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A new frontier in Texas: managing and regulating brackish groundwater

机译:德克萨斯州的一个新领域:管理和调节咸淡的地下水

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摘要

The challenge of providing access to clean water is visible in Texas, where chronic drought coincides with increasing water demand. The 2012 Texas State Water Plan reports a 2,700 million cubic metres (MCM) gap between freshwater supply and demand in 2010, a number predicted to grow to 3,100 MCM by 2060. Due to the difficulty of reducing water demand, policy makers and water providers are evaluating new sources, including brackish groundwater for desalination or direct use. It is estimated that Texas aquifers contain more than 3,300,000 MCM of brackish groundwater, which, if converted to fresh water, could meet current consumption needs for 150 years, albeit at a greater cost. Using Texas as a case study, this article addresses policies to better manage the supply of brackish groundwater. We review the geological, technical, and legal contexts of groundwater in Texas and situate brackish groundwater within those constructs. We consider efforts by other states to regulate brackish groundwater and identify management goals, including facilitating access to and incentivizing use of brackish groundwater and protecting freshwater aquifers from potential saline intrusion related to brackish groundwater production. Various brackish groundwater policies are examined, and policy recommendations regarding use of the resource are offered.
机译:在得克萨斯州,提供洁净水的挑战是显而易见的,在得克萨斯州,长期干旱与需水量的增加同时发生。 2012年《德克萨斯州水计划》报告称,2010年淡水供需之间的缺口为27亿立方米(MCM),预计到2060年,这一数字将增长到3,100 MCM。由于难以减少水的需求,决策者和水供应商评估新资源,包括用于淡化或直接使用的微咸地下水。据估计,得克萨斯州含水层含有超过3,300,000 MCM的咸淡水,如果将其转换为淡水,则可以满足150年的当前消耗需求,尽管成本更高。本文以德克萨斯州为案例研究,提出了更好地管理微咸地下水供应的政策。我们回顾了德克萨斯州地下水的地质,技术和法律背景,并在这些构造中放置了微咸地下水。我们考虑其他国家为调节咸淡地下水而做出的努力,并确定管理目标,包括促进咸淡地下水的获取和利用,以及保护淡水含水层免受与咸淡地下水生产相关的潜在盐分入侵。研究了各种咸淡的地下水政策,并提供了有关资源利用的政策建议。

著录项

  • 来源
    《Water Policy》 |2016年第3期|727-749|共23页
  • 作者单位

    Rice Univ, Nanosyst Engn Res Ctr Nanotechnol Enabled Water T, Baker Inst Publ Policy, Ctr Energy Studies, MS-40 POB 1892, Houston, TX 77251 USA;

    Rice Univ, Nanosyst Engn Res Ctr Nanotechnol Enabled Water T, Baker Inst Publ Policy, Ctr Energy Studies, 6100 Main St MS-519, Houston, TX 77005 USA;

    Rice Univ, Nanosyst Engn Res Ctr Nanotechnol Enabled Water T, Baker Inst Publ Policy, 6100 Main St MS-519, Houston, TX 77005 USA;

    Rice Univ, Nanosyst Engn Res Ctr Nanotechnol Enabled Water T, 6100 Main St MS-519, Houston, TX 77005 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Brackish groundwater; Desalination; Freshwater demand; Freshwater supply; Groundwater regulation; Texas; Water scarcity;

    机译:咸淡的海水;淡化;淡水需求;淡水供应;地下水调节;得克萨斯州;水资源短缺;

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