Técnicas de otimização aplicadas na colheita de floresta ombrófila densa de terra firme não explorada na Amazônia Oriental

Abstract

Operational research is one of the tools used in the planning of the different phases of forest exploitation. However, its application is still incipient in the exploitation of natural forests, and its use is more widespread in the planning of planted forests. Given the current scenario of management in natural forest areas, the present work aimed to define an optimization model using linear target programming to assist in the planning of timber exploitation in a dense ombrophilous forest management unit (UM) firm. The model used was processed on Solver IBM ILOG CPLEX 12.6. The data came from 4,660 trees with DBH ≥ 50 cm from 56 commercial tree species distributed in 9 work units of different areas, totaling 490 hectares. The results showed different solutions for the analyzed scenarios, only one work unit presented higher revenue than the extraction costs (drag and cut) for scenarios I, II and III. The linear goal programming model proved to be efficient in determining cutoff volumes for different scenarios.