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Salinities and Sediment Transport in the Bolivian Highlands
| Content Provider | Semantic Scholar |
|---|---|
| Author | Guyot, Jean Loup E', L. N. O. R. I. E. G. Az M. A. R. O. C. H. ' H. C. A. L. L. E. Quintanilla |
| Copyright Year | 2001 |
| Abstract | Guyot, J.L., Roche, M.A., Noriega, L., Calle, H. and Quintanilla, J., 1990. Salinities and sediment transport in the Bolivian highlands. J. Hydrol., 113: 147-162. Salinities and sediment loads of the rivers of the entire interior drainage basin of the Lake Titicaca, Rio Desaguadero, Lake Poopo and salars, as well as their evolution from upstream to downstream, have been characterized on the basis of the results of four samplings during runoff periods. On the other hand, the regimes of dissolved and suspended matter transport are characterized with perioclic measurements and samplings at hydrometrical stations over several years. The junction of Lake Poopo and the Salar of Coipasa, since 1985 is noted, which recalls that an unique terminal lake of large area existed during some parts of the Quaternary. Mechanical and chemical erosion rates have been calculated for the basins that drain the Western (Rio Mauri) and Eastern (Rio Suches) Cordilleras of the Bolivian Andes. Most of the sediment comes from the Western Cordillera, with a mechanical erosion rate of 640 t kmz yr-I for the basin of the Rio Mauri. On the other hand, Lake Titicaca is the main source of dissolvea matter to Lake Poopo via the Rio Desaguadero. \ INTRODUCTION The system comprised by Lake Titicaca and its inflowing tributaries, its outlet the Rio Desaguadero, which feeds Lake Poopo, the Rio Laca Jahuira, which exceptionally connects this lake and the Salar of Coipasa, and the Salar of Uyuni, constitute the main drainage of the interior drainage basin of the highlands in the heart of the high Andes. The climatological and hydrological Program of Bolivia (PHICAB)* undertook several field campaigns for the study of the salinities from upstream to downstream in the Bolivian highlands, in order to extend to the whole fluvio-lacustrine system the preliminary results reported by Ballivian and Risacher (1981) and Carmouze et al. (1981). Four * PHICAB participating institutions: ORSTOM, French Institute of Scientific Research for Development through Cooperation; SENAMHI, Bolivian National Service of Meteorology and Hydrology; IHH-UMSA, Institute of Hydraulics and Hydrology of the University of San Andres, La Paz; and IIQ-UMSA, Institute of Chemical Research of the University of San Andres, La Paz. ORSTQV Fonds Documentaire |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_5/b_fdi_30-30/31429.pdf |
| Language | English |
| Access Restriction | Open |
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| Content Type | Text |
| Resource Type | Article |
