COMPARATIVE ANALYSIS OF WATER AND THERMAL REGIME OF TWO EXPERIMENTAL SITES IN PAMPA

Cláudio Alberto Teichrieb, Pablo Eli Soares de Oliveira, Tamires Zimmer, Cristiano Maboni, Daniel Michelon dos Santos, Débora Regina Roberti, Hans Rogério Zimermann

Abstract


In the last 15-20 years has greatly increased research on the problem of climate change, necessitating a demand for reliable measurements of absorption and emission of carbon dioxide, methane, as well as the impact on water resources. In the biome Pampa are the largest continuous natural field extensions, requiring a monitoring of water and temperature regime on the ground. The water content of the soil has spatial and temporal variability affecting many hydrological processes and determining this is needed since the soil store and provide the water and nutrients for the plants, thus involving relationships water-soil-plant-atmosphere. In this work, we compared the water content behavior of the soil at depths of 10, 30 and 50 cm, the temperature of the soil at depths of 5, 15 and 30 cm, heat flux in soil installed 10 cm deep and the thermal conductivity was determined in two experimental sites in the Pampa biome, for the period 01.01.2015 to 06.31.2015. It was found that there are differences between the sites in the capacity to retain moisture in the soil and in the ability to store energy in the soil for the study period.

Keywords


Soil moisture. Soil temperature. Soil heat flow. Thermal conductivity. Pampa.

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DOI: http://dx.doi.org/10.5902/2179460X20180

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