Contents

Moscow University Soil Science Bulletin

Vol. 81, No. 2, 2026

Uncertainties in Digital Soil Mapping and Possibilities of Overcoming Them

I. Yu. Savin, V. P. Samsonova, and D. A. Zhulidova p. 155  abstract

Modeling of Spatiotemporal Variability of Carbon Stocks (Review)

I. M. Ryzhova, V. A. Romanenkov, and V. M. Stepanenko p. 164  abstract

Effects of Humic Preparations on Crop Yield and Agricultural Product Quality: A Systematic Review and Meta-Analysis

N. A. Kulikova and O. I. Filippova p. 172  abstract

Yield Estimation and Crop State Assessment of Key Crops in Russia over Large Areas with Regionally-Parametrized WOFOST Model

D. E. Plotnikov, E. N. Podgornova, Yu. L. Meshalkina, C. Zhou, E. S. Elkina, P. A. Kolbudaev, and M. A. Burtsev p. 189  abstract

Historical and Predictive Modeling of Soil Organic Carbon Stock Dynamics in Long-Term Field Experiment with Flax Crop Rotation

I. A. Ilichev, V. A. Romanenkov, N. N. Kuz’menko, V. N. Pavlova, and P. V. Krasilnikov p. 197  abstract

Contribution of Spatial Components to the Soil Bulk Density Variation in the Birch–Spruce Forest of the Educational and Experimental Soil and Ecological Center of Moscow State University “Chashnikovo”

O. I. Manakova, J. L. Meshalkina, V. P. Samsonova, and A. S. Sorokin p. 213  abstract

Spatial-Temporal Variability of Soil Respiration in a Temperate Continental Climate of the Southern Moscow Region

I. N. Kurganova, V. O. Lopes de Gerenyu, D. A. Khoroshaev, D. V. Sapronov, S. N. Kivalov, T. A. Nazarov, and V. A. Ableeva p. 223  abstract

Interannual Variability and Climatic Determination of Carbon Balance in Spring Barley Agroecosystems on Soddy-Podzolic Soils of the Southern Taiga

N. A. Aleksandrov, I. A. Seregin, O. S. Latysheva, D. V. Morev, and A. M. Yaroslavtsev p. 234  abstract

The Effect of Polymeric Materials on Mobile Species of Heavy Metals in Modeling a Contamination of Zonal Agricultural Soil Types in Tula Oblast

V. Yu. Berezkin, A. P. Degtyarev, K. V. Calero Errera, V. A. Terekhova, and O. S. Yakimenko p. 243  abstract

Uncertainty in the Evaluation of Total Soil Contamination with Heavy Metals

V. P. Samsonova and M. I. Kondrashkina p. 253  abstract

Influence of the Hydromorphism Degree on the Variability of Carbon Stock in Forest Soils of Karelia

V. A. Sidorova, Yu. A. Krukova, I. A. Ilichev, M. V. Konyushkova, and P. V. Krasilnikov p. 260  abstract

Assessment of Spatial Variability of Agrogenic Soils in the Subzone of Ordinary Chernozems in Moderately Arid Steppe of Altai Krai

E. G. Pivovarova and L. A. Fedchenko p. 267  abstract

Partition of CO2 Fluxes to Evaluate Agroecosystem Functional Heterogeneity under Intra-Field Soil Bulk Density Variability

A. M. Yaroslavtsev, N. A. Aleksandrov, I. A. Seregin, O. S. Latysheva, and D. V. Morev p. 277  abstract

The Content of Petroleum Hydrocarbons in Soils and Bottom Sediments in the Urban Ecosystems of the Likhoborka River, Moscow

D. N. Lipatov, P. D. Korsheninnikova, D. V. Manakhov, S. A. Borkov, and G. A. Agapkina p. 289  abstract

Influence of the Method of Potassium Fertilizer Application on the Morphological Structure and Yield Quality of Spring Barley

A. A. Lepikhina, K. V. Pavlov, S. E. Dyad’kina, and L. P. Voronina p. 301  abstract

Paleosols of Permian Red-Bed Formation of the Middle Volga Region

F. A. Mouraviev and T. V. Kropotova p. 308  abstract

Effect of Environmental Conditions on the Diversity of Soils on the Kuril Ridge Islands: A Case Study of the Urup and the Simushir Islands

A. A. Tananykin, S. F. Khokhlov, and V. M. Kolesnikova p. 325  abstract

Diurnal Dynamics of CO2 Emission from Soils of Representative Biogeocenoses in the North of Western Siberia

O. Yu. Goncharova, G. V. Matyshak, and A. A. Bobrik p. 341  abstract