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在洪水排水条件下同时在土中应用草和硫酸盐及其对的流动性的后果

Sang-Gyu Yoon¹, Ihn-Sil Kwak², Ki-Han Song³

¹Department of Smart City Engineering, Hanyang University, Ansan 15588, South Korea.

Journal of environmental sciences (China)

|March 1, 2026

概括

同时将草 (RS) 和硫酸盐应用于土,最初会增加 (As) 的流动性,但在氧化还原振荡下整体降低. 这项研究阐明了农业土壤的动态.

科学领域:

环境科学环境科学
土壤科学土壤科学
地质化学地质化学

背景情况:

在土中的 (As) 流动性受到有机修订和硫酸盐的影响,但在氧化还原振荡下它们的联合作用不太了解.
了解As动态对于管理农业系统中的污染至关重要.

研究的目的:

为了研究同时应用大米 (RS) 和硫酸盐对在重复的氧化还原振荡条件下在土中 (As) 流动性的影响.
通过检查综合效应,提供对As动态的全面理解,与以往专注于单个影响的研究不同.

主要方法:

微观宇宙实验模拟了两个洪水排水周期.
使用温塞尔序列提取方法对As和铁 (Fe) 分割的分析.
检查微生物群落变化与Fe减少有关.

主要成果:

同时的RS和硫酸盐应用增加了降低Fe的微生物,并促进了降低条件,在第一个洪水排水周期中增强了氧化铁溶解和As孔水度.
孔水中的度在RS和硫酸盐应用 (4.320.7 mg/L) 与对照 (0.45.3 mg/L) 相比显著增加.
由于溶解有机碳减少和氧化铁晶度增加,氧化还原振荡降低了As的移动性68%87%.

结论:

RS和硫酸盐的联合应用显著影响了在米土壤中的As流动性,最初增加了它,但随后在氧化还原振荡下减少了它.
调查结果突出了受农业实践和环境因素影响的动态性质.
在现实的农业条件下,为管理土中的As污染提供了宝贵的见解.

关键词:

作为一种移动性.氧化铁的结晶性氧化铁的结晶性微观宇宙是一个微观宇宙.复氧化过渡区的复氧化过渡区减少性溶解是一种减少性溶解.

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