Patterns of hydrological exchange and nutrient transformation in the hyporheic zone of a gravel-bottom stream: examining terrestrial - aquatic linkages
Triska FJ, Duff JH, Avanzino RJ. 1993. Patterns of hydrological exchange and nutrient transformation in the hyporheic zone of a gravel-bottom stream: examining terrestrial - aquatic linkages. Freshwater Biology. 29:259-274
Little Lost Man Creek in Redwood National Park, California, is the site for this study of nitrate cycling and exchanges of water and dissolved chemicals between a stream and the land around it. The study examined connections between the stream channel and the groundwater below, finding an oxidized layer just below the stream and an anoxic layer farther below. Injection of tracers in August 1984 allowed determination of some of the characteristics of transport and exchange. The authors discuss differences in travel time and different results at various transects. Transport of dissolved oxygen is particularly important to processes involving nitrogen, and the paper discusses other aspects of nitrification and denitrification. Results concern both provision of nutrients for stream restoration projects and reduction of stream degradation from non-point sources. The studies identify some of the factors, both biotic and abiotic, involved in effective management. Drawings show well locations and some transport results, and graphs illustrate some of the data.
- Type
- Journal Article
- Authors
- Triska, Frank; Duff, John; Avanzino, Ronald
- Units
- REDW
- Keywords
- Aquatic Sciences, Dissolved Oxygen (DO), Groundwater, Hydrology, hyporheic zone, Little Lost Man Creek Redwood National Park CA, Nitrates (NO3), Nutrient Cycle, Prairie Creek Bibliography, Rivers & Streams, Tracers