Sediment concentration and flux measurements span 31 years (1957-1988) across three small forested catchments in Oregon's H.J. Andrews Experimental Forest. This dataset quantifies the long-term effects of different timber harvest intensities, including a 100% clearcut, a 25% patch-cut, and a control watershed. Data was collected by the Long-Term Ecological Research (LTER) Program and analyzed by EPA, OSU, and Corvallis FSL labs.
Use Cases
- Model sediment flux over time using watershed treatment type (clearcut, patch-cut, control) and sampling date.
- Analyze seasonal sediment concentration patterns using data collected during storm rising legs, peaks, and falling legs.
- Compare sediment delivery differences between watersheds with 96, 60, and 10 hectare drainage areas.
- Study the impact of measurement method changes (Gooch crucible to GF/C to GF/F filter) on long-term data consistency.
Strengths
- 31-year continuous measurement period from 1957 to 1988.
- Paired watershed design comparing three distinct timber harvest treatments.
- Samples collected during specific hydrological phases (rising leg, peak, falling leg).
Limitations
- Sample size and row count are unknown.
- Data collection ended in 1988, limiting analysis of contemporary forestry impacts.
- Specific sediment concentration values and column details are not provided.
Provenance
- Source
- Long-Term Ecological Research (LTER) Program, H.J. Andrews Forest (AND).
- Collection Method
- Vertically integrated suspended sediment grab samples collected in pint milk bottles from flumes; analyzed via filtration techniques (Gooch crucible, GF/C, GF/F filter).
- Time Range
- 1957 to 1988.
- Freshness
- null
- Geography
- H.J. Andrews Experimental Forest, Western Cascade Range, Oregon, USA; three catchments of 96, 60, and 10 hectares.