Igor Alexandrovich Ilyichev
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Communities of soil inverterbrates of the protected areas on the southern coast of CrimeaMoscow University Bulletin. Series 17. Soil science. 2020. N 1. p.53-62read more984
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We conducted soil zoological studies on the Southern coast of Crimea in the Nikitsky botanical garden and in the natural reserve “Cape Martian”. We found 22 taxonomic groups of large invertebrate soil animals, whose number was up to 1000 spec/m2, and biomass - up to 25 g/m2, in the artificial stratozems of the garden and in the natural red-colored soils of the reserve. The territory of the Nikitsky garden is characterized by a greater biomass and taxonomic diversity of the soil macrofauna than Cape Martian, but the structure of the communities of the two territories have similarities. Higher biodiversity and biomass in the garden are explained by increased soil moisture due to sprinkling and the mosaic distribution of vegetation in the arboretum. Both territories are characterized by a large internal heterogeneity of the soil population, which is due to the variability of soil properties, which is determined by the differences in the artificial soils of the Nikitsky garden and the gulley erosion of the soils of Cape Martian. These factors, together with the diversity of vegetation cover, affect the heterogeneity of the macrofauna distribution and provide high biological b-diversity of the territory.
Keywords: biodiversity; pedodiversity; terra rossa; technosols; Nikitski Botanical Garden
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An assessment of the most important carbon pools in the mixed forests of the Moscow regionMoscow University Bulletin. Series 17. Soil science. 2025. N 3. p.30-41Alexey S. Sorokin Valeria M. Telesnina M. A. Podvezennaya Yulia. L. Meshalkina Olga Iv. Manakova Vera P. Samsonova Marina I. Kondrashkina Svetlana Ev. Dyadkina Mikhail R. Chekin Igor A. Ilyichev Svetlana. A. Klachkova Olga I. Filippovaread more83
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The carbon reserves in main components of Moscow region coniferous-broadleaf forest were studied: various fractions of the tree stand, dead wood, mortmass, litter, living ground cover and mineral profile of the soil. To assess the potential intensity of organic matter decomposition, a number of indicators of the functioning of the microbial biomass were determined. An assessment is given of the carbon reserves and their shares in the ecosystem components that differ in the rate of renewal and potential capacity for carbon sequestration, as well as the degree of their spatial variation. The total carbon pool of the studied forest ecosystem is 18.7+0.8 kg·m–2, with almost 90% of the total stock concentrated in the perennial parts of the tree stand, dead wood, mortmass and mineral profile of the soil. These most stable pools are characterized by the least spatial variation within the biogeocenosis. The carbon reserves of the assimilating part of the grass layer and tree leaves are only 0.02 and 0.08 kg·m–2, respectively. The carbon reserves of litter are quite low - 0.21 ± 0.04 kg·m–2, which does not exceed 2% of the total carbon reserves of the ecosystem. The data obtained indicate that even secondary subclimax forest ecosystems are a significant absorber of atmospheric carbon, mainly due to the mass of the tree stand and soil organic matter.Keywords: secondary birch-spruce forest; soil organic matter; biological cycle; EE SEC "Chashnikovo"; carbon reserve; carbon sink
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