| 浙江临安东部地区土壤硒分布特征及影响因素 |
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| 作者姓名： | 刘道荣 李飞 郑基滋 张果 侯建国 占玄 |
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| 作者单位： | 中化地质矿山总局浙江地质勘查院,杭州,310002;杭州市国土资源局临安分局,杭州,311300 |
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| 基金项目： | 中化地质矿山总局土地质量调查与污染防治团队建设计划;地质调查项目 |
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| 摘 要： | 对浙江临安东部地区表层土壤进行地质调查,发现了大面积富硒土壤,并总结了表层土壤硒的分布特征及影响因素。研究区表层土壤硒含量平均值为0.38×10-6;不同土壤类型硒含量差异较大,其中黄壤硒含量最高,平均值为0.58×10-6。概率累积曲线表明,土壤硒主要来源于自然背景,受外源输入组分影响较小。土壤硒含量与V、Mo、Ni、Cr含量呈显著正相关,与有机质关系密切,与pH值相关性较好。荷塘组碳质页岩、硅质岩和宁国组碳质页岩是该区富硒土壤的主要来源。
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| 关 键 词： | 富硒土壤 分布特征 影响因素 临安东部 浙江 |
| 收稿时间： | 2019-01-23 |
| 修稿时间： | 2019-04-22 |
Distribution characteristics and influencing factors of selenium in soils in eastern Lin’an,Zhejiang Province |
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| Authors: | LIU Dao-rong LI Fei ZHENG Ji-zi ZHANG Guo HOU Jian-guo ZHAN Xuan |
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| Institution: | (1. Zhejiang Geological Prospecting Institute of China Chemical Geology and Mine Bureau,Hangzhou 310002,China; 2. Lin’an Branch of Hangzhou Land and Resources Bureau, Hangzhou 311300,China) |
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| Abstract: | Based on the investigation and study of surface soil in eastern Lin’an area, Zhejiang Province, a piece of large-scale selenium-rich soils were discovered, and the distribution characteristics of selenium and influencing factors were summarized. The mean selenium content of surface soil in the study area is 0.38×10-6, and selenium contents vary obviously with different soil types. Among them, the selenium content of the yellow soil is the highest, with an average of 0.58×10-6. The probability accumulation diagram shows that the exogenous input components have little influence on soil selenium. The selenium contents of soil present a positive relation to the contents of V, Mo, Ni and Cr, and closely related to organic matters and soil pH values. The carbonaceous shale and siliceous rock of the Hetang Formation and carbonaceous shale of the Ningguo Formation are the important sources for selenium in the soils in the study area. |
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| Keywords: | selenium-rich soil distribution characteristics influence factors Eastern lin’an area Zhejiang Province |
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