SLIDE 1
Soils appear robust, healthy; porewater and fiber content data indicate breakdown of organic matter highest at site B, closest to Estelle Canal influx note: did not measure fiber content at site D because of Typha ingrowth
non-fractionated as a percent of original volume
ent
100
u m
1.6
B
Fiber content in perce
40 50 60 70 80 90
fractionated as a percent of orginal volume
a t i
- d
i s s
- l
v e d c a l c i u t
- m
a g n e s i u m
1.0 1.1 1.2 1.3 1.4 1.5 Direct entry of Estelle Canal water to marshes
p g
Fiber content in percent
40 50 60 70 80 90 100
Salinity (ppt)
0.0 0.5 1.0 1.5 2.0 2.5
R a
0.8 0.9 1.0
M as N) 30 35
fractionated as a percentage of non-fractionated volume
iber content in percent
50 60 70 80 90
ed ammonium (uM 5 10 15 20 25 30
B
F
40
- P. hemitomon
(average of four marshes) mixed (edge, non- floating)
- P. hemitomon
(gage, non-floating)
- P. hemitomon
(interior, floating) Figure 8. Fiber content analysis of soil samples at Bayou aux Carpes marshes. Values are compared with the averages from a control group of four marshes dominated by P. hemitomon at the Barataria Preserve of Jean Lafitte National Historical Park and Preserve. Values are averaged in 5-cm increments for the top 25 cm, with three replicates per depth interval.
Dissolve 20 40 60 80 100 120 5 Dissolved ortho-phosphate (uM as P)