FIRE EFFECTS ON SOIL AND VEGETATION IN A DEGRADED BRAZILIAN SAVANNA

Abstract

This research consists of a comparative study through the controlled application of fire under different conditions of natural and exotic phytophysiognomy of the Cerrado vegetation area. The area of study is located in Cerrado recovery vegetation and degraded pasture areas. On this area, five experimental plots were established from the specific characteristic of its vegetation cover, slope and soil type (treatments) and connected to a Gerlach trough that accumulates the runoff and were weekly measured. Two artificial fires were applied to plots in an interval of 8 months in attempt to understand the effects of fire on runoff, sediment yield and regrowth of vegetation. The results show that runoff do not present differences between treatments through the period of study. Medium values of sediment yield for all plots vary from 6.70 g L-1 to 57.24 g L-1 showing that the plots which present high protection by vegetation create conditions to diminish the impact of precipitation on the surface.

Keywords: Soil Erosion; Experimental Plots; Fire.

Author Biographies

Yasmmin Tadeu Costa, State University of Center West (UNICENTRO), Guarapuava (PR), Brazil

Doutoranda na UNICENTRO. Graduada em Geografia pela Universidade Federal de Uberlândia abrangendo os níveis de Licenciatura e Bacharelado, atualmente é mestranda em Ciência do Solo pela Universidade Federal de Lavras. Tem experiência na área de Geografia física, com ênfase em Pedologia e Conservação do solo.

Anna Carolina Barcelos, Federal University of Uberlândia (UFU), Uberlândia (MG), Brazil.

Mestranda em Geografia da UFU. Licenciada em Geografia pela Universidade Federal de Uberlândia (2016) e Bacharel em Geografia pela Universidade Federal de Uberlândia (2017). Atualmente cursa Mestrado em Geografia pela mesma instituição (UFU). Estagiária no laboratório de geomorfologia da Universidade Federal de Uberlândia. Tem experiência na área de Geociências, com ênfase em Geomorfologia, atuando principalmente nos seguintes temas: geomorfologia, erosão do solo, geoprocessamento e cartografia geomorfológica.

Silvio Carlos Rodrigues, Federal University of Uberlândia (UFU), Uberlândia (MG), Brazil.

Professor associado junto a Universidade Federal de Uberlândia. Tem experiência na área de Geociências, com ênfase em Geomorfologia, atuando principalmente nos seguintes temas: geomorfologia, cartografia geomorfológica, erosão do solo, análise ambiental integrada e mapeamento geomorfológico.

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Published
05/07/2018
How to Cite
COSTA, Yasmmin Tadeu; BARCELOS, Anna Carolina; RODRIGUES, Silvio Carlos. FIRE EFFECTS ON SOIL AND VEGETATION IN A DEGRADED BRAZILIAN SAVANNA. Mercator, Fortaleza, v. 17, july 2018. ISSN 1984-2201. Available at: <http://www.mercator.ufc.br/mercator/article/view/RMv17Txt16p1a16_2018en>. Date accessed: 03 july 2020. doi: https://doi.org/10.4215/rm2018.e17016.
Section
ARTICLES

Keywords

Soil Erosion; Experimental Plots; Fire;