| 宜宾市某茶园土壤潜在毒性元素污染评价及源解析 |
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| 引用本文： | 程强强,王哲,易发成,孙卿,张怡萍,蒋虎,王成霞. 宜宾市某茶园土壤潜在毒性元素污染评价及源解析[J]. 中国农学通报, 2021, 37(18): 75-84. DOI: 10.11924/j.issn.1000-6850.casb2020-0387 |
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| 作者姓名： | 程强强 王哲 易发成 孙卿 张怡萍 蒋虎 王成霞 |
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| 作者单位： | 1.西南科技大学环境与资源学院,四川绵阳 621010;2.固体废物处理与资源化教育部重点实验室,四川绵阳 621010;3.中国科学技术大学地球和空间科学学院,合肥 230026 |
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| 基金项目： | 国家重点研发计划项目“西南典型有色金属选冶渣场及影响区分级分区综合防治技术体系研发及模式构建”(2019YFC1803500);国家重点研发计划项目“有色金属选冶渣场影响区污染风险评估与信息管理平台”(2019YFC1803504);四川省科技厅重点研发项目“基于固废资源化利用的农田土壤重金属复合污染钝化剂开发、钝化修复机理及效果示范研究”(2018SZ0298);干热河谷特色生物资源开发四川省高校重点实验室开放基金项目“攀枝花干热河谷区芒果土壤重金属污染评价及原位钝化修复研究”(GR-2020-E-02);攀枝花市科技计划项目“攀枝花市芒果主产区土壤重金属污染评价及其动态监测系统建立”(2017CY-N-8);西南科技大学龙山人才科研计划项目“土壤重金属污染评价与修复”(17LZX613);西南科技大学龙山人才科研计划项目“土壤重金属污染评价与修复”(18LZX638) |
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| 摘 要： | 为更好的揭示宜宾市屏山县某茶园土壤PTEs污染现状与来源,通过对研究区样品采集和检测分析,利用内梅罗指数、地积累指数和潜在生态风险指数对茶园土壤中7种潜在毒性元素(PTEs)(Cd、As、Cr、Cu、Pb、Ni和Zn)进行了污染评价,并以多元统计与空间分析相结合的手段对其进行了溯源分析.结果 表明:茶园土壤中7种PTE...
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| 关 键 词： | 茶园 潜在毒性元素 内梅罗指数 地积累指数 潜在生态风险指数 多元分析 空间分析 |
| 收稿时间： | 2020-08-21 |
Evaluation and Source Analysis of Soil Potential Toxic Elements Pollution in Tea Garden in Yibin City |
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| Cheng Qiangqiang,Wang Zhe,Yi Facheng,Sun Qing,Zhang Yiping,Jiang Hu,Wang Chengxia. Evaluation and Source Analysis of Soil Potential Toxic Elements Pollution in Tea Garden in Yibin City[J]. Chinese Agricultural Science Bulletin, 2021, 37(18): 75-84. DOI: 10.11924/j.issn.1000-6850.casb2020-0387 |
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| Authors: | Cheng Qiangqiang Wang Zhe Yi Facheng Sun Qing Zhang Yiping Jiang Hu Wang Chengxia |
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| Affiliation: | 1.College of Environment and Resources, Southwest University of Science and Technology, Mianyang Sichuan 621010;2.Key Laboratory of Solid Waste Treatment and Recycling, Ministry of Education, Mianyang Sichuan 621010;3.School of Earth and Space Science, University of Science and Technology of China, Hefei 230026 |
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| Abstract: | To reveal the current status and source of PTEs pollution in tea garden soil in Pingshan County, Yibin City, through the collection and detection of samples, the pollution assessment of 7 potentially toxic elements (PTEs) (Cd, As, Cr, Cu, Pb, Zn, Ni) was carried out by using the Nemerow index, geo-accumulation index and potential ecological risk index, and the source analysis was conducted by multivariate statistics and spatial analysis. The results showed that among the concentrations of the 7 PTEs, only Cd exceeded the screening value of agricultural land in the tea garden soil. Compared with the soil background value in Sichuan Province, the Cd over-standard rate was 88.45 times, and the average value of Nemerow pollution index, geo-accumulated pollution index and comprehensive potential ecological pollution risk index was 7.65, 3.38 and 1262.06 respectively, indicating that tea garden soil was seriously polluted, and the potentially ecological risk was high. Multivariate statistics and pollution spatial analysis showed that the enrichment of Cd, Cr, Ni and Zn might be caused by pyrite mining; Pb was mainly caused by the large-scale use of coal in the mining and smelting of pyrite. In addition to burning coal, As was also related to the use of fertilizers; the early generation of the paper mills along the Xiaolongxi caused Cu enrichment in the river and acidification of the surrounding soil in the study area. The spatial distribution characteristics of PTEs pollution indicated that Cd was the main source of risk, which had a controlling effect on PTEs pollution in tea garden soil in Yibin. |
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| Keywords: | tea plantations potentially toxic elements Nemerow index geo-accumulation index potential ecological risk index multivariate analysis spatial analysis |
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