RELATION OF SOIL TEMPERATURE WITH AIR TEMPERATURE AT THE JURASSIC RIVER VALLEY

• Main Authors: Barbara Skowera, Jakub Wojkowski
• Format: Article
• Language: Polish
• Published: Polish Society of Ecological Engineering (PTIE) 2017-02-01
• Series: Inżynieria Ekologiczna
• Subjects: thermal conditions; soil temperature; active surface temperature; the Kraków-Częstochowa Upland
• Online Access: http://www.journalssystem.com/ie/ZWIAZEK-TEMPERATURY-GLEBY-Z-TEMPERATURA-POWIETRZA-W-WARUNKACH-JURAJSKIEJ-DOLINY-RZECZNEJ,65855,0,2.html

The paper presents the results of research on thermal conditions of the soil and active surface. The main aim of the research was to evaluate the relation of active surface and soil temperature with air temperature. In this evaluation, data from the period 1991–2006 from meteorological stations in Ojców were used. The meteorological station is situated in the southern part of the Kraków-Częstochowa Upland in the bottom of the Jurassic valley. For all the depths, daily, monthly and annual soil temperature was calculated. To evaluate the relation between soil temperature and air temperature, precipitation and snow cover the Spearman correlation coefficients were used. The strongest relation between the air temperature and soil temperature was observed in spring and autumn. The rise in the precipitation in spring and autumn made the relation of air temperature and soil temperature weaker and in summer the relation between the air temperature and soil temperature and statistically significant only to 20 cm deep. It was also proved that the precipitation in summer may lead to higher soil temperature. In winter, because of the snow, the relation between air temperature and soil temperature was the weakest and in most cases statistically not significant. It was also found that the differences in the temperature of the surface covered with snow and the soil without any snow cover depends primarily on the snow cover thickness.