Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
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...
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...