Horizon-specific effects of heavy metal mobility on nitrogen binding forms in forest soils near a historic smelter (Germany)

Hahn, Jens‐Uwe; Mann, Brigitte; Bange, Ulli; Kimmel, Marcel

doi:10.1016/j.geoderma.2019.113895

Cited by 14 publications

(2 citation statements)

References 45 publications

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“…HMs can be transported from mining sites to neighboring agricultural soils through surface runoff and atmospheric dust deposition (Mu et al, 2020). Consequently, most neighboring agricultural soils are contaminated with HMs, and the soil thereafter serves as a long-term sink for HMs (Hahn et al, 2019;Cheng et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Spatial Variation in Microbial Community in Response to As and Pb Contamination in Paddy Soils Near a Pb-Zn Mining Site

Zou¹,

Lu²,

Dai³

et al. 2021

Front. Environ. Sci.

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Mining activity is a growing environmental concern as it contributes to heavy metals (HMs) pollution in agricultural soils. Microbial communities play an important role in the biogeochemical cycling of HMs and have the potential to be used as bioindicators. Arsenic (As) and lead (Pb) are the most hazardous HMs and are mainly originated from mining activities. However, spatial variation in microbial community in response to As and Pb contamination in paddy soils remains overlooked. In this study, the biological and chemical properties of sixteen soil samples from four sites (N01, N02, N03, and N04) near a Pb-Zn mining site at different As and Pb levels were examined. The results showed that soil pH, total As and Pb, bioavailable As and Pb, nitrate-nitrogen (NO3−-N) and ammonia-nitrogen (NH4+-N) were the most important factors in shaping the bacterial community structure. In addition, significant correlations between various bacterial genera and As and Pb concentrations were observed, indicating their potential roles in As and Pb biogeochemical cycling. These findings provide insights into the variation of paddy soil bacterial community in soils co-contaminated with different levels of As and Pb.

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Section: Introductionmentioning

confidence: 99%

Spatial Variation in Microbial Community in Response to As and Pb Contamination in Paddy Soils Near a Pb-Zn Mining Site

Zou¹,

Lu²,

Dai³

et al. 2021

Front. Environ. Sci.

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“…Since Pb has a relatively low element-specific mobility and no correlations with the pH value were found, it is interpreted that Pb is deposited in reservoirs in particular by the erosion of organic-rich topsoil material. Due to its ubiquitous enrichment resulting from atmospheric depositions [56], particularly in forest soils [57], it can be assumed that it is transported to the reservoirs in a similar way as Cr and V. However, due to a comparatively higher preference to be bound to soil organic matter [58,59], the deposition of Pb in reservoir sediments seems to be influenced to a higher degree by the sedimentation of organic detritus.…”

Section: Discussionmentioning

confidence: 99%

Catchment Soil Properties Affect Metal(loid) Enrichment in Reservoir Sediments of German Low Mountain Regions

et al. 2022

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Sediment management is a fundamental part of reservoir operation, but it is often complicated by metal(loid) enrichment in sediments. Knowledge concerning the sources of potential contaminants is therefore of important significance. To address this issue, the concentrations and the mobile fractions of metal(loid)s were determined in the sediments and the respective catchment areas of six reservoirs. The results indicate that reservoirs generally have a high potential for contaminated sediment accumulation due to preferential deposition of fine particles. The median values of the element-specific enrichment factor (EF) demonstrates slight enrichments of arsenic (EF: 3.4), chromium (EF: 2.8), and vanadium (EF: 2.9) for reservoir sediments. The enrichments of cadmium (EF: 8.2), manganese (EF: 3.9), nickel (EF: 4.8), and zinc (EF: 5.0) are significantly higher. This is enabled by a diffuse element release from the soils into the impounded streams, which is particularly favored by soil acidity. Leaching from the catchment soils partially enriches elements in stream sediments before their fine-grained portions in particular are deposited as reservoir sediment. We assume that this effect is of high relevance especially for reservoirs impounding small streams with forested catchments and weakly acid buffering parent material of soil formation.

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Integration of sequential extraction, chemical analysis and statistical tools for the availability risk assessment of heavy metals in sludge amended soils

Khadhar

Sdiri

Anis

et al. 2020

Environmental Pollution

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Horizon-specific effects of heavy metal mobility on nitrogen binding forms in forest soils near a historic smelter (Germany)

Cited by 14 publications

References 45 publications

Spatial Variation in Microbial Community in Response to As and Pb Contamination in Paddy Soils Near a Pb-Zn Mining Site

Spatial Variation in Microbial Community in Response to As and Pb Contamination in Paddy Soils Near a Pb-Zn Mining Site

Catchment Soil Properties Affect Metal(loid) Enrichment in Reservoir Sediments of German Low Mountain Regions

Integration of sequential extraction, chemical analysis and statistical tools for the availability risk assessment of heavy metals in sludge amended soils

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