Efecto a largo plazo de los incendios forestales en la calidad del agua de dos arroyos en la sub-región Andino-Patagónica, Argentina
2006; Volume: 16; Issue: 2 Linguagem: Inglês
ISSN
1667-782X
Autores Tópico(s)Fire effects on ecosystems
ResumoLong term effect of forest fires in the water quality of two Andean-Patagonian streams, Argentina: Fires which affect both the native and the forest forage species are one of the most important environmental impacts in the Patagonian region. The analyses of the effects produced by this type of disturbance should be focused on: 1) changes occurred in the basin, and 2) changes occurred in the water quality of the water bodies involved. There are not previous reports about the relevance of the effects of forest fires on the water quality of natural environments in the Nahuel-Huapi National Park. The aim of this work is to fill this gap through the study of the impact of fire in two mountain streams. The variables sampled showed that the water quality of the streams changed as a consequence of forest fires. It was possible to detect the effects in the water until three years after the fire. The pH, conductivity and suspended solid values, were in the same order as that of rivers and streams of the region. The total phosphorus, nitrite and ammonia concentration in water were low for the six sites of Chall-Huaco and —ireco
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