多层次的物理因素控制了土壤中的释放:对预测的环境命运的影响
Monami Kondo1, Anna Korre2, Takeshi Komai1
1Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aramaki-aza-aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
Journal of environmental management
|January 12, 2024
概括
了解土壤气态元素 (GEM) 排放是至关重要的. 关键的环境因素,如大气压,太阳辐射和土壤湿度,显著影响土壤中的释放.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 大气化学 大气化学
背景情况:
- 人类接触 (Hg) 存在已知的风险.
- 来自土壤的气态元素 (GEM) 排放的驱动因素尚未得到充分研究.
研究的目的:
- 确定影响土壤GEM流量的环境参数.
- 导出环境参数与GEM流量之间的相关性.
主要方法:
- 使用主要组件分析 (PCA),因子分析 (FA) 和结构方程建模 (SEM).
- 分析了来自森林和非森林地区的样本.
- 检查了环境参数与GEM流动之间的相关性.
主要成果:
- 大气压,太阳辐射和土壤水分是非森林地区GEM流动的主要驱动因素.
- 在森林地区,主要因果关系 (例如,大气压) 影响GEM流量超过后续参数 (例如,温度,湿度).
- SEM结果证实了主要和后续因果关系是GEM流动的关键驱动因素.
结论:
- 主要的初级参数 (大气压,太阳辐射,土壤湿度) 预测土壤中的释放.
- 随之而来的参数 (空气/土壤温度,大气湿度) 也很重要.
- 监测这些环境参数有助于估计土壤-空气Hg交换和释放.
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