IOCAS-IR  > 海洋地质与环境重点实验室
Numerical study of hydrodynamic conditions and sedimentary environments of the suspended kelp aquaculture area in Heini Bay
Zhang, Zehua1,2,3; Huang, Haijun1,4; Liu, Yanxia1,3; Bi, Haibo1,2; Yan, Liwen1,2
2020-01-05
Source PublicationESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
Volume232Pages:13
Corresponding AuthorZhang, Zehua(zzh@qdio.ac.cn)
AbstractKelp aquaculture is one of the most important exploitation and utilization activities in coastal areas. The impacts of high-density kelp aquaculture on coastal area environments are attracting increasing attention. Based on in situ data from the suspended kelp aquaculture area of Heini Bay, numerical simulations were applied to distinguish hydrodynamic and sediment transport features under natural and aquaculture conditions. By comparing model simulations with observations, the calibrated models reflected the hydrodynamic conditions and sedimentary environments in Heini Bay well. Although the kelp scenario model was calibrated by data measured in an early stage of aquaculture and produced a relatively conservative result, the model was able to simulate the trend of sedimentary environment changes in the aquaculture area. The results of the simulations indicated that, after the occurrence of aquaculture activities, the average velocity was reduced by approximately 21% in the waters around Chu Island and Moye Island, and by 50% within the kelp aquaculture area. Along the western edges of the aquaculture area (i.e., the nearshore area), the average velocity barely changed, but the instantaneous velocity during the flood/ebb tide may increase by up to 3 times. The annual maximum erosion rate around Chu Island, Moye Island and Heishi Reef decreased by approximately 30%, and the total range of the erosion area where the erosion intensity was not less than 0.01 m/yr decreased by almost 36%. The deposition area in Heini Bay shifted to deeper waters, and almost the entire kelp aquaculture area was in a deposition state. However, the deposition rates in the aquaculture area were reduced accordingly.
KeywordKelp aquaculture Tidal current Sediment transport Sedimentary environments Numerical simulation Heini bay
DOI10.1016/j.ecss.2019.106492
Indexed BySCI
Language英语
Funding ProjectOpen Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2018KG09] ; National Natural Science Foundation of China (NSFC)-Shandong Joint Fund for Marine Science Research Centers[U1606401] ; NSFC[41076031] ; NSFC[41976166]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000514014000004
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/165596
Collection海洋地质与环境重点实验室
Corresponding AuthorZhang, Zehua
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Zehua,Huang, Haijun,Liu, Yanxia,et al. Numerical study of hydrodynamic conditions and sedimentary environments of the suspended kelp aquaculture area in Heini Bay[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2020,232:13.
APA Zhang, Zehua,Huang, Haijun,Liu, Yanxia,Bi, Haibo,&Yan, Liwen.(2020).Numerical study of hydrodynamic conditions and sedimentary environments of the suspended kelp aquaculture area in Heini Bay.ESTUARINE COASTAL AND SHELF SCIENCE,232,13.
MLA Zhang, Zehua,et al."Numerical study of hydrodynamic conditions and sedimentary environments of the suspended kelp aquaculture area in Heini Bay".ESTUARINE COASTAL AND SHELF SCIENCE 232(2020):13.
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