Highly- and low-molecular organic compounds in tundra peat bogs

• Main Authors: R. S. Vasilevich, D. N. Gabov, V. A. Beznosikov, I. V. Gruzdev, E. D. Lodygin
• Format: Dataset
• Language: Russian
• Published: Theoretical and Applied Ecology 2015
• Subjects: tundra; peatland; humic substances; elemental composition; carboxylic acids; phenols; permafrost; taiga; Tundra
• Online Access: https://dx.doi.org/10.25750/1995-4301-2015-1-053-061; http://envjournal.ru/ari/v2015/v1/files/15109.pdf

The work examines the characteristics of humic substances and non-specific organic compounds in the tundra hummock peatlands. The upper peat layer serves a biochemical barrier and can sorb organic and organic-mineral compounds. The ecological potentials of soil humic substances from the tundra and taiga zones and tundra hummock peatlands were compared. Humic substances of hummock peatlands are of a low ecological potential and so evidence a high susceptibility of organic matter of peat deposits to degradation and change of environmental ecological parameters. Specific and unspecific organic compounds of hummock peatlands in permafrost soil horizons do not transform in contrast to active layer. In case of climate change, the upper permafrost border will also be changed and so modify qualitative and quantitative parameters of organic compounds and include new peaty layers into the global carbon cycle. Characteristic distribution spectra of carboxylic acids, their ratio in active and permafrost layers of peatlands can be markers (diagnostic criteria) of global climate change in high latitudes.