Multivariate statistical analysis of potentially toxic elements in soils under different land uses: Spatial relationship, ecological risk assessment, and source identification
文献类型：期刊论文
| 作者 | He, Yuejun1; Han, Xiaoxiao2; Ge, Jingsong3; Wang, Lingqing2
|
| 刊名 | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
 |
| 出版日期 | 2021-06-04 |
| 页码 | 14 |
| 关键词 | Potentially toxic elements Soil Land use types Source identification Qinghai-Tibet Plateau |
| ISSN号 | 0269-4042 |
| DOI | 10.1007/s10653-021-00992-1 |
| 通讯作者 | Wang, Lingqing(wanglq@igsnrr.ac.cn) |
| 英文摘要 | The Qinghai-Tibet Plateau is one of the most fragile and susceptible areas to climate change and human disturbances in the world. Here, a total of 48 soil samples were obtained from areas of different land uses within a typical basin in eastern Qinghai-Tibet, China. The selected potentially toxic elements (PTEs, including Cd, Cr, Cu, Pb, and Zn) contents were analyzed to explore their spatial patterns, ecological risks, and then the effects of land use types on these elements were assessed by self-organizing map (SOM) and random forest regression (RFR) models, and the main sources were revealed using positive matrix factorization (PMF) model. Results showed that mean concentrations of selected PTEs in surface soils were higher than local background values and those of subsurface soils. The low-degree ecological risk was obtained with comparatively high risks in the north and south of the study area. The results of the SOM and RFR models revealed that land use types affected the redistribution of PTEs in surface soil. The PMF model demonstrated that these PTEs were mainly derived from natural sources (46.7%), traffic emissions (31.2%), and industrial and agricultural inputs (22.1%). Natural sources were the essential contributors for these soil PTEs, especially for Cr. In addition to natural sources, traffic sources made great contributions for Cd, Pb, and Zn elements, while the enrichment of Cu was mainly related to industrial and agricultural activities. |
| WOS关键词 | HEAVY-METAL POLLUTION ; QINGHAI-TIBET PLATEAU ; REMOTE HIGH-MOUNTAIN ; AGRICULTURAL SOILS ; TEMPORAL VARIATION ; SURFACE SOILS ; ROAD DUST ; GIS ; PATTERNS ; URBAN |
| 资助项目 | Major Science and Technology Projects of Qinghai Province[2018-SF-A4] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000658115800001 |
| 出版者 | SPRINGER |
| 资助机构 | Major Science and Technology Projects of Qinghai Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164013]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Lingqing |
| 作者单位 | 1.North China Inst Aerosp Engn, Langfang 065000, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Ecol Environm Planning & Environm Protect Technol, Xining 810007, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Yuejun,Han, Xiaoxiao,Ge, Jingsong,et al. Multivariate statistical analysis of potentially toxic elements in soils under different land uses: Spatial relationship, ecological risk assessment, and source identification[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2021:14. |
| APA | He, Yuejun,Han, Xiaoxiao,Ge, Jingsong,&Wang, Lingqing.(2021).Multivariate statistical analysis of potentially toxic elements in soils under different land uses: Spatial relationship, ecological risk assessment, and source identification.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,14. |
| MLA | He, Yuejun,et al."Multivariate statistical analysis of potentially toxic elements in soils under different land uses: Spatial relationship, ecological risk assessment, and source identification".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH (2021):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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