
Externo ao Programa - 2161642 - RAFAEL RODE
Presidente - 1796322 - RICARDO SCOLES CANO