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福建水产 ›› 2013, Vol. 35 ›› Issue (2): 85-92.

• 论文与报告 •    下一篇

基于数值模拟的丁字湾海洋环境恢复研究

王勇智1,孙惠凤1,丰爱平2,孙永根1,石洪华2   

  1. 1. 国家海洋局第一海洋研究所
    2.
  • 收稿日期:2012-09-11 修回日期:2013-01-22 出版日期:2013-04-25 发布日期:2013-04-27
  • 通讯作者: 王勇智
  • 基金资助:
    海岛保护与利用规划顶层设计与沙泥类海岛应用示范;国家海洋局海域管理技术重点实验室基金

A preliminary study on marine environment recovery

  • Received:2012-09-11 Revised:2013-01-22 Online:2013-04-25 Published:2013-04-27
  • Contact: wang yongzhi

摘要: 2011年,山东半岛蓝色经济区上升为国家战略后,丁字湾被定位为海洋旅游文化产业聚集区。然而,目前丁字湾沿岸由于近几十年来养殖和盐田业过度围垦造成海湾面积急剧萎缩,湾内水流不畅,淤积严重,湾内大部分海域水质已不能满足要求,海洋生态环境严重衰退。本文应用数值模型模拟了拆除养殖和盐田堤坝后丁字湾水动力、水交换率和纳潮量的变化。计算结果显示拆除堤坝后湾内水动力条件得到了显著增强,半交换时间明显缩短,纳潮量增加近一倍多,对改善丁字湾海洋环境质量、缓解泥沙淤积、增强污染物稀释能力和增加海洋环境容量具有重要的现实意义。此外,本研究还基于数值模拟结果,探讨了丁字湾海洋环境修复的有关建议。

关键词: 丁字湾,海洋环境,数值模拟, Dingzi Bay, marine environment, numerical simulation

Abstract: Dingzi Bay was positioned as Tthe cultural tourism industries cluster district of Dingzi Bay became a new bright spot in the economic integration of Shandong Peninsula, after the was approved as the national strategy. However, In these recent years, the natural coastline and ecological environment in Dingzi Bay were severely damaged due to excessive reclamation for shrimp pools and salt fields. At present, the weak hydrodynamic condition was weak, severe sedimentation, combined with breeding waste and domestic sewage, not only led to ecological environment overload, but also led to low efficiency of sea use in Dingzi Bay. Therefore, the aquaculture and saline dams should be demolished in order to recover marine ecological environment in Dingzi Bay. Numerical simulation was applied for hydrodynamic condition, water exchange rate and tidal capacity changes without aquaculture and saline dams. The numerical simulation results showed that the hydrodynamic condition was significantly enhanced, half-life time was shorter and tidal capacity was nearly increased more than one times much in Dingzi Bay after the demolition of the existing shrimp pools and salt fields. Thus, dams demolition have important significance of marine environment quality improvement, sediment sedimentation remission, pollutant dilution ability enhancement and marine environmental capacity increase in Dingzi Bay. Moreover, some propose were put forward in order to promote the efficiency usage of regional resources and the sustainable development.

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