• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Roadmap for sustainable water resources in southwestern North America
【24h】

Roadmap for sustainable water resources in southwestern North America

机译：北美西南部可持续水资源路线图

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The management of water resources in arid and semiarid areas has long been a challenge, from ancient Mesopotamia to the modern southwestern United States. As our understanding of the hydrological and climatological cycles has improved, and our ability to manipulate the hydrologic cycle has increased, so too have the challenges associated with managing a limited natural resource for a growing population. Modern civilization has made remarkable progress in water management in the past few centuries. Burgeoning cities now survive in desert regions, relying on a mix of simple and complex technologies and management systems to bring adequate water and remove wastewater. These systems have permitted agricultural production and urban concentrations to expand in regions previously thought to have inadequate moisture. However, evidence is also mounting that our current management and use of water is unsustainable. Physical, economic, and ecological limits constrain the development of new supplies and additional water withdrawals, even in regions not previously thought vulnerable to water constraints. New kinds of limits are forcing water managers and policy makers to rethink previous assumptions about population, technology, regional planning, and forms of development. In addition, new threats, especially the challenges posed by climatic changes, are now apparent. Sustainably managing and using water in arid and semiarid regions such as the southwestern United States will require new thinking about water in an interdisciplinary and integrated way. The good news is that a wide range of options suggest a roadmap for sustainable water management and use in the coming decades.
机译：从古代美索不达米亚到现代美国西南部，干旱和半干旱地区的水资源管理一直是一个挑战。随着我们对水文和气候循环的理解得到提高，并且我们对水文循环的操纵能力得到增强，与为不断增长的人口管理有限的自然资源相关的挑战也随之而来。在过去的几个世纪中，现代文明在水资源管理方面取得了显着进步。新兴城市现在可以在沙漠地区生存，它们依靠简单和复杂的技术与管理系统的结合来提供充足的水并去除废水。这些系统使农业生产和城市集中度在以前认为湿度不足的地区扩大。但是，越来越多的证据表明，我们目前对水的管理和使用是不可持续的。物理，经济和生态的局限性限制了新供应的发展和额外的取水量，即使在以前认为不易受水资源限制的地区也是如此。新的限制正在迫使水管理者和决策者重新考虑先前有关人口，技术，区域规划和发展形式的假设。此外，新的威胁，特别是气候变化带来的挑战，现在已经显而易见。在美国西南部等干旱和半干旱地区，可持续地管理和用水将需要以跨学科和综合的方式对水进行新的思考。好消息是，各种各样的选择建议了未来几十年可持续水管理和使用的路线图。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号