Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation

doi:10.1016/j.marpolbul.2020.111331

	Seawater silicate fertilizer facilitated nitrogen removal via diatom proliferation
	Lu, Jing-Jing 1,2; Zhang, Guang-Tao1,2,3,4 ; Zhao, Zeng-Xia 1
	2020-08-01
发表期刊	MARINE POLLUTION BULLETIN
ISSN	0025-326X
卷号	157 页码:8
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.
关键词	Eutrophication Silicate fertilizer Rice husk ash Phytoplankton community Enrichment experiment
DOI	10.1016/j.marpolbul.2020.111331
收录类别	SCI
语种	英语
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
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000548531100063
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/167946
专题	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, 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
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
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.

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文件名称/大小	文献类型	版本类型	开放类型	使用许可
Seawater silicate fe（1252KB）	期刊论文	作者接受稿	限制开放	CC BY-NC-SA	浏览