Macrophytes communities associated to soil bioengineering techniques for erosion control in riverbanks

Abstract

The objective of this study was to evaluate the temporal and spatial richness of aquatic macrophyte settlement in a right bank of the São Francisco river, northeastern Brazil. The botanical material was collected and assembled exsiccate from April 2014 to September 2015, totaling four samplings at the points identified as: Vegetated Slope (A); Vegetated Riprap (B); Eroded Slope (C), Cribwall (D); Vetiver Grass Contour Line (E). It was identified 66 species distributed in 23 families. The Vegetated Slope in the rainfall period presented higher species richness and diversity. The soil bioengineering techniques at points B, D and E presented a stable river bank, thus creating a favorable environment for a larger settlement of macrophytes.

Relationship Between Physical and Chemical Properties of Entisols-Fluvents and Erosion in the São Francisco River

“…Hydrological regime control causes changes in the rise and stream velocity of watercourses, intensifying and accelerating erosion process (SANTOS et al, 2020a). Although expected, these changes interfere with the natural dynamics of the river, which may be resumed by adjusting the morphology of its channel (ROCHA et al, 2020).…”