烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 山东省海岸带环境工程技术研究中心

	烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系
	姜明 ; 赵国强 ; 李兆冉 ; 盛彦清
刊名	海洋科学
	2018
卷号	42 期号:8 页码:90-97
关键词	还原性无机硫活性铁深层柱状沉积物硫化度矿化度 Reduced inorganic sulfur Reactive iron Deep core sediments Degree of pyritization Degree of sulfidity The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.
ISSN号	1000-3096
其他题名	Distribution characteristics and relationship between reduced inorganic sulfur and reactive iron in core sediments outside the mouth of the Jiahe River in Yantai
产权排序	(1) 中国科学院烟台海岸带研究所山东省海岸带环境工程技术研究中心 ; (2) 中国科学院大学
英文摘要	The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer;reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.
WOS关键词	还原性无机硫 ; 活性铁 ; 深层柱状沉积物 ; 硫化度 ; 矿化度 ; Reduced inorganic sulfur ; Reactive iron ; Deep core sediments ; Degree of pyritization ; Degree of sulfidity
WOS研究方向	Environmental Sciences & Ecology
语种	中文
CSCD记录号	CSCD:6435667
资助机构	国家自然科学基金 ; 中国科学院关键技术人才项目
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/25165]
专题	烟台海岸带研究所_山东省海岸带环境工程技术研究中心烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院烟台海岸带研究所山东省海岸带环境工程技术研究中心; 2.中国科学院大学
推荐引用方式 GB/T 7714	姜明,赵国强,李兆冉,等. 烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系[J]. 海洋科学,2018,42(8):90-97.
APA	姜明,赵国强,李兆冉,&盛彦清.(2018).烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系.海洋科学,42(8),90-97.
MLA	姜明,et al."烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系".海洋科学 42.8(2018):90-97.