Riparian control of stream-water chemistry: Implications for hydrochemical basin models
IAHS-AISH Publication
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Abstract
End-member mixing analysis has been used to determine the hydrological structure for basin hydrochemical models at several catchments. Implicit in this use is the assumption that controlling end members have been identified, and that these end members represent distinct landscape locations. At the Panola Mountain Research Watershed, the choice of controlling end members was supported when a large change in the calcium and sulphate concentration of one of the end members was reflected in the stream water. More extensive sampling of groundwater and soil water indicated, however, that the geographic extent of the contributing end members was limited to the riparian zone. Hillslope solutions were chemically distinct from the riparian solutions and did not appear to make a large contribution to streamflow. The dominant control of the riparian zone on stream-water chemistry suggests that hydrological flow paths cannot be inferred from stream-water chemical dynamics.
Suggested Citation
Hooper, R.P., Aulenbach, B., Burns, D.A., McDonnell, J., Freer, J., Kendall, C., Beven, K., 1998, Riparian control of stream-water chemistry: Implications for hydrochemical basin models: IAHS-AISH Publication, v. 248, p. 451-458.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Riparian control of stream-water chemistry: Implications for hydrochemical basin models |
| Series title | IAHS-AISH Publication |
| Volume | 248 |
| Year Published | 1998 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | IAHS-AISH Publication |
| First page | 451 |
| Last page | 458 |