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草回收通过加速铁循环来增强的激活,从而在排水过程中在土中加速基的产生

Hui Huang¹, Zhuoqi Tian¹, Di Guo²

¹College of Ecology and Environment and Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.

The Science of the total environment

|March 7, 2024

概括

回收大米 (RS) 会增加基基 (OH),提高 (Cd) 在土中的生物可用性. 这项研究揭示了生物地化学机制,突出了草回收对土壤安全的潜在风险.

科学领域:

环境科学环境科学
土壤科学土壤科学
生物地质化学生物地质化学

背景情况:

返回草是一种常见的农业实践,可以增加 (Cd) 在土中的生物可用性.
这种现象背后的确切生物地质化学机制尚不清楚.

研究的目的:

阐明草 (RS) 返回影响土中的 (Cd) 生物可用性的机制.
研究铁 (Fe) 矿物和基 (OH) 在Cd激活中的作用.

主要方法:

进行了微观宇宙化实验.
使用光谱和显微分析来检查土壤特性和矿物转化.
进行了基基 (OH) 和可提取 (Cd) 的量化.

主要成果:

草 (RS) 返回增加的无形和低晶体Fe (II),促进基 (OH) 生产和提高Cd的可用性.
添加RS增加了OH和可提取的Cd分别增加了0.2-1.4和0.1-3.3倍.
RS增强了FeS的氧化率,由于OH增加了69.2%,土壤Cd激活率增加了高达38.5%.
碳酸盐 (CO3^2-) 存在通过提高Fe (II) 反应性,显著提高OH生产和Cd激活.

结论:

米 (RS) 回归的衍生基 (OH) 构成活化土壤 (Cd) 的风险.
这项研究为控制米土壤中Cd生物可用性的生物地化学过程提供了新的见解.
这些发现对于评估农业中吸管回收实践的安全性至关重要.

关键词:

生物可用性生物可用性 Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd Cd 在线播放在线播放在线播放在线播放食品安全食品安全自由激进分子的自由激进分子回归的草回归的草

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