Abstract
Terracing Recovers the Quality of a Riverbank Soil Degraded by Water Erosion in Brazilian Semiarid
Highlights
Soil is a non-renewable resource and its loss may cause serious socioeconomic consequences, such as sedimentation of rivers, loss of soil productivity and desertification (Ochoa et al, 2016; Palacio et al, 2014)
Many areas of the semi-arid region previously covered by a peculiar vegetation, adapted to long drought periods and high temperatures, have been gradually replaced by agricultural crops and pastures, which became susceptible to erosion due to the lack of soil conservation measures
The present study aimed to demonstrate experimentally the possibility of recovering the quality of a soil and provide the basis for recovering an area affected by water erosion on the banks of the Salitre river, tributary of the São Francisco river
Summary
Soil is a non-renewable resource and its loss may cause serious socioeconomic consequences, such as sedimentation of rivers, loss of soil productivity and desertification (Ochoa et al, 2016; Palacio et al, 2014). Many areas of the semi-arid region previously covered by a peculiar vegetation, adapted to long drought periods and high temperatures, have been gradually replaced by agricultural crops and pastures, which became susceptible to erosion due to the lack of soil conservation measures. In this context, in the middle course of the Salitre river, tributary of the São Francisco river, the soil and water are in advanced degree of degradation by water erosion. The main causes of gully formation are anthropogenic factors, as the clearing of native forests and tilling of fallow lands (Sidorchuk, 1999)
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