Niveles de boro en las aguas del R?-o Calchaqu?- y sus afluentes. Salta, Argentina

摘要

The departments of Cachi and Molinos are part of the Calchaqu?- valley that is located in the province of Salta, Argentina. This area is irrigated by the Calchaqu?- River. This river has waters all year round like the rest of its tributaries. In some of these rivers the presence of boron (B) with levels greater than 11 mg L-1 was detected. It is considered that these levels of toxicity limit the production diversification capacity and, consequently, the economic potential of the area. This work evaluates the presence of physical chemical factors, such as B, in waters destined for irrigation of the Calchaqu?- River and some of its tributaries.