Intercropping native tree species of atlantic forest with corn and bean for restoration of riparian forest in northwest region fluminense.

Abstract

Intercropping crops emerge as an alternative to implementation or maintaining recovery Riparian Forest. This study aimed to compare the mixed planting of tree species, with Taungya system on riparian forest revegetation of the Paraiba do Sul River, Northwest Fluminense region, as well as the behavior of the pioneer and non-pioneer species. It was determined yet the intercropping economic impact of the riparian forests restoration in the first nine months after implantation. The treatments were arranged in random blocks with two planting systems in 4 repetitions. The Taungya system consisted of the cultivation of agricultural species between the lines of tree species. We evaluated, height, diameter at the neck, crown diameter, canopy cover, survival rate and intercropping economic impact of the riparian forests recovery. There was no influence of conventional planting system and Taungya on the relative increase in height and diameter at neck height for most evaluated tree species, eight months after planting. The pioneer species have greater canopy area and consequently larger area coverage, compared to late species in both systems. In Taungya system, the revenue from the agricultural production in the first year of experiment deployment represented 13% of the total cost of reforestation project.