水文设置控制器 水文设置控制器
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Updated: Jul 28, 2025
08:20
In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
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Yasunori Igarashi1, Yuichi Onda2, Koki Matsushita2
1Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima-shi, Fukushima 960-1296, Japan.
The Science of the total environment
|June 4, 2023
概括
切尔诺贝利禁区河流中的放射性核化物度受到水文过程的影响. -90 (90Sr) 含量与水路密切相关,与-137 (137Cs) 不同.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 放射化学 放射化学是指辐射化学.
背景情况:
- 度-排放关系是了解河水化学的关键.
- -137 (137Cs) 和-90 (90Sr) 等放射性核化物是令人担忧的环境污染物.
- 切尔诺贝利排斥区 (ChEZ) 的头水流域提供了一个独特的研究区域,用于对水化学的水文影响.
研究的目的:
- 为了研究水文过程如何影响137Cs和90Sr度在ChEZ头流域的地表水中.
- 为了区分湿地和斜坡水域中的放射性核化物度的水文控制.
- 建立放射性核素水平,排放,水温和水路之间的相关性.
主要方法:
- 在地表水中分析放射性核酸度 (137Cs和90Sr).
- 评估包括排放,土壤和深度和水路在内的水文因素.
- 放射性核酸度与环境变量之间的相关性分析.
主要成果:
- 溶解/悬浮的137Cs与排放或离子之间没有发现显著的相关性,但与水温存在负相关性.
- 地表水中90Sr度与流域特定的水道有着密切的关系.
- 在湿地流域中,90Sr与地表水与土壤接触有关;在斜坡流域中,它与浅水和深水贡献有关.
结论:
- 头部流域的水道显著控制了ChEZ河流中的90Sr度.
- 水文过程对地表水中的137Cs和90Sr进行了差异性控制.
- 需要进一步的研究来阐明特定的吸附/脱附机制,以控制放射性核素的行为.
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