1. Soil Temperature Profiles Diurnal vertical heat transmission from solar inputs  Follow downward heat pulses animation

2. Soil T Exercise – Data 2 obs for each of 3 quadrants around shade tree Depth (cm) T( o C)010delta sunny morn, shady by midday (NE) 115.114.60.5 2 15.514.01.5 sunny all day (SE) 3 26.019.56.5 4 23.718.15.6 shady through midday (some sunspots) (NW) 516.413.62.8 616.013.32.7 Plot values – Can you explain the change with depth (delta = T vertical gradient) for each site, why these depth profiles differ among sites, and differences in surface temperatures at the surface across sites?

3. Thermal conductivity as a function of soil density for loam at three moisture contents (MC) Why increasing, e.g., with compaction? Thermal conductivity is dependent on….?

4. Soil thermal conductivity of clay loam as a function of organic matter content Why decreasing with OM?

5. Soil thermal conductivity of clay loam as a function of concentrations of NaCl and CaCl2 solutions As salt concentration increases  free water energy decreases  thermal conductivity decreases

6. Heat transmission from fire event VOC translocation Fire and thermal effects

7. Redox oxidizing reducing effect of pH effect of water logging oxidizing reducing WET DRY reduced form oxidized form