• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the American Water Resources Association >Impact of Urban Growth and High Residential Irrigation on Streamflow and Groundwater Levels in a Peri-Urban Semiarid Catchment
【24h】

Impact of Urban Growth and High Residential Irrigation on Streamflow and Groundwater Levels in a Peri-Urban Semiarid Catchment

机译：城市成长和高住宅灌溉对围城市半干旱地区流水流和地下水位的影响

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 impact of urbanization on groundwater is not simple to understand, as it depends on a variety of factors such as climate, hydrogeology, water management practices, and infrastructure. In semiarid landscapes, the urbanization processes can involve high water consumptions and irrigation increases, which in turn may contribute to groundwater recharge. We assessed the hydrological impacts of urbanization and irrigation rates in an Andean peri-urban catchment located in Chile, in a semiarid climate. For this purpose, we built and validated a coupled surface-groundwater model that allows the verification of a strong stream-aquifer interaction in areas with shallow groundwater, higher than some sewers and portions of the stream. Moreover, we also identified a significant local recharge associated with pipe leaks and inefficient urban irrigation. From the evaluation of different future scenarios, we found a sustainable water conservation scenario will decrease the current groundwater levels, while the median flow reduces from 408 to 389 L/s, and the low flow (Q(95%)) from 43 to 22L/s. Overall, our results show the relevance of integrating the modeling of surface and subsurface water resources at different spatial and temporal scales, when assessing the effect of urban development and the suitability of urban water practices.
机译：城市化对地下水的影响并不易于理解，因为它取决于各种因素，如气候，水文地质，水管理实践和基础设施。在半干旱景观中，城市化进程可以涉及高耗水量和灌溉增加，这反过来可能有助于地下水充电。我们在半干旱气候中评估了位于智利的Andean Peri城区集水区中城市化和灌溉率的水文影响。为此目的，我们构建和验证了耦合的表面地下水模型，允许验证具有浅地下水的区域的强流 - 含水层相互作用，高于一些下水道和流的部分。此外，我们还确定了与管道泄漏和效率低下城市灌溉相关的显着局部充电。从对不同未来情景的评估，我们发现可持续的水资源保护场景将降低目前的地下水位，而中间流量从408到389 L / s减少，低流量（Q（95％））从43到22L / s。总体而言，我们的结果表明，在评估城市发展的影响和城市水实践的适用性时，在不同的空间和时间尺度上整合表面和地下水资源建模的相关性。

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