桑沟湾筏式海带养殖对潮流垂直结构的影响
发布时间：2018-07-31 12:32
【摘要】：利用桑沟湾海带播苗前和成熟期的海流剖面资料,对最显著的M_2分潮流椭圆四要素(最大流速、椭圆率、最大流速方向和最大流速出现时间)的垂直分布特征进行对比分析,结果表明筏式海带养殖对潮流垂直结构有显著影响,由海带播苗前的单一海底边界层,变为海带成熟期的海表和海底双重边界层。海带播苗前,M_2分潮流椭圆要素在垂向上变化不大;而在海带成熟期,从中层向海面和海底,最大流速迅速减小、椭圆率逐渐增大、最大流速方向左偏、最大流速出现时间提前。湾口中部的最大流速方向从海带播苗前的南北方向转为海带成熟期的西北—东南方向,这是由水位梯度的变化造成的。
[Abstract]:The vertical distribution characteristics of the four elements (maximum velocity, ellipticity, direction of maximum velocity and time of appearance of maximum velocity) of the most significant two components of tidal current in Sanggou Bay Laminaria were compared and analyzed by using the data of current profile before seeding and maturing stage in Sanggou Bay. The results show that raft kelp culture has a significant effect on the vertical structure of tidal current, from the single seabed boundary layer before the seeding of Laminaria to the sea surface and sea bottom double boundary layer in the mature stage of kelp. Before Laminaria sown, the Ellipse element of M _ 2 sub-tidal current does not change much in vertical direction, but in the mature period of Laminaria, the maximum velocity decreases rapidly from the middle level to the sea level and the sea floor, the ellipticity increases gradually, the direction of maximum velocity deviates to the left, and the time of maximum velocity appears earlier. The maximum velocity in the mouth of the bay changed from the north and south direction of the kelp seedling to the northwest-southeast direction of the kelp maturity stage, which was caused by the change of the water level gradient.
【作者单位】： 卫星海洋环境动力学国家重点实验室;国家海洋局第二海洋研究所;浙江大学海洋学院;浙江工商大学环境科学与工程学院;
【基金】：国家重点基础研究发展计划项目资助(2011CB409803)
【分类号】：S968.421;P731.23
[Abstract]:The vertical distribution characteristics of the four elements (maximum velocity, ellipticity, direction of maximum velocity and time of appearance of maximum velocity) of the most significant two components of tidal current in Sanggou Bay Laminaria were compared and analyzed by using the data of current profile before seeding and maturing stage in Sanggou Bay. The results show that raft kelp culture has a significant effect on the vertical structure of tidal current, from the single seabed boundary layer before the seeding of Laminaria to the sea surface and sea bottom double boundary layer in the mature stage of kelp. Before Laminaria sown, the Ellipse element of M _ 2 sub-tidal current does not change much in vertical direction, but in the mature period of Laminaria, the maximum velocity decreases rapidly from the middle level to the sea level and the sea floor, the ellipticity increases gradually, the direction of maximum velocity deviates to the left, and the time of maximum velocity appears earlier. The maximum velocity in the mouth of the bay changed from the north and south direction of the kelp seedling to the northwest-southeast direction of the kelp maturity stage, which was caused by the change of the water level gradient.
【作者单位】： 卫星海洋环境动力学国家重点实验室;国家海洋局第二海洋研究所;浙江大学海洋学院;浙江工商大学环境科学与工程学院;
【基金】：国家重点基础研究发展计划项目资助(2011CB409803)
【分类号】：S968.421;P731.23
【相似文献】
相关期刊论文 前10条
1 王春生;海带养殖增产新技术[J];科技信息;1994年02期
2 张金城;;海带和海带的人工养殖[J];科学大众;1956年03期
3 金振辉;刘岩;张静;宫庆礼;崔竞进;刘涛;;中国海带养殖现状与发展趋势[J];海洋湖沼通报;2009年01期
4 黄祖源;;海带南移福建连江近海生长养育的试验[J];科学;1958年03期
5 黄祖源;;福建连江近海海带的平行养殖[J];科学;1959年03期
6 T3超元;g呈奎;，
本文编号：2155594
本文链接：https://www.wllwen.com/kejilunwen/haiyang/2155594.html
