| 齐杏杏,高秉博,潘瑜春,杨晶,郜允兵.基于地理探测器的土壤重金属污染影响因素分析[J].农业环境科学学报,2019,38(11):2476-2486. |
| 基于地理探测器的土壤重金属污染影响因素分析 |
| Influence factor analysis of heavy metal pollution in large-scale soil based on the geographical detector |
| 投稿时间：2019-05-14 |
| DOI：10.11654/jaes.2019-0537 |
| 中文关键词: 地理探测器 土壤重金属 影响因素 交互作用 |
| 英文关键词: geographical detector soil heavy metal influencing factor interaction |
| 基金项目:国家重点研发计划项目（2016YFD0800903，2017YFD0801205）；北京市优秀人才培养资助项目（2016000020060G123）；北京市农林科学院科技创新能力建设专项（KJCX20170407） |
| 作者 | 单位 | E-mail | | 齐杏杏 | 首都师范大学信息工程学院, 北京 100048 | | | 高秉博 | 国家农业信息化工程技术研究中心, 北京 100097
中国农业大学土地科学与技术学院, 北京 100083 | gaobb@nercita.org.cn | | 潘瑜春 | 首都师范大学信息工程学院, 北京 100048
国家农业信息化工程技术研究中心, 北京 100097
农业农村部农业信息技术重点实验室, 北京 100097 | | | 杨晶 | 国家农业信息化工程技术研究中心, 北京 100097
农业农村部农业信息技术重点实验室, 北京 100097 | | | 郜允兵 | 国家农业信息化工程技术研究中心, 北京 100097
农业农村部农业信息技术重点实验室, 北京 100097 | |
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| 中文摘要: |
| 定量分析全国范围内Cd、Pb、Zn、As、Cu和Cr 6种土壤重金属累积量与影响因素的相关程度。通过描述性统计、地累积指数法分析了污染情况和累积量分布情况，并借助地理探测器，定量地揭示了土壤重金属含量的主要影响因素。结果表明：Cd呈现出大面积的连片污染，Pb、Zn和Cu呈现斑块状污染，As和Cr呈现零星污染。各种重金属的主要影响因素为：Cd与地理区划、海拔高度、地势三大阶梯和土壤类型相关性较强；Pb与地势三大阶梯、气候带类型和土壤类型相关性较强；Zn与海拔高度、地理区划和气候带类型相关性较强；As与气候带类型和土壤类型相关性较强；Cu与海拔高度、气候带类型和土壤类型相关性较强；Cr与土壤类型、东中西经济划分和地理区划相关性较强；全国大尺度上6种土壤重金属含量主要受自然因素主导控制，主要为多因素复合作用影响。通过定量化分析各重金属的影响因素，揭示了全国大尺度上6种土壤重金属含量整体趋势和宏观规律。 |
| 英文摘要: |
| The accumulation and factors influencing soil heavy metal content including Cd, Pb, Zn, As, Cu, and Cr were quantitatively analyzed. By descriptive statistics and geoaccumulation index method, the status and cumulative distribution of heavy metals in soil were revealed, and their main influencing factors were quantitatively measured using geographic detectors. Cd pollutes a large area; Pb, Zn, and Cu pollute a small area; and As and Cr only present scattered pollution. The influencing factors detected are that Cd pollution is related to the administrative division, elevation, terrain, and soil type; Pb pollution is related to terrain, climate type, and soil type; Zn pollution is related to elevation, administrative division, climate type; As pollution is related to climate type and soil type; Cu pollution is related to elevation, climate type, and soil type; and Cr pollution is related to soil type, economic division, and administrative division. The content of six heavy metals in soils are mainly controlled by natural factors and are influenced by multiple combined factors. Quantitative analysis of the factors influencing the heavy metal content in soil reveals the overall trend and macrolaw at the national scale. |
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