Banca de DEFESA: VITOR MATEUS DE CARVALHO MORAIS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : VITOR MATEUS DE CARVALHO MORAIS
DATE: 31/01/2022
TIME: 14:00
LOCAL: Sala virtual no google meet
TITLE:

SAMPLING TECHNIQUES FOR QUANTIFICATION OF NATURAL REGENERATION IN URBAN SECONDARY FORESTS IN THE EASTERN AMAZON

KEY WORDS:

 Urban Forests; Secondary Succession; Forest Inventory; Sample Sufficiency

 

PAGES: 36
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUMMARY:

Urban secondary forests play an important role in the maintenance and conservation of biodiversity in anthropic environments. In this sense, knowing the structure of the natural regeneration of these forests is essential to ensure their continuity over time. This study aimed to verify the ideal sample size to accurately and accurately estimate the horizontal structure of the natural regeneration of tree species in urban forests in the Eastern Amazon. The experiment was carried out in the secondary forest of the Universidade Federal Rural da Amazônia, in the city of Belém, Pará, where an area of 1 ha was delimited and a 100% inventory was carried out, which was considered as a parameter for comparison and evaluation of the estimates, having as Inclusion criterion for measuring the presence of live stem at a height of 1.30 meters in relation to the ground and DBH ≤ 10 cm. Information on diameter at breast height (DBH), geographic coordinates, scientific name and information on the phytosanitary of the individuals were collected. The parameters of the horizontal structure considered were the basal area, the number of individuals, the number of stems, the richness and the Shannon index. In a Geographic Information System – GIS environment, different sizes and shapes of sample units were simulated, with areas ranging from 2 m² to 100 m². For the resampling simulation, the individuals were divided into two diameter classes. Namely: Class 1 (DBH ≤ 5 cm) and Class 2 (5 cm > DAP ≤ 10 cm). The Bootstraping method was used with 1000 repetitions per sample unit size. In total, 4472 stems, 2800 individuals, 83 species and Shannon index (H') = 3.19 were recorded. The results showed that sampling units with an area between 25 m² and 100 m² are more effective in estimating the horizontal structure of natural regeneration.

BANKING MEMBERS:
Interno - 745.945.679-91 - ADEMIR ROBERTO RUSCHEL - EMBRAPA
Presidente - 2411797 - FABIANO EMMERT
Externo à Instituição - FÁBIO MIRANDA LEÃO
Externa ao Programa - 1399943 - SINTIA VALERIO KOHLER