The feasibility and enumeration studies have led to the following conclusions:
The nitrogen fixation studies should be done in 1973, using
acetylene reduction technique with some verification by N15. The denitrification
studies should be done with N15 technique. The decision to continue more enumeration sampling of nitrogen transforming bacteria should...
Macrobenthos populations of the IBP lakes were sampled during October and November of 1972. Analyses of the samples revealed dominance of chrinomids and oligochaetes in both littoral and profundal regions for at least this time of year. Due to sampling difficulties the oligochaete material was not used for chemical analyses....
Aquatic mineral measurements and sediment characterization of the Cedar
River basin lakes and streams reveals two largely distinct physical and
chemical environments. Near the headwaters of the Cedar River Watershed
the composition of lakes and streams reflect adjacent rocks but the effects
of forest and agricultural practices and of processes...
Research concerning the indigenous slug, ArioZimax coZumbianus G., followed
a three-pronged approach resulting in information on spatial distribution,
population dynamics, and consumer roles. Investigations were carried out
in a high slug density site at Carkeep Park, Cedar River and the laboratory.
Sixteen propeller anemometers were placed 29 meters above a 45-year-old (approximately) Douglas-fir stand. Correlations between paired anemometers, when viewed as a function of distance between them, showed that eddies up to 5 meters in diameter were common, and indicated that larger eddies up to 9 meters across occur. Partial correlation...