Banca de QUALIFICAÇÃO: BIANCA LOBATO OLIVEIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : BIANCA LOBATO OLIVEIRA
DATE: 20/12/2023
TIME: 09:00
LOCAL: Virtual
TITLE:

LEAF ARCHITECTURE AS A TOOL FOR SPECIES RECOGNITION IN AREAS UNDER FOREST MANAGEMENT

KEY WORDS:

botanical identification; leaf morphology, forest inventory

PAGES: 31
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Silvicultura
SPECIALTY: Dendrologia
SUMMARY:

Correctly recognizing species in forest inventories is essential to comply with the basic premises of sustainable forest management, thus guaranteeing the integrity of commercial timber transitions by species. Among the botanical techniques available, leaf architecture presents itself as an effective alternative for discriminating tree species through the arrangement of veins and other leaf structures. Wood production in areas with forest management has the correct identification of species as a major challenge that has strongly affected the sustainability of management, as the procedure for associating the correct names with plants has been inefficient. In this context, this study seeks to analyze other techniques that allow improving the naming of trees in the field, minimizing identification errors, and contributing to minimizing errors in the botanical identification of species in forest management projects, and ensuring the sustainability of the activity and the guarantee of a homogeneous product for the wood market. Thus, trees selected for wood harvesting in a forest management area located in the forest management unit of the Paru State Forest, in the municipality of Monte Alegre, Pará were selected to collect leaf samples and analyze leaf architecture as a technique to bring improvements to this procedure. Botanical samples were collected from trees associated with 13 common names, with samples from five (5) trees for each name. Three (3) branches in good sanitary conditions were collected from each tree, which were dehydrated and taken for identification in the herbarium at the species level and, subsequently, preparation of exsiccates. From each branch, 5 leaves were obtained, which were stored between sheets of paper for dehydration and were later digitalized and analyzed for leaf characteristics according to specialized literature. The description of leaf architecture patterns covered the parameters of phyllotaxis type, leaf type, leaf blade shape, leaf blade symmetry, shape of the base and apex, type of margin. Subsequently, an absence/presence matrix will be created with the characteristics to compare the species according to cluster analyses. In a later stage, the samples will be diaphanized and mounted on glass slides to describe the venation patterns and present in an illustrative way (guide) the important morphological structures to be observed to recognize the species and those that are shared between species that can lead to identification errors.

BANKING MEMBERS:
Presidente - 2366025 - GRACIALDA COSTA FERREIRA
Interna - 1550131 - MARCELA GOMES DA SILVA
Externo ao Programa - 2934609 - EDUARDO DA SILVA LEAL
Externa à Instituição - JULIANA LIVIAN LIMA DE ABREU - SEMAS
Externa à Instituição - MARCIA ORIE DE SOUSA HAMADA - UFPA