IOCAS-IR  > 胶州湾海洋生态系统国家野外研究站
Nitrogen removal through oyster cultivation: Integration with artificial fertilization makes it more efficient
Liu, Mengtan1,2,3; Wang, Zhaohui1,4; Zhang, Guangtao1,2,3,4
2021-10-20
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume792Pages:9
Corresponding AuthorZhang, Guangtao(gtzhang@qdio.ac.cn)
AbstractThe use of bivalve aquaculture to mitigate eutrophication in coastal waters has been proposed for years. As nitrogen overenrichment is usually accompanied by comparative shortages in silicate and phosphate, bivalve cultivation integrated with artificial fertilization may exhibit better nitrogen removal performance than bivalve cultivation alone. During a 15-day mesocosm experiment in a nitrogen-eutrophicated, phosphate-limited coastal pond, the nitrogen fixation in oyster tissue under rice husk ash (RHA) 1 fertilized conditions was 10 times higher than that in the oyster-only treatments with the same density. Meanwhile, the concentrations of dissolved inorganic nitrogen (DIN) and particulate nitrogen (PN) in the combined oyster-fertilization treatments decreased by 87.0% and 57.2%, respectively. Compared with the RHA fertilization treatments, the net DIN consumption was significantly lower and decreased with the oyster density in the oyster-only treatments. The dissolved N/Si ratio decreased from 1.44 to 1.01 and 0.93 in the control and fertilization treatments, respectively, whereas in the oyster-only treatments, it increased to 3.74 at low density and 29.15 at high density. Our results indicate that oyster cultivation can stimulate the regeneration of nitrogen in dissolved forms and intensify relative silicate shortages. The integration of RHA fertilization mediated silicate shortage and helped maintain a balanced dissolved N/Si ratio. Moreover, the combined oyster-RHA fertilization enhanced nitrogen removal efficiency and biomass accumulation and increased the feasibility of oyster cultivation as a cost-effective nitrogen reduction measure. (C) 2021 Elsevier B.V. All rights reserved.
KeywordNutrient limitation Nitrogen reduction Crassostrea gigas Eutrophication Fertilization
DOI10.1016/j.scitotenv.2021.148057
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA230504] ; Science and Technology Service Network Initiative[Y82346101L] ; National Program on Key Basic Research Project[2015CB452903]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000689484600003
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/176231
Collection胶州湾海洋生态系统国家野外研究站
Corresponding AuthorZhang, Guangtao
Affiliation1.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, 1 Wenhai Rd, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu, Mengtan,Wang, Zhaohui,Zhang, Guangtao. Nitrogen removal through oyster cultivation: Integration with artificial fertilization makes it more efficient[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,792:9.
APA Liu, Mengtan,Wang, Zhaohui,&Zhang, Guangtao.(2021).Nitrogen removal through oyster cultivation: Integration with artificial fertilization makes it more efficient.SCIENCE OF THE TOTAL ENVIRONMENT,792,9.
MLA Liu, Mengtan,et al."Nitrogen removal through oyster cultivation: Integration with artificial fertilization makes it more efficient".SCIENCE OF THE TOTAL ENVIRONMENT 792(2021):9.
Files in This Item:
File Name/Size DocType Version Access License
1-s2.0-S004896972103(1885KB)期刊论文出版稿延迟开放CC BY-NC-SAView 2023-7-1后可获取
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Mengtan]'s Articles
[Wang, Zhaohui]'s Articles
[Zhang, Guangtao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Mengtan]'s Articles
[Wang, Zhaohui]'s Articles
[Zhang, Guangtao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Mengtan]'s Articles
[Wang, Zhaohui]'s Articles
[Zhang, Guangtao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 1-s2.0-S0048969721031284-main.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.