| Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area | |
Jinfeng Wang; Xiaoyong Bai ; Fang Liu; Jian Zhang; Fei Chen; Qian Lu
| |
| 2019 | |
| 发表期刊 | International Journal Of Environmental Research And Public Health
 |
| 卷号 | 16期号:23页码:1-13 |
| 摘要 | An understanding of the enrichment mechanisms of cadmium (Cd) and arsenic (As) in the
process of rock weathering and soil formation is essential to develop agriculture according to local
conditions. However, the enrichments of soil Cd and As under natural background conditions in
karst areas are still uncertain. The enrichment factor, geo-accumulation index, redundancy analysis,
and other methods were used to analyze the enrichment degree and the inflfluencing factors of Cd
and As on 5 rock–soil profifiles and 15 topsoil samples, which were collected from a karst forest area
in Libo County, Guizhou Province. The results showed that the enrichment process was divided
into three stages. In the fifirst stage, Cd and As were enriched in carbonate rocks, and their mean
concentrations were 1.65 and 3.9 times those of the corresponding abundance of the crust. In the
second stage, the enrichment of the parent rock into the soil, the enrichment factors of Cd and As in
the parent material horizon relative to the bedrock horizon were 9.2 and 2.82, respectively. The third
stage refers to the enrichments of Cd and As in the topsoil, where Cd enrichment was more obvious
than that of As. Soil organic matter (SOM) and phosphorus (P) are important factors that inflfluenced
the enrichments of Cd and As in the topsoil. The functional groups of SOM were complexed with Cd
and As; P easily formed precipitates with Cd, and the tree litter was fed back to the topsoil, which may
be the reason for the surface enrichment of Cd and As. This study will help the scientifific community
understand the enrichment mechanisms of soil Cd and As in karst areas. |
| 关键词 | Cadmium Arsenic Physicochemical Properties Of Soil Correlation Analysis Karst Forest Area |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.gyig.ac.cn/handle/42920512-1/10149 |
| 专题 | 环境地球化学国家重点实验室 |
| 作者单位 | 1.College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025 2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China 3.School of Tourism, Historical Culture, Liupanshui Normal University, Liupanshui 553004, China 4.Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, China |
| 推荐引用方式 GB/T 7714 | Jinfeng Wang,Xiaoyong Bai,Fang Liu,et al. Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area[J]. International Journal Of Environmental Research And Public Health,2019,16(23):1-13. |
| APA | Jinfeng Wang,Xiaoyong Bai,Fang Liu,Jian Zhang,Fei Chen,&Qian Lu.(2019).Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area.International Journal Of Environmental Research And Public Health,16(23),1-13. |
| MLA | Jinfeng Wang,et al."Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area".International Journal Of Environmental Research And Public Health 16.23(2019):1-13. |
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