A eficiência do pinhão-manso (Jatropha curcas L.) na recuperação florestal de áreas degradadas e análise de seu retorno econômico

Abstract

This study aimed to test the efficiency of jatropha (Jatropha curcas L.) in the recovery of degraded environments and analyze their economic return by selling seeds for biodiesel. We compared two treatments and a certification production. The first treatment (T1) was made a hundred and fifty individuals of jatropha, the second treatment (T2) was formed by seventy-five seedlings of jatropha and seventy-five seedlings of native tree species and the certification (T3) was made a hundred and fifty seedlings of native tree species. During the study period of twenty-four months, we recorded survival data, height, diameter and circumference of the crown and they graded. The analysis of the economic return was made by raising revenue (sale of seeds for biodiesel) and costs (installation, maintenance and collection of seeds), calculating the economic profitability during the first twenty-four months. Therefore, we conclude that the use of jatropha in the recovery of degraded environments is highly recommended, and profitable during the first twenty-four months after planting from the sale of seeds for Biodiesel.