Table 2-5. Above ground biomass P concentrations by zone.
Above Ground TP Concentration
Site Zone n (mg/kg) *Difference p value
Center 122 1830 976 a
Beaty Edge 118 1340 702 b < 0.01
Upland 68 1340 623 b
Center 69 3150 1010 a
Larson Edge 80 2690 1060 b < 0.01
Upland 89 1650 647 c
Mean comparisons using Tukey-Kramer HSD test.
A. B.
a 1,2o a
1,000
1,000
800
Beaty Larson
Soo
E E 0oo
200 200
Center Edge U0and center Edge and
Beaty Larson
Zone and Site Zne and Site
Figure 2-16. Phosphorus storage in AGB at Beaty (A) and Larson (B) wetlands.
Different lower case letters indicate significant differences (a = 0.05).
The P storage root-to-shoot ratios were calculated the same way as the harvested
biomass root-to-shoot ratios; only quadrates that contained both BGB and AGB were
used in the calculation. All ratios were greater than one and did not differ significantly
by zone, meaning P storage was greatest in BGB. These ratios contradict mean AGB and
BGB values in Larson centers. Overall, ratio data suggests that AGB stores more P than
BGB in Larson centers (Table 2-6). The difference, once again, is that the ratios (Table
2-6) are an average of individual quadrate ratios within each respective zone, which only