| 张峻基,施泽明,廖容,王钰,王新宇.成都平原西缘典型水稻土壤风险元素及磷、硒来源解析与评价[J].农业环境科学学报,2023,42(2):327-338. |
| 成都平原西缘典型水稻土壤风险元素及磷、硒来源解析与评价 |
| Source apportionment and evaluation of potentially toxic elements, P and Se, for paddy soils in the western margin of Chengdu Plain, China |
| 投稿时间：2022-03-24 |
| DOI：10.11654/jaes.2022-0280 |
| 中文关键词: 水稻土壤 风险元素 重金属污染 源解析 风险评价 |
| 英文关键词: paddy soil potentially toxic elements heavy metal contamination source apportionment risk evaluation |
| 基金项目:四川省自然资源厅项目（KJ-2019-3） |
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| 中文摘要: |
| 为探究成都平原水稻土壤风险元素来源及其风险性，本研究以成都平原西缘某地0~20 cm的水稻土壤为研究对象，以土壤中Ni、Cr、Cu、Pb、Zn、As、Cd、Hg、P、Se这10种元素作为研究要素，借助统计学描述分析、聚类分析、主成分分析和GIS方法对10种元素的主要来源进行解析，并对其中8种重金属元素的污染风险进行评价。结果显示，研究区水稻土壤中Ni、Cr、Cu没有表现出明显的富集特征，Pb、Zn、As趋向于富集，Cd、Hg、P、Se有明显的富集现象。研究区人为活动影响较强的区域主要分布于I河至J河一带和L河沿岸地区。研究区内Cu、Cr、Ni、Se主要来源于成土母岩，Pb、As受磷石膏堆影响，Hg、P受居民生活废弃物影响，Zn、Cd受控于当地化工企业活动。研究区农耕土壤受Cd胁迫，内梅罗综合污染指数为1.20，达到轻度污染程度。 |
| 英文摘要: |
| An experment was conducted to investigate the effects of risk elements on rice soils in Chengdu Plain. Soils were collected at depths of 0 to 20 cm on the western margin of the Chengdu Plain. The sources of Ni, Cr, Cu, Pb, Zn, As, Cd, Hg, P, and Se in paddy soils were studied using statistical descriptive analysis, cluster analysis, principal component analysis, and GIS methods, and the ecological risks posed by heavy metals were evaluated. The results showed that Ni, Cr, and Cu were not enriched. Pb, Zn, and As were enriched, along with Cd, Hg, P, and Se. The area that was strongly influenced by human activities was mainly distributed between Rivers I and J and along River L. The Cu, Cr, Ni, and Se were mainly from the parent rock. Phosphogypsum influenced Pb and As. Hg and P were influenced by residential waste. Zn and Cd levels were controlled by chemical activities. Due to the influence of the high Cd content in cultivated soils, the Nemerow pollution index was 1.20, indicating that the pollution level of soils was mild. |
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