渔港工程对东吾洋内湾海域环境影响研究
发布时间：2018-11-08 20:29
【摘要】：以东吾洋内湾海域环境为研究对象,基于验证的MIKE21中的HD和MT模型,计算分析了单一建设仙东渔港工程、单一建设关门渔港工程和两个渔港工程同时存在三种情景下东吾洋海域潮流场和泥沙场的变化。结果表明,当单一建设关门渔港工程时,流速增幅区域面积最大,关门水道附近泥沙强冲刷区域面积最大;当关门和仙东渔港工程同时存在时,流速增幅及泥沙强冲刷区域面积次之;而当单一建设仙东渔港工程时,流速增幅及泥沙强冲刷区面积最小。相较于其他两种情景,当单一建设关门渔港工程时,关门水道附近水动力条件最强,高流速水体导致沉积在底部的泥沙产生紊动使得水质变得浑浊,对周围藻类植物及浮游动物的生长产生极大的负面作用,也会大大降低紫菜海带养殖区及网箱养殖区的产量,另外对大黄鱼产卵区的分布也会造成很大的冲击。综合考虑,仙东渔港建设较为合理,而关门渔港的选址存在问题。
[Abstract]:Based on the HD and MT models in MIKE21, the paper calculates and analyzes the construction of a single Xiandong fishing port. In the case of single closed fishing port project and two fishing port projects, there are three scenarios for the variation of tidal and sediment fields in the Dongwu sea area. The results show that when a single closed fishing port is constructed, the area of velocity increase is the largest, and the area of sediment scour near the closed channel is the largest. The increase of velocity and the area of sediment strong scour area were the second when the closed door and the Xiandong fishing port project existed simultaneously, but the increase of velocity and the area of sediment strong scour area were the smallest when the single project was constructed. Compared with the other two scenarios, when a single closed fishing port is built, the hydrodynamic conditions near the closed channel are the strongest, and the high velocity water results in turbulent sediment deposition at the bottom, resulting in muddy water quality. It has a great negative effect on the growth of algae and zooplankton around it, and also reduces the production of porphyra kelp culture area and cage culture area, and it also has a great impact on the distribution of spawning area of large yellow croaker (Pseudosciaena Crocea). Considering synthetically, the construction of Xiandong fishing port is more reasonable, but the location of closed fishing port has problems.
【作者单位】： 上海海洋大学海洋科学学院;
【基金】：农业部2014年渔业资源保护和转产转业项目(D8006158005)资助
【分类号】：P731.2;TV148;U658.6
本文编号：2319606
[Abstract]:Based on the HD and MT models in MIKE21, the paper calculates and analyzes the construction of a single Xiandong fishing port. In the case of single closed fishing port project and two fishing port projects, there are three scenarios for the variation of tidal and sediment fields in the Dongwu sea area. The results show that when a single closed fishing port is constructed, the area of velocity increase is the largest, and the area of sediment scour near the closed channel is the largest. The increase of velocity and the area of sediment strong scour area were the second when the closed door and the Xiandong fishing port project existed simultaneously, but the increase of velocity and the area of sediment strong scour area were the smallest when the single project was constructed. Compared with the other two scenarios, when a single closed fishing port is built, the hydrodynamic conditions near the closed channel are the strongest, and the high velocity water results in turbulent sediment deposition at the bottom, resulting in muddy water quality. It has a great negative effect on the growth of algae and zooplankton around it, and also reduces the production of porphyra kelp culture area and cage culture area, and it also has a great impact on the distribution of spawning area of large yellow croaker (Pseudosciaena Crocea). Considering synthetically, the construction of Xiandong fishing port is more reasonable, but the location of closed fishing port has problems.
【作者单位】： 上海海洋大学海洋科学学院;
【基金】：农业部2014年渔业资源保护和转产转业项目(D8006158005)资助
【分类号】：P731.2;TV148;U658.6
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1 吴园园;海阳中心渔港工程附近海域水动力及泥沙冲淤数值模拟[D];中国海洋大学;2014年
，本文编号：2319606
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