SIGNIFICANT VARIABLES OF WATER QUALITY IN HYDROGRAPHIC MICRO-BASINS WITH SILVICULTURE ACTIVITIES

  • Benvindo Sirtoli Gardiman Junior Instituto Federal do Espírito Santo - IFES
  • Giovanni de Oliveira Garcia Universidade Federal do Espírito Santo - UFES
  • Roberto Avelino Cecílio Universidade Federal do Espírito Santo - UFES
  • Rodolfo Araújo Loos Pesquisador na empresa Fibria Celulose SA
Keywords: Forest hydrology, Silviculture management, Multivariate statistics

Abstract

The most significant variables of water quality of possible impacts of silviculture managements in four hydrographic micro-basins are analyzed. Thirty variables of water quality have been monitored between January and June 2012. Data collection occurred after silviculture activities or after rainfall. The physical and chemical characteristics of water were related to the influence of soil-climate factors, silviculture management and current legislation. Results underwent multivariate statistics to identify the most significant variables of water quality. Results show that the most representative variables in water quality variation are related to the soil´s natural elements, such as minerals, solids and acidity, and to geographic aspects, such as salinity. According to the management method employed, silviculture activities did not affect variables of hydric quality employed under these conditions.

Author Biographies

Benvindo Sirtoli Gardiman Junior, Instituto Federal do Espírito Santo - IFES
Engenheiro Ambiental, Mestre em Ciências Florestais
Giovanni de Oliveira Garcia, Universidade Federal do Espírito Santo - UFES
Engenheiro Agrônomo, Dr., Depto. Engenharia Rural, UFES, Alegre, ES
Roberto Avelino Cecílio, Universidade Federal do Espírito Santo - UFES
Engenheiro Agrícola, Doutor. Professor do Departamento de Ciências Florestais e da Madeira da Universidade Federal do Espírito Santo - UFES
Rodolfo Araújo Loos, Pesquisador na empresa Fibria Celulose SA
Engenheiro Agrônomo, Doutor. Pesquisador em Ecofiologia Florestal
Published
2018-06-29
Section
Environment