Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation

doi:10.1016/j.marpolbul.2020.111331

CORC > 海洋研究所 > 中国科学院海洋研究所 > 胶州湾海洋生态系统国家野外研究站

	Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation
	Lu, Jing-Jing 3,4; Zhang, Guang-Tao 1,2,3,4; Zhao, Zeng-Xia 4
刊名	MARINE POLLUTION BULLETIN
	2020-08-01
卷号	157 页码:8
关键词	Eutrophication Silicate fertilizer Rice husk ash Phytoplankton community Enrichment experiment
ISSN号	0025-326X
DOI	10.1016/j.marpolbul.2020.111331
英文摘要	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.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050401] ; Science and Technology Service Network Initiative[Y82346101L] ; Taishan Scholars Project
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000548531100063
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/167945]
专题	海洋研究所_胶州湾海洋生态系统国家野外研究站
通讯作者	Zhang, Guang-Tao
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式 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.