Soil Thermal Regime

Authored by: Robert Horton , Tyson Ochsner

Handbook of Soil Sciences Properties and Processes

Print publication date:  November  2011
Online publication date:  November  2011

Print ISBN: 9781439803059
eBook ISBN: 9781439803066
Adobe ISBN:

10.1201/b11267-10

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Abstract

What is temperature, and more specifically, what is soil temperature? Temperature is a measure of the average kinetic energy of the molecules of a substance. As kinetic energy increases, the temperature increases. At the macroscale, temperature is a physical property that determines the direction of heat flow between two substances in thermal contact. Heat flows from high temperature to low temperature. Temperature is not a measure of heat content. In order to specify the heat content of a particular substance (e.g., soil), both the heat capacity and the temperature must be known.

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