IRRIGATION/LEACHING EXPERIMENT- BIKINI
ISLAND (CONTINUED~
PHASE I
3 to 5 percent of inventory was moved to the groundwater.
Approximately
results for the 2.5 acres cleared of vegetation
Preliminary
uptake
of 137CS,
by plants
grown subsequent
show a reduced
to irrigation.
Results from February and May 1985 collections..
-
137Cs Ratio, Control Site/IrritgiitiOnSite
Plant Species
pCi/g Wet Weight Control/pCig
256
Grass
Glory
26
Messerschmidia
20
Corn
27
Morning
Interpretation
Duration?
- Exchangeable
Time dependent;
Pool of 137CS.
one year evaluation
the uptake in various plants in the irrigation
processing
Wet Weight Irrigation
so far.
We will need to evaluate
plot (i.e., collect samples for
and analysis) over the next 2-3 years.
The duration of the effect will dictate the usefulness
cleanup-option
and the need for N, P, K application
subsequent
to irrigation.
Additional
field and laboratory experiments
of the observed
effect and for predicting
next 3 years.
28
of this method as a
as the continuing treatment
are required to establish the basis
the possible duration beyond the