| 江西信丰油山地区土壤硒及重金属元素地球化学特征 |
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| 作者姓名： | 王运 邹勇军 王鹤 汪成钵 |
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| 作者单位： | 江西省煤田地质勘察研究院,南昌,330001;江西省煤田地质勘察研究院,南昌,330001;江西省煤田地质勘察研究院,南昌,330001;江西省煤田地质勘察研究院,南昌,330001 |
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| 基金项目： | 中国地质调查局“海峡西岸经济区土地质量地球化学调查 |
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| 摘 要： | 为研究江西信丰油山地区绿色富硒土壤的分布特征,进一步指导当地耕种,提高农作物质量,通过在油山地区采集1277件表层土壤样,选取典型土壤横向和纵向剖面,研究该区土壤Se及重金属元素的地球化学特征。油山地区绿色富硒土壤主要分布于西部震旦系;横向上,沿河水流动方向,土壤中的Se、As、Cr、Ni和Cu含量逐渐降低,Se与As、Cr、Ni、Cu呈显著正相关;垂向上,土壤中的Se与重金属元素在地表富集,Se仅与As呈显著正相关;土壤Se与重金属元素来源于震旦纪坝里组黑色碳质板岩,随水共同迁移,富集于母岩近区及河流汇集区。
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| 关 键 词： | 土壤地球化学 硒 重金属元素 江西油山 |
Geochemical characteristics of Se and heavy metal elements in the soil of Youshan,Xinfeng County,Jiangxi Province |
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| Authors: | WANG Yun ZOU Yong-jun WANG He WANG Cheng-bo |
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| Institution: | (Jiangxi Institute of Coal Geology for Exploration Research,Nanchang330001, China) |
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| Abstract: | To understand the distribution characteristics of green Se-rich soil in the Youshan area of Xinfeng County, Jiangxing Province, this study carried out a geochemical analysis of Se and heavy metal elements in hope of guiding local cultivation and improving crop quality.A total of1277 soil samples were collected from the typical cross and vertical profiles in the Youshan area.The results show that the green Se-rich soil in the Youshan area occurs mainly in the Sinian System in the western of the study area.Horizontally, the contents of Se, As, Cr, Ni and Cu in soils decrease gradually along the direction of the river;vertically, contents of Se and heavy metal elements in soils are enriched on the surface, with a positive relationship between Se and As.Se and heavy metal elements in soils originate from black carbonaceous slate of the Sinian Bali Formation and are accumulated near the parental rocks and convergent areas between rivers with migration of water. |
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| Keywords: | soil geochemistry Se heavy metal elements Youshan Jiangxi |
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