Net Exchange Ecossistem in Subtropical Agriculture Area in Southern Brazil

Marcelo Diaz1, Debora Regina Roberti2, Geovane Webler1, Jackson Fiorin3, Osvaldo L L de Moraes1, Claudio Teichrieb1 and Telmo Amado1, (1)UFSM Federal University of Santa Maria, Santa Maria, Brazil, (2)Universidade Federal de Santa Maria, Department of Physics, Santa Maria, Brazil, (3)CCGL-TEC and UNICRUZ, Cruz Alta, Brazil