Soil Formation in the Quarries after Forest Reclamation in the Middle Taiga Subzone of the Northeast of European Russia

The Effect of Hydromorphism on Soils and Soil Organic Matter during the Primary Succession Processes of Forest Vegetation on Ancient Alluvial Sands of the European North-East of Russia

“…Consequently, in the first 100 years of primary succession of Queets River floodplain overgrowing with vegetation (WA, USA), the indicator for the upper 20 cm soil layer was 0.36 t ha −1 year −1 [11]. According to the data obtained from our previous research [12], the C org accumulation rate was 0.16 t ha −1 year −1 in automorphic soils formed on sandy loam fluvioglacial deposits during the managed succession (after reforestation of quarries), which is 2 times higher than the C org accumulation rate (0.07 t ha −1 year −1 ) in the soil under the developing lichen pine forests on ancient alluvial sandy deposits.…”

“…In the taiga zone in the north-east of European Russia [12] and in the Urals [7] the rate of soil carbon accumulation during the first 2-3 decades of succession varies from 0.1 to 0.7 t/ha per year. The variation in the values obtained is mainly due to differences in the properties of parent rocks, the nature of the formation of bioclimatic characteristics of regions, the composition, and structure of the vegetation cover [7,12,13].…”

“…Our earlier studies of primary soil formation on various substrates (fluvioglacial sands and sandy loams, moraine loams) in the Middle Taiga subzone of the Komi Republic [12] showed the need for their continuation to obtain more detailed information on the processes of accumulation and transformation of soil organic matter during the secondary succession in the north. For this reason, soils formed on ancient alluvial sands served as one of the objects of study.…”