[1]文帮勇,张涛亮,谢振东.赣南大余地区农田土壤As、Cd元素化学形态含量分析[J].资源调查与环境,2015,36(04):298-305.
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赣南大余地区农田土壤As、Cd元素化学形态含量分析(
)
《资源调查与环境》[ISSN:2096-1871/CN:32-1865/P]
- 卷:
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36
- 期数:
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2015年04期
- 页码:
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298-305
- 栏目:
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环境地质
- 出版日期:
-
2015-12-15
文章信息/Info
- 作者:
-
文帮勇; 张涛亮; 谢振东
-
(江西省地质调查研究院, 南昌 330030)
- Keywords:
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As ; Cd; farmland soil; Dayu ; outhern Jiangxi Province
- 分类号:
-
X14
- 摘要:
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土壤As、Cd元素化学形态含量土壤中As、Cd元素形态含量特征。土壤残渣态离子交换态%；异常区表层土壤As、Cd的活动态为。
- Abstract:
-
Content, vertical exchange, correlation of total content and speciation content were determined by geochemical speciation analysis of As and Cd in farmland soil in Dayu County , Jiangxi Province. The results showed that the contents of residual As and ion exchange Cd were 22.14mg/kg and 0.437mg/kg, which accounted for 76.88% and 54.97%, respectively. The percentage of mobile As and Cd of in abnormal topsoil were 4.03% and 70.29%, 1.55 and 0.61 times higher than that of the controlled areas, respectively. The contents of As and Cd in the farmland soils affected by sewage irrigation or flood had the characteristics of vertical distribution existed as significant enrichment in topsoil of 0~20cm, varying degrees of decline under 20cm.With the increase of As and Cd in topsoil, the percentage content of the residual As and ion exchange Cd increased, while the other speciation contents decreased or with no significant change
更新日期/Last Update:
2015-12-30