Spatial patterns and mechanism of the impact of soil salinity on potentially toxic elements in coastal areas
文献类型：期刊论文
| 作者 | Zhou, Mengge3; Li, Yonghua2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-11-15 |
| 卷号 | 951页码:175802 |
| 关键词 | Soil salinity Soil PTEs CatBoost-SHAP MGWR Pb |
| DOI | 10.1016/j.scitotenv.2024.175802 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Soil salinization and heavy metal pollution in the Yellow River Delta region have elicited increasing concern. Therefore, revealing the underlying mechanism of the impact of soil salinity on potential toxic elements (PTEs) is crucial for environmental protection and the rational utilization of resources in this area. In this study, we employed CatBoost-SHAP and multiscale geographically weighted regression (MGWR) models to comprehensively investigate the spatial effects of soil electrical conductivity (EC1:5) 1:5 ) on PTEs. Additionally, we employed a space-for-time substitution strategy with the aim of investigating how increasing soil salinity, represented by EC1:5, 1:5 , K+, + , Na+, + , Ca2+, 2 + , and Mg2+, 2 + , affects the bioavailability of PTEs over time. The primary findings are as follows: (1) for most PTEs, the influence of soil EC 1:5 on the bioavailable forms of these elements surpassed its impact on their total concentrations. (2) The results of the MGWR model indicated that exchangeable Ca (aCa) in the soils of the eastern coastal areas markedly increased the bioavailable Cd (aCd), bioavailable Cu (aCu), and bioavailable Zn (aZn). (3) When the soil EC 1:5 ranges between 2 and 6 dS/m, exchangeable Na (aNa) primarily competed for the adsorption sites of bioavailable Pb (aPb). However, as the soil EC 1:5 increases to 6-10 dS/m, exchangeable Mg (aMg) and aCa became the primary competing ions, with aMg playing a more significant role than aCa. These findings provide valuable theoretical insights and practical guidance for saline-alkali soil improvement and PTEs pollution control in the Yellow River Delta region, thereby providing a foundation for sustainable environmental management and resource utilization. |
| WOS关键词 | HEAVY-METALS ; ORGANIC-MATTER ; INCREASES ; MOBILITY ; CADMIUM ; SPACE ; RISK |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001304320100001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/207968]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Li, Yonghua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Mengge,Li, Yonghua. Spatial patterns and mechanism of the impact of soil salinity on potentially toxic elements in coastal areas[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,951:175802. |
| APA | Zhou, Mengge,&Li, Yonghua.(2024).Spatial patterns and mechanism of the impact of soil salinity on potentially toxic elements in coastal areas.SCIENCE OF THE TOTAL ENVIRONMENT,951,175802. |
| MLA | Zhou, Mengge,et al."Spatial patterns and mechanism of the impact of soil salinity on potentially toxic elements in coastal areas".SCIENCE OF THE TOTAL ENVIRONMENT 951(2024):175802. |
入库方式： OAI收割
来源：地理科学与资源研究所
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