Degradation of forest soils and soil cover in plain and mountainous areas of middle Siberia

Sukachev Institute of Forest, SB RAS, Krasnoyarsk

Head of the Institute:

Director: E.A. Vaganov, Academician of the RAS
Tel.:(3912)43-36-86; Fax: (7)(3912)43-36-86;
email: ifor@krsk.infotel.ru

Principal researchers:

Yu.I.Yershov, Doctor of Biological Sciences, Principal Soil Researcher,
L.S.Shugalei, Doctor of Biological Sciences, Principal Soil Researcher,
YU.N.Krasnoshchekov, Doctor of Biological Sciences, Principal Soil Researcher,
E.F.Vedrova, PhD (Biology), Senior Researcher,
G.I.Yashikhin, PhD (Biology), Senior Researcher,
I.N.Bezkorovainaya, PhD (Biology), Researcher.

Project objectives

To reveal integral parameters to assess the present ecological soil state, to range forest soils of Middle Siberia according to resistance to the anthropogenic-technogenic stresses, to elaborate methods of drawing a map of destroyed soils depending on the type and rate of affect, to make up the soil-ecological maps (of regioning, disturbance forecast, economical and ecological characteristics).

Studies of anthropogenic soil transformation as one of the main components of natural ecosystems have been carried out for already 20 years. For this period of time, numerous empirical scientific data have been accumulated for this region area:

The materials obtained show that soil resistance to anthropogenic stresses is determined by the humus system state. A decrease in forest ecosystem stability is followed by a decrease in accumulating organic substance in them, by a change in the correlation of processes of organic substance synthesis and decomposition and, finally, by a change of the ecosystem's role in the biosphere. Under excessive anthropogenic stresses the main biospheric soil functions decrease:

A system approach is as a methodological basis of the study. The ecosystems studied are considered as a system of blocks with supply of organic and mineral substance supported by the intensity of exchange processes that connect these blocks to the united system. The long-term (for 10-30 years) stationary observations and natural experience serve as an experimental basis for the collective study of the proposed project.

Criteria of assessment of soil and soil cover disturbance will be determined on the basis of data obtained, the system of ecological optimisation for Middle Siberian landscapes and of efficient soil and soil cover utilisation will be elaborated, the soil-ecological maps of the area regioning, disturbance prognoses, economical-ecological characteristics of the region will be made.

List of publications of participants related to the project

Anthropogenic impact

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Scheme of forest soil degradation under anthropogenic stress