YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Alternative TitleInorganic Carbon Formation in the Surface Sediments of the Major Coastal Rivers along the North West Side of Bohai Bay
张永; 高学鲁; 王允周
Source Publication广西科学院学报
Keyword渤海湾 表层沉积物 连续浸取 无机碳形态 河流
Contribution Rank中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所);
Abstract【目的】调查渤海湾西北部沿岸河流表层沉积物中不同形态无机碳(IC)的分布和影响因素,阐明我国近岸不同环境沉积物中IC分布形态的异同和调控机制。【方法】采用连续浸取方法,根据IC在沉积物中的结合强度,将其分为交换态(氯化钠相)、弱碱结合态(氨水相)、强碱结合态(氢氧化钠相)、弱酸结合态(盐酸羟胺相)和残渣态,分析表层沉积物中不同形态的IC含量,并讨论其与各地球化学参数之间的关系。【结果】渤海湾西北部沿岸河流表层沉积物中总IC的平均含量为6.76mg/g。沉积物中各相IC的平均含量为盐酸羟胺相(3.21mg/g)>残渣相(1.92 mg/g)>氨水相(0.77 mg/g)>氯化钠相(0.64 mg...; 【Objective】The environmental behavior and mobility of inorganic carbon(IC)depend strongly on their specific chemical forms and binding state.This study investigated the specific chemical forms of IC in the surface sediments collected from the coastal rivers along the Bohai Bay.【Methods】Sediment samples were extracted sequentially using solutions of sodium chloride(NaCl),ammonia(NH3·H2O),sodium hydroxide(NaOH),hydroxylamine hydrochloride(NH2OH·HCl),resulting in five fractions:Exchangeable fraction(NaCl fraction),weak alkali extractable fraction(NH3·H2O fraction),strong alkali extractable fraction(NaOH fraction),weak acid extractable fraction(NH2OH·HCl fraction)and residual fraction.Geochemical factors affecting the IC content were discussed.【Results】The average IC content in surface sediments ofthe coastal rivers along the Bohai Bay was 6.76mg/g.The average content of IC in different fractions was NH2OH·HCl fraction(3.21mg/g)>residual fraction(1.92mg/g)>NH3·H2O fraction(0.77mg/g)>NaCl fraction(0.64 mg/g)>NaOH fraction(0.22 mg/g).NH2OH·HCl fraction was the main speciation of IC in sediments.Total organic carbon(TOC)had a strong impact on various IC fractions.The IC content extracted by NH3·H2O was closely related to sediment parameters.【Conclusion】The composition and distribution of different forms of inorganic carbon in the surface sediments of the studied area exhibited a significant spatial variation.In addition,a significant difference was found in the mobility of IC and the possible environmental parameters in the sediments from different sampling site.
Indexed By其他
Funding Organization中国科学院战略性先导科技专项项目(XDA11020702)资助
Citation statistics
Document Type期刊论文
Recommended Citation
GB/T 7714
张永,高学鲁,王允周. 渤海湾西北部沿岸主要入海河流表层沉积物中无机碳形态研究[J]. 广西科学院学报,2015(3):161-166.
APA 张永,高学鲁,&王允周.(2015).渤海湾西北部沿岸主要入海河流表层沉积物中无机碳形态研究.广西科学院学报(3),161-166.
MLA 张永,et al."渤海湾西北部沿岸主要入海河流表层沉积物中无机碳形态研究".广西科学院学报 .3(2015):161-166.
Files in This Item: Download All
File Name/Size DocType Version Access License
渤海湾西北部沿岸主要入海河流表层沉积物中(1042KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[张永]'s Articles
[高学鲁]'s Articles
[王允周]'s Articles
Baidu academic
Similar articles in Baidu academic
[张永]'s Articles
[高学鲁]'s Articles
[王允周]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[张永]'s Articles
[高学鲁]'s Articles
[王允周]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 渤海湾西北部沿岸主要入海河流表层沉积物中无机碳形态研究.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.