Perfil da temperatura do solo nos biomas florestais da Amazônia e Mata Atlântica com aplicação da transformada em ondeletas.

Abstract

Soil temperature (TS) is important in soil respiration studies in forest environments. This study aimed to evaluate and compare the seasonal and spatial soil temperature profiles in two tropical forest biomes, Amazon rainforest and Atlantic forest, using the wavelet transform. For the Amazon Rainforest area, data from the year 2009 were used at depths 2,5,10,20 and 50 cm measured with MCM 101 (IMAG-DLO, Wageningen The Netherlands) sensors on tower K34 (2ºÐ 36 '32 " S, 60º 12 '33 "W) in the Cuieiras Biological Reserve located in the municipality of Manaus-AM, belonging to the LBA-INPA micrometerology group. In the Atlantic Forest, data from the year 2010 were used at depths 1,5,10,20 and 50 cm measured through copper / contact temopars in a microteorological tower (10º 17 '36 "S, 36º 17' 24" W) in the Private Reserve of Natural Heritage located in the municipality of Coruripe, AL. The results showed that the TS in the Amazon forest presents little variation in time, with high thermal amplitude, throughout the year, with thermal amplitude above 10ºC. The calculation of the wavelet transform (TO) showed that the TS variability in forest regions is defined by temporal multi-scales. In the Amazon Rainforest, TO presented periodicity on 24-hour and 8-16 day scales with high persistence, homogeneity and high energy. While the Atlantic Forest exhibited oscillations with these same characteristics on the 24 hour and 4 to 16 day scales.