本幻灯片首先介绍美国干旱和半干旱地区的背景信息以及该地区的增长统计数据。涵盖的主题包括:与存储相关的冲突；可持续性的基本规则；用于处理问题的方法 干旱和长期资源包括 保护 重新使用 脱盐， 地下水， 暴雨， 调水/ 营销， 连词用法，以及 地表水进口；此外，地表水进口。

This slide presentation begins with background information on arid and semi-arid regions of the U.S. and statistics on growth in the region. Topics covered include: conflicts associated with storage; basic rules for sustainability; methods being used to deal with the drought and long-term resources include conservation, reuse, desalinization, groundwater, storm water, water transfer/ marketing, conjunctive use, and surface water imports; and, surface water imports.