Protected springs water resilience in watershed of south of Brazil

ABSTRACT Springs of the Vacacaí-Mirim river basin, in Atlantic Forest biome, are protected by law because they provide an environmental service through water supply. No study provided identification, estimates and information about seasonality resilience conditions these springs, which supply central region state Rio Grande do Sul, Brazil. This monitored headwater flow volume interpreted results use duration curve, characterizing springs showing production capacity. As a result, presented higher curve contrasts. Considering consistent monitoring time, differences characteristics occurred analyzed allowed to qualify based on their persistence, temporary or ephemeral flow, more resilient. The shape permanence was different for each spring basin. able determine confirm reality being accurate necessary than from springs.