• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hydroinformatics >water renewal timescales in an ecological reconstructed lagoon in China
【24h】

water renewal timescales in an ecological reconstructed lagoon in China

机译：中国生态重建泻湖的水更新时间尺度

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

To improve water quality and construct a landscape lagoon in China, an ecological reconstruction plan for the Qilihai Lagoon (Changli County, Hebei) is proposed. A three-dimensional numerical model (EFDC) was used to study the water renewal capacity in the reconstructed lagoon by using residence time, exposure time and connectivity as timescales. The influences of wind and the depth of the tidal inlet of the lagoon on water renewal capacity were also investigated. The results show that the transport and diffusion processes in the lagoon were strongly influenced by wind and the modification of the tidal inlet. The lagoon under a no wind condition exhibited a low water renewal capacity, especially at the end areas (exposure time, 700-1,000 days). The wind action notably enhanced the water renewal capacity in the lagoon, and the exposure times were all lower than 400 days in the whole region. The optimal inlet depth for the water renewal in the lagoon was predicted to be 4.0 m. The connectivity matrices identified which areas of the domain would be most affected by a pollution source under different conditions. This study examines transport and diffusion processes in a reconstructed lagoon, which could be informative for ecological reconstruction planning.
机译：为了改善水质并在中国建造景观泻湖，提出了七里海泻湖（河北昌黎县）的生态重建计划。使用停留时间，暴露时间和连通性作为时间尺度，使用三维数值模型（EFDC）研究重建泻湖的水更新能力。还研究了风和泻湖潮汐进口深度对换水能力的影响。结果表明，风和潮汐进口的变化强烈地影响了泻湖中的运输和扩散过程。在无风条件下的泻湖表现出较低的水更新能力，尤其是在末端区域（暴露时间为700-1,000天）。风的作用显着增强了泻湖的换水能力，整个地区的暴露时间均低于400天。泻湖中换水的最佳进水深度预计为4.0 m。连接矩阵确定了在不同条件下该域的哪些区域受污染源影响最大。这项研究检查了在一个重建的泻湖中的运输和扩散过程，这可能对生态重建计划有帮助。

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