当旱灾来袭时，哪一个水系统最能经受住干旱 危机:依赖于短期限制的体系还是 已经提前计划并采取了保护措施 在干旱开始之前？ 这篇文章着眼于使问题复杂化的各种因素 节水与干旱的关系。其中包括 基线用水模式、系统增长率、供水 以及水权、蓄水能力和干旱的性质 它本身一个数学模型被用来模拟25年的历史 对于服务于普通住宅社区的“典型”供水系统 客户。计算年度家庭总使用量，如下所示: 以及室内和室外的年平均使用量。模型也 分配了系统供应水平和存储容量。 在“历史”的第九年，社区经历了 最终成为长期干旱的开始。这个 模型生成两个场景来响应此事件。在 首先，供水商对干旱毫无准备，依赖 通过限制来弥补日益减少的供应。在第二种情况下， 系统管理员开始在未来几年采取保护措施 社区历史的第一年并继续实施 慢慢地。到干旱来袭时，水的使用已经减少 减少到足以使系统能够成功 经受住危机。 在大多数情况下，长期节水和提高效率 作为一个整体，该计划将优于水资源配给和限制 对干旱的反应。包括表格，数字。

When a drought hits, which water system best survives the crisis: the system that relies on short-term restrictions or the one that has planned ahead and instituted conservation measures before the drought's onset? This article looks at the various factors that complicate the relationship between water conservation and drought. These include baseline water-use patterns, system growth rates, water supplies and water rights, storage capacity, and the nature of the drought itself. A mathematical model was used to simulate a 25-year history for a "typical" water system serving an average community of residential customers. Total annual household use was calculated, as well as annual average indoor use and outdoor use. The model also assigned a system supply level and storage capacity. In the ninth year of its "history," the community experiences the onset of what eventually becomes a long-term drought. The model generates two scenarios in response to this event. In the first, the water provider is unprepared for the drought and relies on restrictions to make up for dwindling supplies. In the second, system managers begin adopting conservation measures in the first year of the community's history and continue implementing them gradually. By the time the drought hits, water use has been reduced sufficiently enough that the system is able to successfully weather the crisis. In most cases, a long-range water conservation and efficiency program will outperform water rationing and restrictions as a response to drought. Includes table, figures.