Effectiveness of growth stimulation programs in the Cachapoal River Basin

This work evaluates the effectiveness of two rainfall stimulation programs carried out in the Cachapoal river basin by Hidromet company between 2000 and 2003 and 2008 – 2011, through two methodologies called: graphical analysis of historical behavior and of correlation – regression. It presents interesting results on the increase in precipitation and the pluviometric regime.