夜郎湖沙湾河口消落带土壤Pb污染生态危害时空效应  

Spatial Evolution Effect of Pb Pollution in Soils of Water-level-fluctuating Zone in Shawan Estuary of Yelang Lake

作　　者：张晓娟 邹莉 李伟华 张玉涛 Zhang Xiaojuan;Zou Li;Li Weihua;Zhang Yutao(College of Chemistry and Chemical Engineering,Anshun College,Guizhou,561000;Engineering Technology Center of Control and Remediation of Soil Contamination of Provincial Science&Technology Bureau,Guizhou Provincial,Guizhou,561000)

机构地区：[1]安顺学院化学化工学院,贵州561000 [2]贵州省科技厅土壤污染控制与修复工程技术中心,贵州561000

出　　处：《当代化工研究》2020年第12期1-3,共3页Modern Chemical Research

基　　金：贵州省科技厅、安顺市人民政府、安顺学院三方联合基金项目,安顺市饮用水源环境质量调查—以夜郎湖为例,黔科合LH字[2016]7281号;安顺市科技计划项目,夜郎湖沙湾段消落带土壤重金属迁移特征及潜在生态风险评价,安市科社[2018]5号。

摘　　要：本论文分析了夜郎湖沙湾河口不同淹水时间消落带表层土壤粒径分布特征以及Pb在各粒径含量分布,分析了不同淹水时间消落带土壤Pb含量垂直分布特征,评估了Pb污染程度.实验结果表明:不同淹水时间消落带表层土壤粒径分布特征具有一定的规律性,不同淹水时间消落带土壤Pb各粒径含量变化特征不完全相同,但Pb最高含量与最低含量分布的粒径较为集中.不同淹水时间消落带土壤中Pb含量垂直分布特征不同,但不同深度土壤中Pb含量较高,存在不同程度的污染.In the paper,the distribution characteristics of particle size and the distribution of Pb content in different particle sizes in surface soils in the water-level-fluctuating zone of Shawan estuary in Yelang lake were analyzed.The vertical distribution of Pb with depths in soils of different flooding time were studied and the pollution degree of Pb in different depths were evaluated.The results showed that the distribution characteristics of soil particle size in the surface soil in different flooded time zones had some regularity.The distribution of Pb content in different particle sizes in surface soils.However the distribution of maximum and minimum Pb particle size is concentrated.The vertical distribution of Pb with depths were different.However,the Pb content was higher in soil,and was different degrees of pollution.

关 键 词：重金属PB 消落带土壤 淹水时间 夜郎湖 

分 类 号：X[环境科学与工程]