Phosphorus exchanges between sediment and water in trophically different reservoirs
| Autor: | Mohamed Alaoui Mhamdi, J. Devaux, Lotfi Aleya |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Hydrology
geography Environmental Engineering geography.geographical_feature_category Ecological Modeling Drainage basin Sediment Inorganic ions Pollution Tributary Environmental science Water pollution Bloom Eutrophication Waste Management and Disposal Water Science and Technology Civil and Structural Engineering Trophic level |
| Zdroj: | Water Research. 28:1971-1980 |
| ISSN: | 0043-1354 |
| DOI: | 10.1016/0043-1354(94)90172-4 |
| Popis: | Phosphorus exchanges within the sediment-water interface coupled with several parameters were studied in several reservoirs with geologically different catchment basins and different trophic levels in Morocco and France. The results showed that these exchanges were regulated by a combination of the physical-chemical variability of the environment, the geological composition of the catchment basins and the trophic status of the lake. In the hypereutrophic Villerest reservoir, iron-bound phosphorus is the major form of phosphorus trapped by the sediment whereas, in Moroccan reservoirs, calcium-bound phosphorus prevailed. We suggest that drastic control of phosphorus input into waters be carried out via a large dephosphorization program of the tributaries to avoid bloom formation in the Villerest reservoir and calcium-bound phosphorus dissociation with upward release of bioavailable phosphorus. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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