Page 97 - Enzymes in Tropical Soils

Enzymes in Tropical Soils 85

Chapter VI:

EFFECTS OF SOIL WATER AND

TEMPERATURE ON SOIL ENZYMES

6.1 Relationship between Soil Water, Soil Temperature, and Air Temperature
6.2 Soil Water and the Release and Adsorption of Enzymes by Soil Colloids
6.3 Soil Water and Temperature versus the Life of Microorganisms
6.4 Soil Water and Temperature versus Soil Biochemical Reactions
6.5 Regulating Soil Water Contents and Temperature

S
oil water and soil temperature are important soil physical properties and are
both closely related and significantly affect the soil enzymatic activities. As
previously discussed, the activities of soil enzymes increase with the
increase in soil water contents and /or temperature until particular values,
after which the soil enzymatic activities decline. In case of soil water, the declining
pattern is due to the limitation of O 2 diffusion into the soil system which then

Abdul Kadir Salam - 2014