50°55°60°6y 10° 1^° eO° <^ qP ^ ^ ^^ 



^ ^ 



c5 



1 — \ — ^ — ^ — ^ — ^ — ^ ^ ^ 



7^ 







FRANZ JOSEF 

 LAND 



°0 - 





REACTIVE PHOSPHORUS 



60' 



6-^° 



70° 



FIGURE 19. Reactive Phosphorus Distribution at 10 Meters 



32 



