Numerical study of hydrodynamic conditions and sedimentary environments of the suspended kelp aquaculture area in Heini Bay

doi:10.1016/j.ecss.2019.106492

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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, Zehua 1,3,4; Huang, Haijun 1,2; Liu, Yanxia 1,3; Bi, Haibo 1,4; Yan, Liwen 1,4
刊名	ESTUARINE COASTAL AND SHELF SCIENCE
	2020-01-05
卷号	232 页码:13
关键词	Kelp aquaculture Tidal current Sediment transport Sedimentary environments Numerical simulation Heini bay
ISSN号	0272-7714
DOI	10.1016/j.ecss.2019.106492
通讯作者	Zhang, Zehua(zzh@qdio.ac.cn)
英文摘要	Kelp 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.
资助项目	Open 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研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000514014000004
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/165595]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Zhang, Zehua
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
推荐引用方式 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.