Humus status of chernozem soils formed under deep hydrogen release and different humidification conditions

Purpose of the study: to reveal changes in some humus characteristics chernozems under influence two factors, specifically, humidification and flow endogenous hydrogen. Place time study. Soil sampling hydromenty were carried out on territory Gryazinsky district Lipetsk region (Krivoborgsko-Saltykovsky trough, with leached chernozems) Oktyabrsky Voronezh (Khopersky deep fault, ordinary June 2017. Methods. The molecular hydrogen content was measured directly field a portable gas analyzer VG-3B. total soil organic carbon (SOM) determined by Tyurin method, pH potentiometrically. To assess SOM composition, an alkaline pyrophosphate extraction used. luminance values samples using CIELAB international chromaticity system LRV Nix Color Sensor spectrocolorimeter. Results. study showed that different regions, effect these factors different. Tthe establishment reductive regime, signs podzolization gleing morphological profile, acidification bulk brightening upper horizon found be common features between soils regions. However, such active reducing agent as qualitative composition regions varied greatly. In drier chernozems, accumulated relief depressions (from 2.4 5.4%), due their sharp predominance (three times, sometimes four times) profiles, fulvic acids increase acidity. contrary, manifested significant loss 3.9 2.2%), humic predominating composition. This most likely associated removal more mobile components outside profile climate region.