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Abstract
The purpose of this paper is to identify and characterize
forestry and socio-economic systems of tidal river floodplain utilization
in agroforestry production units (UPA). Forest inventory techniques,
budget sheets and questionnaires were utilized. The results obtained
express an average floristic composition of 2,920.7 plants/ha, with a
breast-high circumference (CHC)≥10cm, the highest frequency being
for açaí (Euterpe oleracea) (50.63%), cocoa (Theobroma cacau)
(31.02%) and virola (Virola surinamensis) (6.76%). The system
comprises timber and non-timber forest exploitation, fishing, and
poultry and swine raising. The annual cost of the agroforestry system
(SAF) is R$1,866.25/UPA and annual gross income is R$2,959.08/
UPA. It was concluded that the system is an agro-silvi-pastoral one,
where poultry and swine raising utilizes floodplain shellfish as feed
source; in principle, the technology used is favorable to the ecosystem
conservation; however, there is a need for improving the quality of
family labor. The SAF annual gross income demonstrates the economic
feasibility of the UPAs at a minimum wage level; however, such units
are multi-functional and have multiple incomes whose non-agricultural
earnings are fundamental to families persevering in this activity and
staying in the rural environment.