Efeito da remoção de uma floresta de transição Amazônia-Cerrado no microclima

• Ano de defesa: 2016
• Autor(a) principal: Mützenberg, Dalila Morgana de Souza
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Mato Grosso; Brasil; Instituto de Física (IF); UFMT CUC - Cuiabá; Programa de Pós-Graduação em Física Ambiental
• Palavras-chave em Português: Cerrado; Clima local; Redução das áreas de floresta; Estação seca; CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA; Local climate; Reduction of forest areas; Dry season
• Link de acesso: http://ri.ufmt.br/handle/1/2322

The Cerrado is the second largest Brazilian biome, occupying 21% of the country. It has a seasonal climate where the rainy season is followed by a dry period. Half of the two million square kilometers, unique Cerrado has been transformed by changes in land cover or land use, which led to reduction of forest areas and degradation of natural habitats resulting impact on the local climate and ecosystem functioning. Thus, the objective was to understand the changes effect in land cover on local climate condition in an Amazon-Cerrado transition area. The study area is located approximately 500 km from Cuiabá, in the Small Hydroelectric Plant (SHP) Baruíto, located in municipal Campo Novo dos Parecis, MT. The experiment was conducted in a forest fragment Amazon-Cerrado transition and exposed soil, from January 2012 to December 2013, in which the solar radiation, accumulated rainfall, air temperature, soil temperature, relative humidity and speed wind were analyzed in exposed soil and forest considering the dry season and rainy season. The accumulated rainfall in the rainy season had maximum in 2013. Solar radiation showed slightly higher values in the dry season. The relative humidity was higher during the rainy season. The average air temperature was higher during the rainy season, while the maximum temperature did not show seasonal variation between seasons. The minimum air temperature was lower in the dry season, with seasonality. In analysis, the temperature of medium and minimum air showed no significant seasonal difference between the stations while the maximum air temperature was higher in both seasons. The relative humidity and wind speed showed seasonal variation between the seasons while the net radiation did not vary between seasons. The wind speed was higher during the dry season. Overall, in the forest, vegetation influenced positively on the climate compared to bare soil with the highest temperature range, higher solar radiation, wind speed higher and lower relative humidity.