2018 WATER AND IRRIGATED AGRICULTURE IN ARIZONA Introduction - What is Irrigated Agriculture?

Following the demise of the Hohokam culture, The Reclamation Act of 1902 permitted the federal the Akimel O’odham (Pima), as likely descendants of government to fund the construction of dams and other the complex Hohokam culture, became established in irrigation projects in semi-arid western states, such as southern and central Arizona. [...] The Association applied to the Reclamation gold fields, the Akimel O’odham were diverting water Service for construction of Roosevelt Dam on the Salt from the river to agricultural fields in the valley of the River, and Roosevelt Dam became one of the first storage Middle Gila, creating a virtual breadbasket in Arizona. [...] Since major challenge throughout the area, and it is leading to publication of the Water Atlas, irrigated agriculture in some environmental problems, such as subsidence and the Hualapai and Sacramento Basins east of the river the formation of land fissures. [...] to designate an INA after its groundwater modeling study Within the Southeastern Arizona Planning Area, and other evidence showed sufficient groundwater for farmers in the Safford Basin irrigated cotton, grain, and irrigation of the cultivated lands in the area at the rates alfalfa with 181,700 acre-feet per year of groundwater of withdrawal current at the time of the study. [...] With the voluntary participation of SRP Conservation and 11 irrigation districts and farms, these two programs together resulted in an estimated 216,000 acre-feet of The irrigation efficiency of an agricultural operation may water left in Lake Mead from 2014 through the end of be defined as the ratio of water beneficially used to the 2017.