Watershed management projects are done for many years but current of these projects is not signal on many countries. For example selection of every project placement has not had suitable evidence, except local consideration. I have invented a method for correction of this problem. You know on every watershed studies usually there is a mixture of processes between carried out studies in various files of studies, which is combined of all studies and its name is PRIORITY MAP. The results correlation coefficient from this system is a good evidence for judgment about operation of a watershed management unit.
