Hydrologic and hydraulic simulations for use in macrodrainage designs for gully management and recovery

Autor: Ligia de Freitas Sampaio, Valéria Guimarães Silvestre Rodrigues, Danielle de Almeida Bressiani, Rogério Resende Martins Ferreira
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2017
Předmět:
Zdroj: Dyna, Vol 84, Iss 202, Pp 129-136 (2017)
Druh dokumentu: article
ISSN: 0012-7353
2346-2183
DOI: 10.15446/dyna.v84n202.61254
Popis: Runoff on susceptible terrains that is not associated with adequate drainage causes soil erosion, as gullies. Gullies and drainage continue to be major issues in reclamation projects since soil erosion can be reactivated after the application of recovery measures. This paper describes a low-cost project framework for macrodrainage for a gully in Nazareno (MG, Brazil) to provide support to gully management and recovery. We used a simple methodology with the application of Geographic Information Systems (GIS) and concentrated hydrologic and hydraulic models (freely available softwares). The basin has steep slopes (8 to 20%) and the water flows mainly to the northwest, which contribute to exacerbate erosion problems. We studied the effect of environmental conditions on different simulations to elaborate a drainage system project using the free software tools. Therefore, the findings of this paper can aid gully management and recovery for this and other areas with similar issues.
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