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Consumptive Water Use Analysis of Upper Rio Grande Basin in Southern Colorado

机译：科罗拉多州南部上里奥格兰德盆地的耗水量分析

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摘要

Water resource management and governance at the river basin scale is critical for the sustainable development of rural agrarian regions in the West. This research applies a consumptive water use analysis, inspired by the Water Footprint methodology, to the Upper Rio Grande Basin (RGB) in south central Colorado. The region is characterized by water stress, high dessert conditions, declining land health, and a depleting water table. We utilize region specific data and models to analyze the consumptive water use of RGB. The study reveals that, on an average, RGB experiences three months of water shortage per year due to the unsustainable extraction of groundwater (GW). Our results show that agriculture accounts for 77% of overall water consumption and it relies heavily on an aquifer (about 5096 of agricultural consumption) that is being depleted over time. We find that, even though potato cultivation provides the most efficient conversion of groundwater resources into economic value (m~3 GW/$) in this region, it relies predominantly (81%) on the aquifer for its water supply. However, cattle, another important agricultural commodity produced in the region, provides good economic value but also relies significantly less on the aquifer (30%) for water needs. The results from this paper are timely to the RGB community, which is currently in the process of developing strategies for sustainable water management.
机译：流域规模的水资源管理和治理对于西部农村农业地区的可持续发展至关重要。这项研究受水足迹方法的启发，对科罗拉多州中南部的上里奥格兰德盆地（RGB）进行了耗水量分析。该地区的特点是缺水，高甜点条件，土地健康状况下降和地下水位枯竭。我们利用区域特定的数据和模型来分析RGB的耗水量。该研究表明，由于不可持续抽取地下水（GW），RGB平均每年要缺水三个月。我们的结果表明，农业占总用水量的77％，并且它严重依赖于随着时间的流逝而逐渐枯竭的含水层（约占农业用水量的5096）。我们发现，尽管马铃薯种植能够在该地区最有效地将地下水资源转化为经济价值（m〜3 GW / $），但其供水主要依赖于含水层（81％）。但是，牛是该地区另一种重要的农业商品，提供了良好的经济价值，但对水的需求也大大减少了对含水层的依赖（占30％）。本文的结果对RGB社区是及时的，该社区目前正在制定可持续水管理策略。

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  • 来源
    《Environmental Science & Technology》 |2017年第8期|4452-4460|共9页
  • 作者

    Jonathan Dubinsky; Arunprakash T. Karunanithi;

  • 作者单位

    Center for Sustainable Infrastructure Systems, University of Colorado Denver, Denver, Colorado- 80217, United States;

    Center for Sustainable Infrastructure Systems, University of Colorado Denver, Denver, Colorado- 80217, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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