226 P. L. Gersper et al. 



0.02 



0.01 - 



0- 



-0.01 



■S -0.02 



-0.03 



o 

 a. 



5-0.04 

 I 



-0.05 - 



-0.06 - 



-0.07 



FIGURE 7-5. Seasonal courses of soil water potential in the upper 

 5 cm of soils of different microtopographic units in 1972. 







Slough 

 Oxygen, % 

 20 



^ 



" 10 



S" 15 



20 

 25 1- 



Site 2 



Basin Trough 



Oxygen, % 

 20 40 60 20 



Site 4 



Basin Trough Top 



Oxygen, % 



20 40 20 40 20 40 



I I I I I I I I I I I I I I I I 1 



FIGURE 7-6. Average oxygen saturation in soils of different 

 microtopographic units in 1972. (Benoit, unpubl.) 



