Table 2
Soil (cm yr−1
) and phosphorus (g m−2 yr−1
) accretion rates in STA-1 W, STA-2 and STA-
3/4 (mean ± sd). EAV = Emergent Aquatic Vegetation, SAV = submerged aquatic vegetation,
EAV cov. = Conversion from EAV to SAV.
STA Vegetation Age
(years)
Recently
accreted soil
depth† (cm)
Soil
accretion
(cm yr−1
)
Phosphorus
accretion
(g m−2 yr−1
)
STA-1 W 16 14.7 ± 5.1
(n = 28)
0.9 ± 0.3 1.3 ± 0.6
Cell 1A EAV 19.3 ± 7.3 1.2 ± 0.46 1.6 ± 0.88
Cell 2A EAV 16.1 ± 1.5 1.0 ± 0.1 2.0 ± 0.21
Cell 1B EAV cov 13.5 ± 2.7 0.8 ± 0.17 0.8 ± 0.46
Cell 2B SAV 15.9 ± 5.4 1.0 ± 0.34 1.7 ± 0.66
Cell 3 EAV cov 12.9 ± 4.8 0.9 ± 0.3 1.2 ± 0.5
Cell 4 SAV 10.8 ± 3.5 0.7 ± 0.22 0.7 ± 0.22
STA-1 W
Cell 5
10 12 ± 5.5
(n = 12)
1.2 ± 0.55 2.0 ± 1.2
Cell 5A# EAV 10.4 ± 4.2 1.0 ± 0.42 2.0 ± 1.37
Cell 5B# SAV 12.6 ± 6.5 1.2 ± 0.65 2.1 ± 1.1
STA-2 10 11 ± 3.3
(n = 29)
1.1 ± 0.3 1.9 ± 0.9
Cell 1 EAV 8.9 ± 1.8 1.0 ± 0.26 1.0 ± 0.13
Cell 2 EAV 10.5 ± 2.6 1.0 ± 0.26 1.6 ± 0.41
Cell 3 SAV 12.5 ± 4 1.2 ± 0.4 2.5 ± 1
Cell 4 SAV 12.9 ± 3.8 1.3 ± 0.94 2.7 ± 0.94
STA-3/4 6 10 ± 4.6
(n = 39)
1.7 ± 0.77 3.3 ± 2
Cell 1A EAV 8.2 ± 2.9 1.4 ± 0.48 2.7 ± 0.9
Cell 2A EAV 12.1 ± 6.7 2.0 ± 1.1 5.5 ± 4.2
Cell 1B SAV 11.9 ± 5 2.0 ± 0.83 2.4 ± 0.97
Cell 2B SAV 8.5 ± 2.8 1.5 ± 0.46 3.8 ± 1.5
† Number of soil cores analyzed shown in parentheses. # Cell 5A and Cell 5B became functional in WY2000, much later than the rest of the
STA-1 W which came online in WY1994