Experience of investigation of ecosystem pyrogenic dynamics on the taiga and bare alpine landscapes of the Amur River region

• Main Authors: S. V. Osipov, S. M. Krasnopeyev
• Format: Dataset
• Language: Russian
• Published: Theoretical and Applied Ecology 2016
• Subjects: fire-site; post-fire; catastrophic change; digression; ecological succession; boreal vegetation; Deadwood; taiga
• Online Access: https://dx.doi.org/10.25750/1995-4301-2016-1-051-055; http://envjournal.ru/ari/v2016/v1/files/16107.pdf

The aim of the paper is to consider a complex of approaches and methods. These approaches and methods allowed to obtain a holistic picture of pyrogenic dynamics of ecosystems on the territory of the Bureya natural reserve (mountain taiga and golets (alpine) landscapes). Special materials, approaches, and methods of identification of dynamic relationships of ecosystems were used. Geobotanical and landscape releves of sample plots were made. Special attention was paid to the signs of fire disturbance: fire markings on living trees, deadwood and fallen, and coals in soils. The method of «the establishment of the succession (temporal) relations based on the study of spatial (ecological and phytocenotic) rows of communities» offered by V.D. Aleksandrova has played an important role. In the process of classification and ordination of vegetation, diverse analysis of vegetation cover and landscapes was made, an ecological niche and a dynamic status for each vegetation class was revealed. Sets of topographic maps and satellite images of different time incorporated into the geographic information system are important sources of information about fires. The map of burnt areas of the last century was elaborated. A special role belongs to the universal geobotanical map prepared at a scale of 1 : 200000, the map allowed us to obtain a more completed picture of dynamics of vegetation cover. As a result, main pyrogenic series of vegetation are revealed: both catastrophic changes under fire impact and after-fire demutation successions.