Climate change and its effect on the soil water balance of Lages, Santa Catarina Mudanças climáticas e seu efeito no balanço hídrico do solo de Lages, Santa Catarina.

• Autor(a) principal: E Avila A.C.M.*
• Data de Publicação: 2022
• Outros Autores: Albuquerque, Jackson Adriano, Campos, Claudia Guimaraes Camargo
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da Udesc
• Texto Completo: https://repositorio.udesc.br/handle/UDESC/3192

© 2022, Universidade Federal de Pernambuco. All rights reserved.Undertaken activities in agricultural, industrial and urban productions emit gases that increase the greenhouse effect and change both air temperature and precipitation. These changes damage the environment and agricultural production alike, as well as life on Earth. In light of this, the present study has as its objective to understand the climate regime in Lages/SC, a municipality located in southern Brazil, and analyze the effects of climate change on air temperature, precipitation, consecutive dry days and the soil water balance. To that end, historical series corresponding from 1948 to 2020 were used for maximum, average and minimum air temperatures, while the series from 1961 to 2020 were used for precipitation. In order to have the water balance calculated, precipitation and air temperature were considered as input data for the method of Thornthwaite and Mather (1955). As for potential evapotranspiration, soil water storage and available water capacity, they were calculated considering a Humic Dystrudept, classified according to the Soil Taxonomy. Temporal analyses regarding air temperature, precipitation, evapotranspiration, consecutive dry days, intense rains and water balance were conducted by using the Mann-Kendall trend test (0.05). A positive and increasing trend was observed for maximum, average and minimum air temperatures, as well as for the precipitation over the years. Although rainfall volume has increased over time, periods with fifteen consecutive dry days have been increasingly frequent. Despite the changes in temperature, precipitation and rainfall distribution, there were no changes observed in evapotranspiration, occurrence of intense rains or in the soil water balance.