| Issue |
E3S Web Conf.
Volume 617, 2025
2024 International Conference on Environment Engineering, Urban Planning and Design (EEUPD 2024)
|
|
|---|---|---|
| Article Number | 01025 | |
| Number of page(s) | 4 | |
| Section | Multi-dimensional Study on Ecological Environment and Resource Utilisation | |
| DOI | https://doi.org/10.1051/e3sconf/202561701025 | |
| Published online | 21 February 2025 | |
BCF Better Reflects the Bioavailability of Selenium in the Soil of the Northeastern Guanzhong Plain Compared to MF
1 Xi’an Center of Geology and Mineral Resources Survey, China Geological Survey, Xi’an 710100, Shaanxi, China
2 Xi’an Center of Geological Survey, China Geological Survey, Xi’an 710054, Shaanxi, China
* Corresponding author: 125286220@qq.com
A large area of selenium-rich soil has been identified in the Guanzhong Plain; however, the bioavailability of selenium remains poorly understood, which poses significant challenges to the development and utilization of these resources. This study investigates selenium bioavailability by focusing on surface soils, wheat grains, and rhizosphere soils in the northeastern Guanzhong Plain. The results reveal that the average selenium content in surface soil exceeds the background levels for both the Guanzhong Plain and China. Humic acid-bound selenium and strongly organically bound selenium are the predominant forms in rhizosphere soil. The bioconcentration factor (BCF) better reflects the bioavailability of selenium in the soil of the northeastern Guanzhong Plain compared to the mobility factor (MF). Moreover, selenium bioavailability in the study area is notably higher than in surrounding regions. These findings offer valuable insights into the sustainable development and efficient utilization of selenium-rich land resources in this region.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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