当前位置: X-MOL 学术Bull. Environ. Contam. Toxicol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The Effect of Manure Application on Arsenic Mobilization and Methylation in Different Paddy Soils
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2021-08-18 , DOI: 10.1007/s00128-021-03317-1
Su Yang 1, 2 , Weiwei Zhai 2, 3 , Xianjin Tang 2 , Williamson Gustave 4 , Zhaofeng Yuan 2 , Ting Guo 2 , Yingge Shu 1
Affiliation  

Organic matter plays an important role in controlling arsenic(As) release and transformation in soil, however, little is known about the effect of manure application on As behavior in soils with different As contents. In this study, waterlogged incubations using various As-contaminated paddy soils with manure amendment were conducted to investigate how manure application influence As mobilization and methylation in different paddy soils. The results indicated that manure application increased As release in paddy soils with high As (> 30 mg kg−1) contents. Moreover, our findings also showed that manure application increased the relative abundance of arsM-harboring Euryacheota and Planctomycetes at the phylum level and arsM-harbouring Methanocellaceae, Anaerolinea and Bellinea at genus level, thereby promoting As methylation. These results provide important insights for the significant variation in As mobilization and methylation in paddy soils amended with manure. Moreover, our results suggest that serious consideration should be given to the manure application in As-contaminated paddy soil.



中文翻译:

施肥对不同稻田土壤砷动员和甲基化的影响

有机质在控制土壤中砷(As)的释放和转化中起着重要作用,但关于施肥对不同As含量土壤中As行为的影响知之甚少。在这项研究中,使用各种被砷污染的稻田土壤进行了浸水孵化,以研究施肥对不同稻田土壤中砷的迁移和甲基化的影响。结果表明,施肥增加了高As(> 30 mg kg -1)含量稻田土壤中As的释放。此外,我们的研究结果还表明,施肥增加了携带arsM的EuryacheotaPlanctomycetes在门水平上的相对丰度和arsM - 在属水平上携带甲烷菌科、AnaerolineaBellinea,从而促进 As 甲基化。这些结果为用粪肥改良的稻田土壤中砷的迁移和甲基化的显着变化提供了重要的见解。此外,我们的研究结果表明,应认真考虑在受砷污染的稻田土壤中施肥。

更新日期:2021-08-19
down
wechat
bug