Soil temperature:
– most living organism thrive only within a narrow temperature range
– due to the limit within which biochemical/physiological processes can proceed efficiently
– usual temperature ranges between 25-35°C
– at low extremes, biochemical processes slow down
– at a higher extreme, enzymes are denatured
– organisms therefore remain within this range
– some are adapted to extreme conditions
– soil temperature influence vegetation cover and humus content
– it also affects soil oil and moisture content.