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Journal of Experimental Agriculture International, ISSN: 2457-0591, ISSN: 2231-0606 (Past),Vol.: 24, Issue.: 1

Original-research-article

Magnitude and Spatiotemporal Variation of the Erosion on the Slope of the Lower São Francisco River, Northeastern Brazil

 

Igor Pinheiro da Rocha1, Francisco Sandro Rodrigues Holanda2*, Mario Monteiro Rolim3, Janisson Bispo Lino2 and Renisson Neponuceno de Araújo Filho4

1IP Sustentabilidade, Av. Jorge Amado, 1565, Jardins, Aracaju-SE, Brazil.

2Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, CEP 49100-000, Jardim Rosa Elze, São Cristóvão - SE, Brazil.

3Universidade Federal Rural de  Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, CEP 52171-900, Recife, PE, Brazil.

4Universidade Federal de Tocantins, Rua Badejós, Lote 7, Chácaras 69/72, s/n - Zona Rural, CEP 77402-970, Gurupi, TO, Brazil.

Article Information

Editor(s):

(1) Dr. Lixiang Cao, Professor, Department of Biotechnology, Sun Yat-sen University, China.

Reviewers:

(1) Şeref Kiliç, Ardahan University,Turkey.

(2) Gitika Thakuriah, Cotton University, India.

(3) Ighodaro I. David, Mangosuthu University of Technology, South Africa.

Complete Peer review History: http://www.sciencedomain.org/review-history/25223

Abstracts

Streams are under erosive processes such as hydrodynamic adjustment. After the construction of a sequence of hydroelectric dams for power generation, the São Francisco River experienced an increase in erosion processes, mainly on the riverbank of its lower course. The objective of this work was to quantify the magnitude and spatial and temporal variation of the erosive process. For this purpose, the erosion pins method was used on a vertical slope composed of Entisol, which was monitored monthly during the year 2013, alongside the acquisition of hydrological and meteorological data. The total soil loss was 35.26 m3, while the monthly magnitude of soil loss ranged from 0.00 to 24,300 mm yr-1, totaling 475,396.1 mm yr-1. The hydrodynamic and geometric characteristics of the watercourse, such as discharge and the proximity of the riverbank from the thalweg, are cited as the main causes of this erosion process.

Keywords :

Mass failure; flow; soil loss.

Full Article - PDF    Page 1-11

DOI : 10.9734/JEAI/2018/41944

Review History    Comments

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