1'OKEST IN KLUENC ES. 



tvaporation In Fields (E.O.I 

 and Woods (E.W.I compared 

 with Precipitation. iPr. 



SUMMER. AUTUMN. 



FIG. 80. Evaporation and precipitation. 



2.IN 





I. IN 



WINTER. 



SPRING. 



SUMMER. AUTUMN 



Flo. 81. Monthly evaporation in the fields (upper curve) and woods (lower curve). 



SUMMER. AUTUMN: 



Fiii. 82. Percentage of evaporation in the woods as compared with that in open fields. 



100 



SUMMER. AUTUMN. 



FIG. 83. Ratio of evaporation from water surface in field (upper curve) and forest (lower curve) to 



precipitation (top line). 



100 



7 



JJL 



50 



\y 



WINTER. 



SPRING 



SUMMER. 



AUTUMN. 



EVERGREEN TREES. 



.DECIDUOUS TREES 



.YOUNG TREES. 



FIG. Si. Percentage of evaporation in woods to that in the open air. 



