This research project deals withthe processes of local knowledge, seedlings and seeds exchange among family farmers and the influences of these processes on the advancement of Agroforestry Systems (SAFs) and local agrobiodiversity. The project aims to analyze the dynamics local knowledge, seedling and seed exchange among farmers who have SAFs in Itabocal (Irituia-PA) region and their influences on local agrobiodiversity. Data collection was based on field research, in which an exploratory study of the area was carried out and visits were made to family farmers; at this time semi-structured interviews and/or a semi-open-ended questionnaires were conducted and accompanied by a guided tour. Afterwards, a sketch of the study area was presented to the farmers for them to indicate exchange relationships. Research results are described in three topics: the first deals with SAFs and the dynamics of seed and/or seedling exchange, describing the process of the advance of SAFs in the region and the role of the D'Irituia cooperative in this process. In relation to the exchange of seedlings and/or seeds, research showed that there is an intense flow of these materials between farmers and also outside the region at the municipal level, occurring during farmers' fairs, when they visit neighbors or family members, and during meetings or gatherings of cooperative farmers. The second topic deals with local knowledge, exchange and its relationship with technical-scientific knowledge, revealing that local knowledge is formed by the accumulation of cultural experiences, specifically with years of work and learning from older subjects combined with technical-scientific knowledge obtained from institutions. Therefore, the exchange of knowledge occurs both between farmers and between technicians or researchers through orality, being important to understand solidarity and reciprocity as bases for improving planting and production. The third topic deals with local agro-biodiversity from the formation of SAFs, revealing a diversity of 81 (eighty-one) species distributed in 45 (forty-five) botanical families, 59.8% for food use and 24.4% for wood use. In this sense, the processes knowledge seedling and seed exchange are fundamental for the advance of the SAFs in the region and have contributed significantly to the maintenance and management of local agrobiodiversity.
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