Effects of Farming Activities on the Biogeochemistry of Mercury in Rice–Paddy Soil Systems

Tang, Wenli; Su, Yao; Gao, Yuxi; Zhong, Huan

doi:10.1007/s00128-019-02627-9

Cited by 23 publications

(5 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These patterns of enhanced fertilizer use and changing DOM properties have been found in rice patty fields where enhanced sulfurization is changing the biogeochemistry of contaminants like mercury. 48…”

Section: Resultsmentioning

confidence: 99%

Emerging investigator series: impacts of land use on dissolved organic matter quality in agricultural watersheds: a molecular perspective

A.,

T.,

2024

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Emerging investigator series: impacts of land use on dissolved organic matter quality in agricultural watersheds: a molecular perspective

A.,

T.,

2024

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

“…This result indicates that the THg in the area with high Som will also be high, but it will slightly reduce or inhibit the methylation reaction of mercury, resulting in a lower %MeHg. Previous studies have widely mentioned that there is a positive correlation between MeHg concentration in soil and Som content (Meng et al, 2016;Tang et al, 2019;Tomiyasu et al, 2017;Tomiyasu et al, 2020). While, there are also studies Tomiyasu et al, 2017) that Som only indirectly affects the activity of mercury methylation in soil.…”

Section: Effects Of Increasing Subsidence Years On Distribution Of Th...mentioning

confidence: 99%

Distribution and differences of soil mercury and methylmercury affected by coal mining activities

Chen

Zheng

Liu

et al. 2022

Preprint

View full text Add to dashboard Cite

In some coal mining areas, the soil will gradually sink and collapse due to underground gouging and form water areas with rainfall, and the mercury and methylmercury accumulated in the soil will enter the water environment and become potential mercury pollutants source. Therefore, in order to understand the temporal and spatial distribution characteristics of mercury in soil under the influence of coal mining activities, total mercury and methylmercury in the soil of subsidence areas located in Huainan, China with different subsidence years were collected and tested. The results show that longer the subsidence years in the soils of different mining areas, lower the methylmercury and mercury methylation rate. In the same mining area, the methylmercury and mercury methylation in the soil will slowly increase with the subsidence time. The total mercury and methylmercury in cultivated soil around the mining area are only close to half of the uncultivated topsoil. The total mercury in farmland soil is mainly concentrated in the topsoil. At the same time, the total mercury continues to decrease with the increase of soil depth. The methylmercury in different farmland soils has a similar trend of methylmercury with the increase of depth, and all peak at the same depth. We find that the main reason is that soil subsidence affects the distribution of soil particle size in depth and then affects the internal structure of soil. This research can provide reference materials for future research on the methylation reaction of mercury in the bottom sediments of subsidence waters.

show abstract

“…Heavy metal pollution predominantly occurs as compound pollution stemming from many complex sources, often involving more than one metal. Soils are the main sink for contaminants, and heavy metals are highly likely to accumulate in areas of anthropogenic influence, such as areas of agricultural intensification [7,8]. In particular, heavy metals can enter the human body through the soil-crop-food chain [9,10], thereby threatening human health globally.…”

Section: Introductionmentioning

confidence: 99%

The Impacts of Elevated CO2 Levels on Environmental Risk of Heavy Metal Pollution in Agricultural Soils: Applicable Remediation Approaches for Integrated Benefits

et al. 2023

View full text Add to dashboard Cite

Heavy metal pollution in agricultural fields is a serious health concern because of the high bioavailability and persistent toxicity of heavy metals. Much progress has recently been made with respect to elucidating the impacts of climate change (e.g., elevated atmospheric CO2 concentrations) on the environmental behavior of heavy metal pollutants and the associated ecological and health risks. The microbiological responses to elevated CO2 levels are primarily mediated by the C balance in agricultural activities; however, the underlying mechanisms involved in plant–soil–microbe interactions under heavy metal stress are still unclear. Thus, in this study, the challenges and perspectives with regard to controlling heavy metal pollution and optimizing crop yields while reducing greenhouse emissions in agricultural ecosystems responsive to elevated CO2 levels are discussed. Considering the integrated benefits of intensive agriculture and food security under a future changing climate, the summarized findings provided in this study may help to develop applicable remediation approaches for sustainably managing heavy metal polluted soils.

show abstract

Effects of Farming Activities on the Biogeochemistry of Mercury in Rice–Paddy Soil Systems

Cited by 23 publications

References 71 publications

Emerging investigator series: impacts of land use on dissolved organic matter quality in agricultural watersheds: a molecular perspective

Emerging investigator series: impacts of land use on dissolved organic matter quality in agricultural watersheds: a molecular perspective

Distribution and differences of soil mercury and methylmercury affected by coal mining activities

The Impacts of Elevated CO2 Levels on Environmental Risk of Heavy Metal Pollution in Agricultural Soils: Applicable Remediation Approaches for Integrated Benefits

Contact Info

Product

Resources

About