Mid-Infrared Spectroscopy Supports Identification of the Origin of Organic Matter in Soils
Michał Dudek , Cezary Kabała , Beata Łabaz , Paweł Mituła , Magdalena Bednik , Agnieszka Medyńska-Juraszek
AbstractSpectroscopic methods combined with statistics have recently gathered substantial interest in pedological studies. Near-infrared (NIR) spectroscopy has been utilized, for example, for reconstructions of the history and transformations of Chernozems, although no similar research was conducted based on mid-infrared (MIR). In this paper, the relevance of MIR spectroscopy was tested in studies on the origin/affinity of organic matter from chernozemic soils. Samples collected from three vegetation classes (grasslands, forests and arable lands) were investigated using MIR spectroscopy in order to create a statistical model, which was applied on buried profiles of unknown origin. The results showed a clear disjunction of vegetation classes. Samples of buried soil were placed in the space between all classes, indicating the relation to variable vegetation. Therefore, arable lands should not be omitted in paleoecological reconstructions, because we cannot exclude the cultivation of fertile soils before their burial. It was concluded that MIR methods may have similar applicability to NIR spectroscopy. Additionally, MIR spectra may also be discriminated according to the recognized soil type, which allows for direct reconstructions of the transformation trends in buried profiles.
|Journal series||Land, ISSN 2073-445X, e-ISSN 2073-445X, (N/A 70 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||mid-infrared spectroscopy; vegetation history; organic matter; Chernozems; buried soils|
|ASJC Classification||; ;|
|License||Journal (articles only); published final; ; with publication|
|Score||= 70.0, 21-04-2021, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2018 = 0.944; : 2019 = 2.429 (2)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.