弥河沉积物的反硝化和厌氧氨氧化过程

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	弥河沉积物的反硝化和厌氧氨氧化过程
	李佳霖 1,2; 秦松 1,2
刊名	中国环境科学
	2021
卷号	41 期号:4 页码:1588-1596
关键词	反硝化作用厌氧氨氧化作用功能微生物影响因素弥河
ISSN号	1000-6923
其他题名	Denitrification and anammox processes in sediment of Mihe River, China
文献子类	Article
英文摘要	Four sites were selected along Mihe River to sample the sediments and characterize physiochemical property to reveal denitrification/anammox processes and their constraints by isotope tracing experiment and molecular biological analysis. The results showed that the rates of denitrification varied from 151.75 to 2847.86mumol/(m2 ·h), and the anammox rates were in the range of 149.57 to 2109.17mumol/(m2 ·h). The relative contribution of anammox in the nitrogen removal was in an average of 56.1%. The nirK type was the dominant denitrifier with the abundance of 0.1910~6~5.1210~6 copies/g in the sediment, which was in the phylum of alpha- and beta- Proteobacteria. The anammox bacteria marked by hzsA gene was in the range of 2.5810~2~1.1410~4 copies/g, which belonged to the Ca. Brocadia clades in Planctomycetes. Furthermore, the denitrification rate was positively related with TN content and PO4 3- concentration, while the anammox rate was positively related with TN content and negatively related with sediment density. The physiochemical property of sediment was the main condition determining the nitrogen removal rates. The results highlight that denitrification and anammox were of great significance to reduce nitrogen eutrophication, and sediment environment treatment was a considerable way to regular nitrogen removal rate.
语种	中文
CSCD记录号	CSCD:6950557
资助机构	国家自然科学基金资助项目
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/30289]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.中国科学院烟台海岸带研究所海岸带生物学与生物资源保护实验室,山东烟台264003; 2.中国科学院海洋大科学研究中心,山东青岛266071
推荐引用方式 GB/T 7714	李佳霖,秦松. 弥河沉积物的反硝化和厌氧氨氧化过程[J]. 中国环境科学,2021,41(4):1588-1596.
APA	李佳霖,&秦松.(2021).弥河沉积物的反硝化和厌氧氨氧化过程.中国环境科学,41(4),1588-1596.
MLA	李佳霖,et al."弥河沉积物的反硝化和厌氧氨氧化过程".中国环境科学 41.4(2021):1588-1596.