The Amazon. Bio-geochemistry applied to river basin management
Publication link: http://www.sciencedirect.com/science/article/pii/S0883292705001113
Publication Year: 2005
Publication Author: Tardy, Y., V. Bustillo, C. Roquin, J. Mortatti, and R. Victoria
Publication Magazine: Applied Geochemistry
The Amazon. Bio-geochemistry applied to river basin management: Part I. Hydro-climatology, hydrograph separation, mass transfer balances, stable isotopes, and modelling.
A hydrochemical model, using hydrograph separation, developed for the Niger basin, has been proposed as a strategic tool for studying the watershed dynamics at any time and space scales. The model is applied to the Amazon basin, including the main channel and its major tributaries. The database corresponds to a sampling and analytical program developed over 8 cruises at 9 stations (about 70 samples), collected in the framework of the CAMREX Project (1982–1984). The model, based on a hydrograph separation of 3 reservoirs, is successful in extrapolating and predicting the geochemical and environmental behaviour of such large basins, naturally submitted to large secular or annual, regular or even catastrophic climatic oscillations. Several topics have been considered.