SOIL HEAT 



299 



The Effect of Soil Moisture on the Volume Specific 

 Heat of Soil, the Moisture being Expressed as a Per- 

 centage of the Total Water Capacity 



It is at once evident, from these data and the accom- 

 panying curves (see Fig. 46), that moisture, in its effect 

 on the specific heat of an average soil, is so potent as to 



Fig. 46. 



-Curves showing the effect of moisture on the volume specific 

 heat of soils of different texture and humus content. 



