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Quan T Dang¹, Anh T Q Nguyen², Anh D Nguyen³

¹Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Viet Nam; Institute of Geography, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Viet Nam.

|November 28, 2023

概括

米的分解将 (As) 循环回收到土中. 微观结构和微生物活动影响As释放,有可能与草颗粒共同运输,影响食品安全.

科学领域:

农业科学农业科学
环境科学环境科学
生物地质化学生物地质化学

背景情况:

(As) 在大米中的积累对人类健康构成风险.
将大米草返回土壤是常见的,但可回收As.
了解草分解中的命运对米生态系统至关重要.

研究的目的:

调查米的微观结构和分解过程中A的释放之间的联系.
确定有机和二氧化成分在动员中的作用.
评估微生物修改对循环的影响.

主要方法:

30天的批量实验分析了大米的分解.
米的微观结构 (有机和/植物元素) 的表征.
监测As和相关元素释放 (Fe,Al,P,S) 的情况.

主要成果:

米含有高达6.48毫克作为Kg-1在一个复合有机结构.
因为释放取决于有机分解和二氧化溶解.
微生物修改 (Trichoderma harzianum,Bacillus velezensis) 意外减少作为释放,可能通过改变溶液化学或沉物形成.
分解导致微型吸管颗粒,可以共同运输As.

结论:

米的微观结构决定了分解过程中的As释放动态.
微生物活动可以以复杂的方式影响As的移动性,并不总是增加释放.
微型草颗粒和As的共同运输是田As循环中的一个重要因素,需要考虑.

关键词:

亚是一种.这种病原体是Bacillus velezensis.分解分解是指分解.米草的米草是一个很好的选择.三皮虫 (Trichoderma harzianum) 是一种有毒的动物.

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