Spatial Distribution and Migration Mechanisms of Toxic Elements in Farmland Soil at Nonferrous Metal Smelting Site
文献类型：期刊论文
| 作者 | Shi, Buxing1,6; Cai, Kui1; Yan, Xiulan5; Liu, Zhaoshu5; Zhang, Qian4; Du, Jun; Yang, Xiao5; Luan, Wenlou3 |
| 刊名 | WATER
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 15期号:12页码:2211 |
| 关键词 | nonferrous metal smelting toxic elements clay minerals geographical detector positive matrix factorization |
| DOI | 10.3390/w15122211 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Nonferrous metal smelting is a potential emission source of trace elements. However, it is vital to identify the dominant factors in determining toxic element (TE) spatial distribution and migration behaviors. We hypothesize that soil clay is the key factor in agricultural land around nonferrous metal smelting areas. Hence, this study focused on Qingyuan Town, a typical nonferrous metal smelting base. From this site, 95 soil samples (0-20 cm) were collected from cultivated land around the nonferrous metal smelters. Eight soil samples were analyzed for TE speciation and clay minerals in hot spot and non-hot spot areas following the TE distribution. A geographical detector (Geodor) showed that the distributions of total and exchangeable TE were affected by multiple factors (clay, CaO, and Fe2O3). X-ray diffraction (XRD) showed that the clay was mainly comprised of an illite and smectite mixed layer (67.13%), illite (15.38%), chlorite (9.25%), and kaolinite (8.25%). Moreover, correlation analysis showed that the exchangeable As was positively correlated with illite (R-2 = 0.76, at p < 0.01 level), kaolinite (R-2 = 0.43, at p < 0.01 level), and chlorite (R-2 = 0.59, at p < 0.01 level) in the hot spot, but negatively correlated with a mixed layer of illite and smectite (R-2 = 0.83, at p < 0.01 level). In contrast, the cases of Cd, Cu, Pb, and Zn presented an opposite tread with As. The positive matrix factorization (PMF) results showed that the contribution rate of nonferrous metal smelting to soil As was 42.90% and those of Cd, Cu, Pb, and Zn were 84.90%, 56.40%, 59.90%, and 59.20%, respectively. These results can provide guidance for controlling the TE risk associated with agricultural land management. |
| WOS关键词 | ARSENIC-CONTAMINATED SOILS ; HEAVY-METALS ; IN-SITU ; AQUEOUS-SOLUTIONS ; LIME ; RISK ; ACCUMULATION ; REMEDIATION ; PHOSPHORUS ; CADMIUM |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| WOS记录号 | WOS:001015944700001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194393]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Hebei GEO Univ, Hebei Key Lab Strateg Crit Mineral Resources, Shijiazhuang 050031, Peoples R China 2.Hebei GEO Univ, Inst Resource & Environm Engn, Shijiazhuang 050031, Peoples R China 3.Hydrogeol & Engn Geol Explorat Inst Hebei Prov, Shijiazhuang 050000, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 5.China North Ind Norengeo Ltd, Shijiazhuang 050011, Peoples R China 6.Hebei GEO Univ, Inst Geol Survey, Shijiazhuang 050031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Buxing,Cai, Kui,Yan, Xiulan,et al. Spatial Distribution and Migration Mechanisms of Toxic Elements in Farmland Soil at Nonferrous Metal Smelting Site[J]. WATER,2023,15(12):2211. |
| APA | Shi, Buxing.,Cai, Kui.,Yan, Xiulan.,Liu, Zhaoshu.,Zhang, Qian.,...&Luan, Wenlou.(2023).Spatial Distribution and Migration Mechanisms of Toxic Elements in Farmland Soil at Nonferrous Metal Smelting Site.WATER,15(12),2211. |
| MLA | Shi, Buxing,et al."Spatial Distribution and Migration Mechanisms of Toxic Elements in Farmland Soil at Nonferrous Metal Smelting Site".WATER 15.12(2023):2211. |
入库方式： OAI收割
来源：地理科学与资源研究所
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