|本期目录/Table of Contents|

[1]汤亚洲,陈沐松,李财.蓝藻降解对湖泊沉积物钨迁移转化的影响[J].江苏农业科学,2020,48(19):300-304.
　Tang Yazhou,et al.Effects of cyanobacteria degradation on migration and transformation of tungsten in lake sediments[J].Jiangsu Agricultural Sciences,2020,48(19):300-304.
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蓝藻降解对湖泊沉积物钨迁移转化的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第48卷
期数:
2020年第19期
页码:
300-304
栏目:
资源与环境
出版日期:
2020-10-05

文章信息/Info

Title:
Effects of cyanobacteria degradation on migration and transformation of tungsten in lake sediments
作者:
汤亚洲1; 陈沐松2; 李财2
1.安徽理工大学，安徽淮安 232000； 2.中国科学院南京地理与湖泊研究所，江苏南京 210002
Author(s):
Tang Yazhou; et al
关键词:
蓝藻降解; 沉积物; 钨; 锰; 迁移转化; 溶解氧
Keywords:
-
分类号:
X524
DOI:
-
文献标志码:
A
摘要:
目前湖泊水体富营养化问题依然严重，蓝藻水华频繁暴发，蓝藻降解会形成局部死水区，导致沉积物重金属的释放，然而对于蓝藻降解如何影响沉积物钨的释放目前还不清楚。本研究采用高分辨扩散平衡装置(HR-peeper)原位获取蓝藻降解沉积物溶解态钨和锰的浓度剖面变化信息发现，蓝藻降解期间沉积物-水界面溶解氧浓度迅速降低形成厌氧条件；在厌氧条件下溶解态钨和锰的浓度显著增加，沉积物剖面溶解态钨的浓度平均值与对照组相比增加了29%~79%，溶解态锰的浓度平均值与对照组相比增加了38%~67%。沉积物中增加的钨会进一步扩散至上覆水中，显著增加上覆水体中溶解态钨的浓度。进一步分析发现，溶解态钨和锰浓度剖面分布一致，且0~30 mm深度沉积物溶解态钨和锰呈显著正相关关系，表明蓝藻降解沉积物中钨的释放主要受到锰的氧化还原控制的影响。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2020-06-18
基金项目：国家重点研发计划(编号：2019YFD0901103)；国家自然科学基金(编号：41701568)。
作者简介：汤亚洲(1995—)，男，安徽安庆人，硕士，主要从事沉积物-水界面污染物的迁移转化及其生态环境效应研究。E-mail：styz78@163.com。
通信作者：陈沐松，博士，助理研究员，主要从事沉积物水界面磷和重金属的迁移转化研究。E-mail：mschen@higlas.ac.cn。
更新日期/Last Update: 2020-11-09