鄱阳湖流域沉积物中重金属元素分布特征及生态风险浅析

曹佰迪; 李文明; 周一凡; 杨忠芳

doi:10.19751/j.cnki.61-1149/p.2022.04.028

鄱阳湖流域沉积物中重金属元素分布特征及生态风险浅析

1. 中国地质调查局西安地质调查中心/西北地质科技创新中心, 陕西西安 710054;
2. 西安勘察测绘院地理信息中心, 陕西西安 710054;
3. 中国地质大学地球科学与资源学院, 北京 100083

基金项目:

中国地质调查局项目"黄河中上游生态地质调查"(DD20221774)资助。

详细信息

作者简介:
曹佰迪(1983-)，女，硕士，构造地质学专业。E-mail：251929268@qq.com。

通讯作者:
李文明(1984-)，男，高级工程师，从事生态环境地质调查工作。E-mail：283547675@qq.com。

中图分类号: P618.14
计量
- 文章访问数: 67
- HTML全文浏览量: 5
- PDF下载量: 36
出版历程
- 收稿日期: 2021-12-12
- 修回日期: 2022-09-06
- 网络出版日期: 2023-01-09

Geochemical Characteristic and Fluxes of Trace Metal in Water System of the Poyang Lake

1. Xi'an Center of China Geological Survey/Northwest China Center for Geoscience Innovation, Xi'an 710054, Shaanxi, China;
2. Geographic Information Center of Xi'an Survey and Mapping Institute, Xi'an 710054, Shaanxi, China;
3. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China

摘要

摘要: 近年来，随着经济改革和工业化发展，直接或间接排入湖泊的污染物越来越多，由此带来的环境问题日渐突出，笔者以鄱阳湖流域为研究区，采集了鄱阳湖水系各支流枯水期(12～1月)沉积物样品，查明了鄱阳湖水系各支流沉积物中重金属元素的含量、分布、形态构成，分析了重金属元素在鄱阳湖水系河流水体中的迁移和转化的影响因素，并应用地质累积指数法和潜在生态危害指数法对重金属污染进行了评价。研究结果表明：鄱阳湖流域河流沉积物中重金属污染程度的大小为Cd＞Cu＞As＞Zn＞Pb，各重金属对鄱阳湖生态风险构成危害的排列次序为Cd＞As＞Cu＞Pb＞Zn。
- 鄱阳湖水系 /
- 地质累积指数法 /
- 潜在生态危害指数法 /
- 沉积物
Abstract: In recent years, with the economic reform and industrial development, more and more pollutants are directly or indirectly discharged into the lake, and the resulting environmental problems are becoming increasingly prominent. In this paper, taking the Poyang Lake basin as the research area, we collected sediment samples from various tributaries of the Poyang Lake water system during the dry season(December January), and found out the content, distribution, form and composition of heavy metals in the sediments of various tributaries of the Poyang Lake water system, This paper analyzes the influencing factors of migration and transformation of heavy metals in Poyang Lake water system, and evaluates the heavy metal pollution by using the geological cumulative index method and the potential ecological hazard index method. The results show that the pollution degree of heavy metals in river sediments of Poyang Lake basin is Cd＞Cu＞As＞Zn＞Pb, and the order of hazard of heavy metals to ecological risk of Poyang Lake is Cd＞As＞Cu＞Pb＞Zn.
- Poyang lake water system /
- geo-accumulation index /
- potential ecological risk index /
- sediment

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