中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effects of suspended culture of the seaweed laminaria japonica aresch on the flow structure and sedimentation processes

文献类型:期刊论文

作者Zhang Zehua1,2; Huang Haijun1; Liu Yanxia1; Yan Liwen1; Bi Haibo1
刊名Journal of ocean university of china
出版日期2016-08-01
卷号15期号:4页码:643-654
关键词Kelps Suspended culture Velocity profiles Sedimentation processes Heini bay
ISSN号1672-5182
DOI10.1007/s11802-016-2994-9
通讯作者Huang haijun(hjhuang@qdio.ac.cn)
英文摘要The culture of suspended kelp, such as laminaria japonica aresch, has arisen in nearshore areas for approximately 30 years since the 1980s. this long-term activity has significant impact on the regional hydrodynamic and sedimentary environments. in this study the impact was investigated, based on synchronized multi-station data from continuous observations made within and around the culture area. in total, three current velocity profiles were identified inside and on the landward side of the culture area. based on the current velocity profiles we calculated the boundary layer parameters, the fluxes of erosion/deposition, and the rate of sediment transport in different times at each observation site. comparison between culture and non-culture periods showed that the presence of suspended kelp caused the reduction in the average flow velocity by approximately 49.5%, the bottom friction velocity by 24.8%, the seabed roughness length by 62.7%, and the shear stress and the flux of resuspended sediment by approximately 50%. from analyses in combination with the corresponding vertical variation of the suspended sediment distribution, it is revealed that the lifted sediments by resuspension is mixed with the upper suspended material, which will modify the regional distribution of suspended sediment. these changes in flow structure and sediment movement will accelerate seabed siltation, which corresponds to the changes in seabed erosion/deposition. however, under the influences of the seasonal changes in kelp growth the magnitude of change with the seabed siltation was not obvious inside the culture area, but a fundamental change was apparent around the culture area.
WOS关键词SEAGRASS POSIDONIA-OCEANICA ; ZOSTERA-MARINA L ; YELLOW SEA ; THALASSIA-TESTUDINUM ; WESTERN-AUSTRALIA ; SUBAQUEOUS DELTA ; NUMERICAL-MODEL ; WATER-FLOW ; BEDS ; RESUSPENSION
WOS研究方向Oceanography
WOS类目Oceanography
语种英语
WOS记录号WOS:000379536300010
出版者OCEAN UNIV CHINA
URI标识http://www.irgrid.ac.cn/handle/1471x/2374669
专题中国科学院大学
通讯作者Huang Haijun
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Zhang Zehua,Huang Haijun,Liu Yanxia,et al. Effects of suspended culture of the seaweed laminaria japonica aresch on the flow structure and sedimentation processes[J]. Journal of ocean university of china,2016,15(4):643-654.
APA Zhang Zehua,Huang Haijun,Liu Yanxia,Yan Liwen,&Bi Haibo.(2016).Effects of suspended culture of the seaweed laminaria japonica aresch on the flow structure and sedimentation processes.Journal of ocean university of china,15(4),643-654.
MLA Zhang Zehua,et al."Effects of suspended culture of the seaweed laminaria japonica aresch on the flow structure and sedimentation processes".Journal of ocean university of china 15.4(2016):643-654.

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来源:中国科学院大学

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