| 新疆焉耆盆地农田土壤重金属环境容量分析 |
| |
| 引用本文： | 安外尔·艾力,麦麦提吐尔逊·艾则孜,靳万贵,李新国.新疆焉耆盆地农田土壤重金属环境容量分析[J].环境工程,2020,38(3):168-173. |
| |
| 作者姓名： | 安外尔·艾力 麦麦提吐尔逊·艾则孜 靳万贵 李新国 |
| |
| 作者单位： | 1. 新疆师范大学 地理科学与旅游学院, 乌鲁木齐 830054; |
| |
| 摘 要： | 为进一步了解土壤环境容量状况，从焉耆盆地采集191个农田土壤样品，测定其中As、Ni、Cr、Cu、Pb、Cd和Zn 7种重金属元素的含量，基于GIS技术，采用综合容量指数法分析农田土壤重金属环境容量特征与空间分布规律。结果表明:1）焉耆盆地农田土壤中As、Cd、Cr、Cu、Ni、Pb与Zn含量平均值均未超出GB 15618—2018《土壤环境质量农用地土壤污染风险管控标准（试行）》中的土壤风险筛选值；2）农田土壤各重金属元素单项环境容量指数平均值由大到小依次为:As、Cr、Ni、Cu、Pb、Cd、Zn。As的环境容量指数处于高容量状态，Ni、Cr、Cu、Pb、Cd、Zn等元素环境容量指数均处于中容量状态；3）研究区7种重金属元素环境容量空间分布情况不同，研究区各容量区土壤面积顺序为:中容量区 > 高容量区 > 低容量区 > 超载区 > 警戒区。该结果可为研究区农田土壤环境保护和管理提供依据。
|
| 关 键 词： | 农田 土壤重金属 环境容量 焉耆盆地 |
| 收稿时间： | 2019-06-28 |
ENVIRONMENTAL CAPACITY OF HEAVY METALS IN FARMLAND SOILS IN YANQI BASIN,XINJIANG |
| |
| ELI Anwar,EZIZ Mamattursun,JIN Wan-gui,LI Xin-guo.ENVIRONMENTAL CAPACITY OF HEAVY METALS IN FARMLAND SOILS IN YANQI BASIN,XINJIANG[J].Environmental Engineering,2020,38(3):168-173. |
| |
| Authors: | ELI Anwar EZIZ Mamattursun JIN Wan-gui LI Xin-guo |
| |
| Affiliation: | 1. College of Geographical Science and Tourism, Xinjiang Normal University, Urumqi 830054, China;2. Xinjiang Laboratory of Lake Resources and Environment in Arid Zone, Xinjiang Normal University, Urumqi 830054, China |
| |
| Abstract: | For the further understanding of soil environmental capacity, a total of 191 farmland soil samples were collected from Yanqi Basin, and the concentrations of seven heavy metals (As, Cd, Cr, Cu, Ni, Pb and Zn) were identified. The characteristics and spatial distribution of heavy metal environmental capacity of farmland soils were analyzed based on GIS technology and the comprehensive capacity index. Results showed that: 1) the average concentrations of As, Cd, Cr, Cu, Ni, Pb and Zn in farmland soils in Yanqi Basin was under the limits of the risk values of National Standard of Agricultural Land Contamination (GB 15618—2018); 2) the average values of single environmental capacity index of heavy metals in farmland soils were ranked as: As > Cr > Ni > Cu > Pb > Cd > Zn. The environmental capacity of As was classified into the high capacity level, while Ni, Cr, Cu, Pb, Cd, and Zn into the medium capacity level; 3) the spatial distribution patterns of environmental capacity of seven heavy metals were different. The proportion of areas with different capacity was ranked as: medium capacity area > high capacity area > low capacity area > super capacity area > warning capacity area. Results of this study will provide scientific basis for protection and management of agricultural soil environmental quality in similar area. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境工程》浏览原始摘要信息 |
|
点击此处可从《环境工程》下载全文 |
|
