Magnetic imprints of pedogenesis in Planosols and Stagnic Alisol from Bulgaria

Jordanova, Neli; Jordanova, Diana; Petrov, Petar

doi:10.1016/j.geoderma.2010.10.018

Cited by 16 publications

(3 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, there is no obvious signal of hematite in the heating curve for deep soil sample (Figure 3b). Obvious decreasing κ value at about 300°C for deep soil sample should be due to the transformation from maghemite to hematite during heating process (Figure 3b) (Jelenska et al, 2010; Jordanova et al, 2011; Jordanova & Jordanova, 2016; Maher, 1986; Maher & Taylor, 1988; Ouyang et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, Huang et al (2018) pointed out that the influence of the initial parent material characteristics on iron oxides evolution as well as the phases and rates of magnetism changes diminished with time as prolonged rice cultivation drove paddy soil evolution. Combined the main soil type (paddy soil) within the study area, it can be inferred that some SP and stable SD (SSD) particles were dissolved by water immersion during gleyization processes of paddy soil formation (Jordanova et al, 2011; Lu, Zhu, et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic Difference Between Deep and Surface Soil Within an Agricultural Area in Southern China: Implications for Magnetic Mineral Transformation During Pedogenic Process Under Subtropical Climate

Ouyang

Guo

et al. 2020

Earth and Space Science

View full text Add to dashboard Cite

Mineral magnetism is proved as a sensitive method of pedogenesis by numerous studies. However, formation pathways of magnetic minerals and subsequent magnetic response are quite different under different climate. In order to improve the understanding of magnetic assemblages in paddy soil layers in relation to soil formation conditions, a systematic magnetic investigation was performed for surface and its corresponding deep soil collected from 70 sampling sites within a paddy soil area under subtropical climate, south China. Rock magnetic results showed that superparamagnetic, single-domain, and multiple domain maghematite and hematite were produced during ferrallitization pedogenic processes. Some fine superparamagnetic and single-domain ferrimagnetic particles were dissolved during late gleyization of paddy soil formation with increased organic matter and reductive condition. As a result, magnetism of surface soil was weaker than that of deep soil despite basically consistent magnetic mineral composition.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Magnetic Difference Between Deep and Surface Soil Within an Agricultural Area in Southern China: Implications for Magnetic Mineral Transformation During Pedogenic Process Under Subtropical Climate

Ouyang

Guo

et al. 2020

Earth and Space Science

View full text Add to dashboard Cite

show abstract

“…The soil type can affect the Fe and Mn concentrations in groundwater [47], because different types of soil can have very different types and contents of Fe and Mn oxides and organic matter [48]. It can be seen that elevated Mn concentrations in groundwater (Figure 2) mainly occur in black soil and chernozem areas (Figure 5a) but elevated Fe concentrations in groundwater occur widely across the study area (the soil calcification scheme can be seen in [49]).…”

Section: Soil Typementioning

confidence: 99%

Elevated Fe and Mn Concentrations in Groundwater in the Songnen Plain, Northeast China, and the Factors and Mechanisms Involved

et al. 2021

View full text Add to dashboard Cite

Groundwater is an essential source of drinking and irrigation water. However, elevated Fe and Mn concentrations in groundwater have been found in recent decades, which can adversely affect human health and decrease crop quality and yields. The roles of hydrogeochemical changes and groundwater pollution (exogenous reductive material inputs) in this have not been studied adequately. We determined the distribution of Fe and Mn concentrations in groundwater in the Songnen Plain, northeast China, which is known for elevated Fe and Mn concentrations, and investigated the factors and mechanisms involved in causing the elevated concentrations. Chemical and statistical analyses indicated that the Fe and Mn concentrations in groundwater significantly correlated with climate parameters (precipitation and temperature), surface features (altitude, distance from a river, soil type, soil texture, and land use type) and hydrogeochemical characteristics (chemical oxygen demand and NH4+, NO3−, and P concentrations). In particular, the Fe and Mn concentrations in groundwater are higher in areas containing paddy fields and water bodies than other land use type areas. Areas with groundwater containing ultra-high Fe and Mn concentrations have almost all of the favorable factors. The main reasons for the elevated Fe and Mn concentrations in groundwater in the study area are the Fe/Mn mineral-rich strata and soil with abundant organic matter acting as sources of Fe and Mn to the groundwater and the reductive environment in the lower terrain and areas containing water bodies favoring Fe and Mn dissolution in the groundwater. Inputs of pollutants from agricultural activities have caused the Fe and Mn concentrations in groundwater to increase. Future studies should be performed to study interactions between pollutants from agricultural activities and Fe and Mn in groundwater and develop environmental management strategies for preventing future increases in Fe and Mn concentrations and promoting sustainable development of agriculture.

show abstract

Magnetic and pedological characterisation of a paleosol under aridic conditions in Spain

et al. 2017

View full text Add to dashboard Cite

Magnetic imprints of pedogenesis in Planosols and Stagnic Alisol from Bulgaria

Cited by 16 publications

References 48 publications

Magnetic Difference Between Deep and Surface Soil Within an Agricultural Area in Southern China: Implications for Magnetic Mineral Transformation During Pedogenic Process Under Subtropical Climate

Magnetic Difference Between Deep and Surface Soil Within an Agricultural Area in Southern China: Implications for Magnetic Mineral Transformation During Pedogenic Process Under Subtropical Climate

Elevated Fe and Mn Concentrations in Groundwater in the Songnen Plain, Northeast China, and the Factors and Mechanisms Involved

Magnetic and pedological characterisation of a paleosol under aridic conditions in Spain

Contact Info

Product

Resources

About