Timofeeva Ya.O., Zharikova E.A., Golodnaya O.M., Burdukovskii M.L., Purtova L.N., Klyshevskaya S.V., Sidorenko M.L., Kuprin A.V.
Eurasian Soil Science 2026; 59: 24
The stocks of total and organic carbon in the soils of two types of natural forest biogeocenoses (Korean pine and broadleaved stands) are determined based on the study of physical and chemical properties, including the content and distribution of carbon and nitrogen in the profiles of Haplic Cambisols in the south of the Primorskii krai (Russia). These are slightly acidic soils (${\text{p}}{{{\text{H}}}_{{{{{\text{H}}}_{{\text{2}}}}{\text{O}}}}}$ 5.8–6.6) with a low content of carbonates (0.048–0.066%), contrasting increase in density (0.68–2.23 g/cm3), and a decrease in the content of fine earth (92.5–8.2%) downward the profile. The carbon and nitrogen contents in forest litter vary in the range of 32.4–48.3% (C) and 1.5–3.6% (N) in the OL subhorizon and 20.6–34.6% (C) and 1.1–2.0% (N) in the OFH subhorizon. Intensive mineralization of abundant plant litter contributes to an active input of carbon and nitrogen into the AY horizon (5.6–14.3 and 0.5–1.0%, respectively); the content of the elements sharply decreases with depth...
