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Microbial communities in paleosols of archaeological monuments in the desert-steppe zone

机译：沙漠草原区考古纪念碑古玉米醇的微生物群落

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摘要

Microbial communities in modern soils of solonetzic complex and in the paleosols under burial mounds were studied in the Ergeni Upland (the desert-steppe part of the Volga-Don Interfluve). The total biomass of microorganisms, their respiration activity, the proportions between the microorganisms of different trophic groups, and the number of fungal CPU were detennined in the profiles of buried light chestnut soil (Kastanozem, K1) and solonetz (Sn) developed in the region in the 4th century AD. After soil burying (1650 years BP), significant changes in microbiological parameters took place in the A1 horizon (for K1 and Sn) and B1 horizon (for K1). Diagenetic changes in the B2 horizon of studied paleosols were minimal. The biomass and, as a rule, respiration activity of buried paleosols were found to be approximately equal to those in modem soils. The proportions between populations of microorganisms from different trophic groups significantly differed in B2 horizons of modem and buried soils. Forthe first time, the possibility of using soil microbiological parameters to reconstruct paleoenvironmental conditions was proved. The end of the Late Sarmatian time (the 4th century AD) was found to have more favorable environmental conditions as compared with recent time.
机译：在Ergeni Upland（Volga-Don Interfluve的沙漠STEMPE部分）中研究了Solonetzic Complex的现代土壤中的微生物群落和墓穴下的古溶解。微生物的总生物量，呼吸活动，不同营养群的微生物之间的比例，并且真菌CPU的数量达到了该地区的埋地轻栗子土壤（Kastanozem，K1）和Solonetz（Sn）的曲线在公元4世纪。土壤埋葬（1650年BP）后，在A1地平线（适用于K1和Sn）和B1地平线（K1）中发生显着变化。研究古醇的B2地平线的成岩变化很小。生物质和通常，发现掩埋古溶胶的呼吸活性大致等于调制解调器土壤中的呼吸活性。来自不同营养群体的微生物群体的比例在调制解调器和埋藏土壤的B2视野中显着不同。第一次，证明了使用土壤微生物参数重建古环境条件的可能性。与最近的时间相比，发现已故的公园时间（公元4世纪）的时间（公元4世纪）有更有利的环境条件。

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