ANÁLISE MICROCLIMÁTICA NO INTERIOR E FORA DAS FLORESTAS ESTACIONAIS SEMIDECIDUAIS NA ÁREA DA BACIA DA USINA HIDRELÉTRICA DE CAÇU-GO

Abstract

This article analyzed the microclimate in points inside the semideciduous forests (FES) and points out the FES in pasture areas in the basin Caçu Hydropower Plant (UHE - Caçu) , located in the municipalities of Cachoeira Alta and Caçu GO . The data of temperature and relative humidity were obtained from termohigrômetros in daily scale, from September 2011 to September 2012. The methodology used was based on the scale microclimatic Geiger (1961) and Junior Serafini et al (2011) considering a point inside the FES with the best condition regarding aspects: a) structural variability , that is , the size of the species and the stages of age (seedlings until senescent) and b) preserving the non liana infestation , signs of cuts and trampling of livestock species , the plant height and larger diameter at breast height (DAP) . Points within the FES in a better state of preservation showed the lowest absolute maximum temperatures 36.7 ºC in P1 and 37.6 ºC in P2, since the points outside the FES , the pastures had the highest absolute maximum temperatures 42.8 ºC in P7 and P5 at 42.6 ºC , this difference in microclimate is mainly due to vegetation structure in the FES and the use and occupation of land.