• 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 >Hydrodynamic Modeling Improves Green River Reconnection with Floodplain Wetlands for Endangered Fish Species Recovery
【24h】

Hydrodynamic Modeling Improves Green River Reconnection with Floodplain Wetlands for Endangered Fish Species Recovery

机译：水动力学建模改善绿河重新连接濒危鱼类恢复洪泛区湿地

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

We performed two-dimensional (2D) hydrodynamic modeling to aid recovery of the endangered razorback sucker (Xyrauchen texanus) by reconnecting the Green River with its historic bottomland floodplain wetlands at Ouray National Wildlife Refuge, Utah. Reconnection allows spring flood flows to overtop the river levee every two to three years, and passively transport razorback sucker larvae to the wetlands to grow in critical habitat. This study includes (1) river hydrologic analysis, (2) simulation of a levee breach/weir, overtopping of river flood flows, and 2D flow through the wetlands using Hydrologic Engineering Center River Analysis System 2D, and (3) modeling flow and restoration scenarios. Indicators of hydrologic alteration were used to evaluate river flow metrics, in particular flood magnitudes, frequency, and duration. Results showed a target spring flow of 16,000 cfs (453 m(3)/s) and a levee breach elevation of 4,663 ft (1,421 m) amsl would result in a median flow 6,000 acre-feet (7.4 million m(3)) over five days into the wetlands, which is adequate for razorback sucker larvae transport and rearing. Modeling of flow/restoration scenarios showed using gated water control structures and passive low-water crossings between wetland units can provide adequate control of flow movement into and storage in multiple units. Levee breaching can be a relatively simple, cost-effective method to reconnect rivers and historic floodplains, and hydrodynamic modeling is an important tool for analyzing and designing wetland reconnection.
机译：我们进行了二维（2D）流体动力学建模，以帮助濒危剃刀吸盘（Xyrauchen Texanus）的恢复通过重新连接绿河，并在犹他州的ORY国家野生动物避难所的历史底域洪水湿地。重新连接允许春洪流每两到三年将河堤覆盖每两大两到三年，并被动地将剃轮吸盘幼虫运送到湿地，以危急栖息地增长。本研究包括（1）河流水文分析，（2）堤防泄露/堰的仿真，用水文工程中心河分析系统2D，河流洪流和2D流过湿地的流动，（3）模拟流动和恢复场景。水文改变指标用于评估河流流量，特别是洪水幅度，频率和持续时间。结果显示目标弹簧流量为16,000cfs（453米（3）/ s），堤防突破升高为4,663英尺（1,421米）的AMSL将导致中位流量> 6,000英亩 - 脚（740万米（3））在湿地五天内，这适合剃刀吸盘幼虫运输和饲养。流量/恢复场景的建模，使用门控水控制结构和湿地单位之间的被动低水线交叉，可以提供对多个单元的充分控制流动运动和存储。 Levee突发可以是重新连接河流和历史泛源性泛源性的相对简单，经济效益的方法，而流体动力学建模是分析和设计湿地重新连接的重要工具。

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