| Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation | |
Lu, Jing-Jing1,2; Zhang, Guang-Tao1,2,3,4 ; Zhao, Zeng-Xia1
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| 2020-08-01 | |
| Source Publication | MARINE POLLUTION BULLETIN
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| ISSN | 0025-326X |
| Volume | 157Pages:8 |
| Abstract | Dissolved inorganic nitrogen (DIN) enrichment accompanied by silicate deficiency in seawater can promote dinoflagellate growth over diatom growth and induce further negative ecological consequences. Here, we propose an easily exercisable method for silicate fertilization as a remedy of eutrophication. In the laboratory, rice husk ash (RHA) released silicate and phosphate in an atomic ratio range of 38-113 without a significant influence on DIN. During incubations of silicate-limited waters, low-dose fertilization increased the diatom/dinoflagellate ratio by 1-5 times. With the high-dose fertilizer addition, DIN, with an initial concentration of 7.63 +/- 0.95 mu moll(-1), was exhausted in three days, and the diatom abundance increased by 19 times on the 5th day. The silicate fertilization method presented here can be applied independently in eutrophicated waters for dinoflagellate suppression and dissolved nitrogen removal; this method could also work as a supplementary measure to existing nutrient (N, P) reduction and biomanipulation efforts. |
| Keyword | Eutrophication Silicate fertilizer Rice husk ash Phytoplankton community Enrichment experiment |
| DOI | 10.1016/j.marpolbul.2020.111331 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050401] ; Science and Technology Service Network Initiative[Y82346101L] ; Taishan Scholars Project |
| WOS Research Area | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| WOS Subject | Environmental Sciences ; Marine & Freshwater Biology |
| WOS ID | WOS:000548531100063 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/167946 |
| Collection | 胶州湾海洋生态系统国家野外研究站 |
| Corresponding Author | Zhang, Guang-Tao |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Lu, Jing-Jing,Zhang, Guang-Tao,Zhao, Zeng-Xia. Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation[J]. MARINE POLLUTION BULLETIN,2020,157:8. |
| APA | Lu, Jing-Jing,Zhang, Guang-Tao,&Zhao, Zeng-Xia.(2020).Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation.MARINE POLLUTION BULLETIN,157,8. |
| MLA | Lu, Jing-Jing,et al."Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation".MARINE POLLUTION BULLETIN 157(2020):8. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Seawater silicate fe（1252KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View | |
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