西南典型喀斯特高原湖滨湿地土地利用转化对表层土壤重金属污染的影响[J].,International Journal of Environmental Research and Public Health

当前位置： X-MOL 学术 › Int. J. Environ. Res. Public Health › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

西南典型喀斯特高原湖滨湿地土地利用转化对表层土壤重金属污染的影响[J].
International Journal of Environmental Research and Public Health Pub Date : 2019-12-20 , DOI: 10.3390/ijerph17010084
Caili Sun _{1,

2} , Sixi Zhu _{1,

2} , Bin Zhao _{1,

2} , Wujiang Li _{1,

2} , Xiaoye Gao ₁ , Xiaodan Wang ₁

Affiliation

土地利用转化可以通过改变土壤特性直接或间接影响重金属地球化学。本研究旨在探讨土地利用转换对西南喀斯特高原湖滨湿地表层土壤重金属污染的影响。以此为基础，2017年8月在索黄仓国家湿地公园某湖泊周围不同土地利用类型（农田、草地和林地）的30个地点共采集了120份土壤样品。对 Hg、Pb 和 Zn 进行了分析，并对所有三种土地利用类型的土壤重金属污染进行了评估。结果表明，从农田向草地或林地转变的土地利用方式不利于土壤重金属的释放。三种土地利用类型的表层土壤均受到 As、Cr、Pb、和 Zn，草地和林地也有中度 Cd 污染。污染负荷指数（PLI）结果显示草地和林地重金属污染较低，但农田没有污染。虽然研究区域的综合污染没有造成严重的潜在生态风险（RI < 150），但它可能通过供水和食物链影响人类健康。因此，有必要通过控制污染物、改进废物处理以及加强对索黄仓国家湿地公园周边地区的监督管理来监测和控制表层土壤中As、Cd、Cr、Pb和Zn的浓度。污染负荷指数（PLI）结果显示草地和林地重金属污染较低，但农田没有污染。虽然研究区域的综合污染没有造成严重的潜在生态风险（RI < 150），但它可能通过供水和食物链影响人类健康。因此，有必要通过控制污染物、改进废物处理以及加强对索黄仓国家湿地公园周边地区的监督管理来监测和控制表层土壤中As、Cd、Cr、Pb和Zn的浓度。污染负荷指数（PLI）结果显示草地和林地重金属污染较低，但农田没有污染。虽然研究区域的综合污染没有造成严重的潜在生态风险（RI < 150），但它可能通过供水和食物链影响人类健康。因此，有必要通过控制污染物、改进废物处理以及加强对索黄仓国家湿地公园周边地区的监督管理来监测和控制表层土壤中As、Cd、Cr、Pb和Zn的浓度。

"点击查看英文标题和摘要"

Effect of Land Use Conversion on Surface Soil Heavy Metal Contamination in a Typical Karst Plateau Lakeshore Wetland of Southwest China.

Land use conversion could directly or indirectly influence heavy metal geochemistry by changing soil properties. The aim of this study was to explore the effect of land use conversion on surface soil heavy metal contamination in the karst plateau lakeshore wetlands of Southwest China. Based on this, a total of 120 soil samples were collected from 30 sites from different types of land uses (farmlands, grasslands and woodlands) around a lake in Suohuangcang National Wetland Park in August 2017. Contents of As, Cd, Cu, Cr, Hg, Pb and Zn were analyzed, and soil heavy metal contamination was assessed in all three land use types. Results showed that land use transformation from farmland to grassland or woodland was not conducive to the release of soil heavy metal. Surface soil of all three land use types have been moderately polluted by As, Cr, Pb, and Zn, and grassland and woodland also had moderate Cd contamination. The pollution load index (PLI) results revealed low heavy metal contamination in grassland and woodland but no contamination in farmland. Although the integrated contamination in the studied region did not pose a serious potential ecological risk (RI < 150), it might affect human health through the water supply and food chain. Therefore, it is necessary to monitor and control As, Cd, Cr, Pb, and Zn concentrations of surface soil through controlling pollutants, improving waste treatment, as well as strengthening supervision and management in the vicinity of the Suohuangcang National Wetland Park.

更新日期：2019-12-20

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南