美国美国是旱灾频发的国家,为有效缓解干旱,特别是持续性、破坏性的干旱造成的影响,美国建立了一系列的旱灾减灾措施,包括建立干旱监测指标、实施降低系统脆弱性的风险管理、制定干旱有效管理计划的行动方案,建立国家综合干旱信息系统 The United States The United States is a country with frequent droughts. To effectively mitigate the impact of drought, especially persistent and destructive droughts, the United States has set up a series of drought mitigation measures, including establishing drought monitoring indicators and implementing the risk of reducing system vulnerabilities Management, development of a plan of action for an effective drought management plan, establishment of a national integrated drought information system