Banca de DEFESA: ELLEN GLEYCE DA SILVA LIMA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ELLEN GLEYCE DA SILVA LIMA
DATA : 30/08/2019
HORA: 14:00
LOCAL: ICA/FLORESTA SALA 1
TÍTULO:

1. SUSTAINABILITY OF FAMILY AGROECOSYSTEMS IN PRODUCTIVE TRANSITION WITH AGROFORESTRY SYSTEM IN MARAPANIM AND IGARAPÉ AÇU, PARÁ.

PALAVRAS-CHAVES:

Agroforestry systems, Geotechnologies, Family farming, Management, Environmental education, Shifting agriculture.

PÁGINAS: 50
GRANDE ÁREA: Ciências Agrárias
ÁREA: Recursos Florestais e Engenharia Florestal
RESUMO:

1. With the advancement of agricultural technologies, it is still quite common among farmers to practice slash and burn agriculture or shifting agriculture. This is the main subsistence component of family farmers, which is defined by the removal of the forest for agricultural purposes, a form of land use also known as felling and burning. The theme since this work originates from a set of reflections carried out in 1995 where studies for development and alternatives for the preparation of the area without the use of fire on family farmers' properties began. This thesis aimed to evaluate the sustainability of agroecosystems composed by SAFs as alternatives to the conventional production method (felling and burning) aiming at the sustainable use of natural resources in two communities of Northeast Paraense. The work was developed under the Tipitamba project, consisting of farmers belonging to the project in two communities, Novo Brasil, belonging to the municipality of Igarapé Açu and São João, belonging to the municipality of Marapanim. For qualitative analysis, a characterization form was applied, using indicators in family agroecosystems in a participatory manner. Information on the agroecosystem was collected, as well as its production unit and the technical aspects involved, to point out the state of sustainability of the farmers. sampled agroecosystems. For the quantitative data of the collected information, there was a systematization, using the Microsoft Office Excel 2007 tool. It was made the aerial photogrammetric survey of the area of each previously chosen property, using a small multirrotor drone associated with a mobile device. Then the images were classified by land use. At this stage, data were also acquired from INPE's digital database, such as the focus points of each focus, product of the AQUA_M-T satellite, from 2000, 2005, 2010, 2015 and 2019. All in shapefile format and imported to GIS environment using the program Qgis 3.4.9 (free version for students), with Coordinate Reference System defined in SIRGAS2000, later employed GIS techniques to create a density surface using the Kernel estimator. For qualitative analysis the results are presented in an amoeba chart, allowing the comparison of the set of indicators between the systems and the analysis of the sustainability level of each property. Although this method does not address in depth some economic and social aspects, there was a clear sustainability of the current model of agriculture + agroforestry adopted by the farmers participating in the project. The results for land use classification area showed the heterogeneity of each property, with a percentage above 50% of legal reserve area. The properties increased diversification with positive actions that indicate sustainability in the properties and it was possible to diagnose that there are situations where it is possible and there is a sustainable agricultural system being practiced. conclude that all farmers interviewed have a high level of environmental perception. This perception is intrinsic to the agroecological activities developed in its production units, which in turn express a harmonious relationship with the environment. Heat occurrences were not detected near the properties, even during the El Ñino period, proving the effectiveness of the project during these 19 years of searching for alternative land use. Thus, it is believed that the work can provide farmers with a mapping of the current situation of their plots and provided them with relevant data for planning the management of production systems aiming at their sustainability.

MEMBROS DA BANCA:
Externo ao Programa - 1646423 - CYNTIA MEIRELES MARTINS
Externo à Instituição - CÉLIA MARIA BRAGA CALANDRINI DE AZEVEDO - EMBRAPA
Externo à Instituição - DÉBORA VEIGA DE ARAGÃO - EMBRAPA
Externo ao Programa - 2223320 - MERILENE DO SOCORRO SILVA COSTA
Presidente - 094.373.632-34 - OSVALDO RYOHEI KATO - UFRA