Area: 12.1 ha
Elevation: 470-595 m
Gage type: None
Initial year: 1970
Objective: To study the effect of block clearcutting on watershed hydrology and nutrient flux and cycling.
- Commercially logged as a stem-only, block clearcut in November 1970.
- Branches and tops were left on site.
- Simulated streamflow increased 36 percent the first year after cutting and declined steadily until it returned to precutting levels by year six.
- Streamwater ion concentrations increased from 295 ueq/L to 593 ueq/L two years after the harvest before returning to precutting levels by year three.
Continued research/treatment: Monitor changes in water yield and stream chemistry.
Comments: Watershed 101 has no streamgage, so streamflow was estimated using the hydrologic model Brook2.