2.5

 2

 1.5

 1

 0.5

 0

-0.5

-1

-1 C5


 High P, Low N High P, High N


 A *


---------------------------- A-6 ----------------------------------





 A A A
 A



 LA

 Low P, Low N Low P, High N


 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6
 Ecell/En



Figure 4-3. Benthic plot of Log Ecell/En vs. Log Ecell/Ep. Each point represents the
 mean from one sampling period. The X axis represents apparent N influence
 on C mineralization, the Y axis represent apparent P influence on C
 mineralization. Values greater than 1 on the Y axis indicates high perceived
 P availability.



gradient have on cellulose decomposition rates. The coupling of Ecell/Ep and TP in the


CRR model indicates the relative strength of the enzyme parameters BGL and PHO in


predicting cellulose decomposition. This is comparable to the correlation between BGL


and PHO with bacterial production in nutrient enriched and un-enriched mesocosms,


respectively (Chr6st and Rai, 1993). However, as the interactions of other components


within the system indicate, CRR may not be adequate to significantly predict actual litter


decomposition rates, especially in relation to differing litter types.


 The lack of consistent predictive power in EICQ values suggests that the dynamic


changes in nutrient conditions relating to the canal inflows may influence the significance


of the model. The more complex interactions that may be affecting the communities such


* ENR
*REF
ATRANS