| 吉林省部分河流与湖泊表层沉积物中重金属的分布规律 |
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| 引用本文： | 董德明,路永正,李鱼,李海龙.吉林省部分河流与湖泊表层沉积物中重金属的分布规律[J].吉林大学学报(地球科学版),2005,35(1):91-96. |
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| 作者姓名： | 董德明 路永正 李鱼 李海龙 |
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| 作者单位： | 吉林大学,环境与资源学院,吉林,长春,130023 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 河流的水化学组成具有多样性和易变性,而湖泊水则因其交换缓慢,即使与河流所在地区的气候条件和地球化学条件相似,其化学组成也明显区别于河流,沉积物中重金属的分布也不同.利用形态分析、相关分析和地累积指数法研究了吉林省境内部分河流、湖泊沉积物重金属分布规律.研究结果表明,伊通河和南湖重金属元素生物可利用态含量都很高,存在较大的、潜在的生态危害,Pb、Cu在有机物态中表现出明显的赋存趋势;河流沉积物中Cu、Pb、Zn与pH值显著相关,但湖泊中却相关性不显著.河流沉积物受重金属污染较严重,污染程度最高达到4级,属强污染,湖泊污染程度较轻.
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| 关 键 词： | 河流 湖泊 重金属 赋存形态 地累积指数 吉林省 吉林省 河流 湖泊表层沉积物 重金属 分布规律 Jilin Province Lakes Surface Sediments Heavy Metals 强污染 污染程度 严重 金属污染 相关性 趋势 赋存 表现 物态 生态危害 存在 |
| 文章编号： | 1671-5888(2005)01-0091-06 |
| 修稿时间： | 2004年2月17日 |
The Distribution of Heavy Metals in the Surface Sediments in Parts of Rivers and Lakes in Jilin Province |
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| DONG De-ming,LU Yong-zheng,LI Yu,LI Hai-long.The Distribution of Heavy Metals in the Surface Sediments in Parts of Rivers and Lakes in Jilin Province[J].Journal of Jilin Unviersity:Earth Science Edition,2005,35(1):91-96. |
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| Authors: | DONG De-ming LU Yong-zheng LI Yu LI Hai-long |
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| Abstract: | The water chemical component in rivers is various and unconstant, but it changes slowly in lakes. Even under the similar climatic condition and geochemical condition, the water chemical component of rivers and lakes is different and make the distribution of heavy metals in the sediments different. The distribution of heavy metals in the sediments in parts of rivers and lakes in Jilin Province was studied by the methods of binding form analysis, correlation analysis and geoaccumulation index. The results showed that the amounts of the form of heavy metals available speciations in Yitong River and South Lake is large, and has much higher potential ecological hazards. Pb and Cu mainly accumulated in organic forms, Cu, Pb and Zn are significantly correlated with pH in river sediments, but not in lake sediments. Compare with heavy metals in the sediments of lakes, serious pollution of heavy metals exists in that of rivers, which belongs to stronger pollution according to Geoaccumulation Index. |
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| Keywords: | river lake heavy metals species geoaccumulation index Jilin Province |
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