AMA INA

This data is a query from groundwater_basin_ADWR to create AMA boundaries. According to ARS 45-402(13) "Groundwater basin" means an area which, as nearly as known facts permit as determined by the director pursuant to this chapter, may be designated so as to enclose a relatively hydrologically distinct body or related bodies of groundwater, which shall be described horizontally by surface description. The 1980 Arizona Groundwater Code recognized the need to aggressively manage the state’s finite groundwater resources to support the growing economy. Areas with heavy reliance on mined groundwater were identified and designated as Active Management Areas (AMAs). The five AMAs (Prescott, Phoenix, Pinal, Tucson, and Santa Cruz) are subject to regulation pursuant to the Groundwater Code. Each AMA carries out its programs in a manner consistent with these goals, while considering and incorporating the unique character of each AMA and its water users. In the Phoenix, Prescott, and Tucson AMAs, the primary management goal is safe-yield by the year 2025. Safe-yield is accomplished when no more groundwater is being withdrawn than is being annually replaced. In the Pinal AMA, where the economy is primarily agricultural, the management goal is to preserve that economy for as long as feasible, while considering the need to preserve groundwater for future non-irrigation uses. In the Santa Cruz AMA the management goal to maintain a safe-yield condition in the active management area and to prevent local water tables from experiencing long term declines.本数据集对应groundwater_basin_ADWR发起的一项用于划定主动管理区边界的查询任务。根据亚利桑那州修订法规（ARS）第45-402条第(13)款，"地下水流域（Groundwater basin）"指经该章节规定由主管官员依据现有已知事实划定的区域，该区域应大致围合一处或多处相对独立的水文地下水体，且需通过地表描述明确其水平范围。1980年《亚利桑那州地下水法典》（Arizona Groundwater Code）明确了需对本州有限的地下水资源进行集约化管理，以支撑持续增长的经济发展。彼时，过度依赖抽取地下水的区域被认定并划定为"主动管理区（Active Management Areas, AMAs）"。亚利桑那州共5处主动管理区，分别为普雷斯科特（Prescott）、菲尼克斯（Phoenix）、皮纳尔（Pinal）、图森（Tucson）及圣克鲁斯（Santa Cruz），均需依据《地下水法典》接受监管。各主动管理区均结合自身及用水群体的独特属性，以契合上述管理目标的方式推进各项管理工作。在菲尼克斯、普雷斯科特及图森主动管理区，核心管理目标为在2025年前实现"采补平衡（safe-yield）"，即地下水年抽取量不超过年补给量的状态。皮纳尔主动管理区的经济以农业为主，其管理目标为在可行范围内尽可能维持当地农业经济，同时兼顾为未来非灌溉用途留存地下水资源的需求。圣克鲁斯主动管理区的管理目标为维持区域内的采补平衡状态，并防止当地地下水位长期下降。