Extensive areas of irrigated land in Colorado have become salinized and their associated water supplies have become similarly degraded. The Arkansas River is well known for the degree of its progressive downstream salinization only in relatively recent few years has it been recognized that the Lower South Platte River and associated irrigated lands are becoming increasingly salt affected. Substantial programs have not been implemented to rejuvenate the irrigated lands in Colorado that have become degraded by salinity Programs have been implemented to reduce salinization of the Colorado River with some success but not of the Arkansas or South Platte Rivers.
