Dendrochronological assessment of a condition of the Tundrinskiy cedar pine forest (Khanty-Mansi Autonomous Area — Yugra)

About the authors:

Stanislav P. Arefyev, Dr. Sci. (Biol.), Head of Sector of Biodiversity Dynamics and Natural Complexes, Institute of the Problems of Northern Development, Tyumen Scientific Centre of the Siberian Branch of the Russian Academy of Sciences; Leading Researcher, the International Institute of Cryology and Cryosophy, University of Tyumen; sp_arefyev@mail.ru

Arseniy Yu. Antonyuk, Junior Research Associate, Sector of Biodiversity Dynamics and Natural Complexes, Institute of the Problems of Northern Development, Tyumen Scientific Centre of the Siberian Branch of the Russian Academy of Sciences; antarseni@yandex.ru

Abstract:

This article presents a dendrochronological assessment of the condition of the Tundrinskiy cedar pine forest. This natural boundary is unique for seed efficiency and landscape esthetically value. There is a prospect of giving of the status of a nature sanctuary to it. The authors show that the forest (about 155 years old) began growing after the fires of the 1860s, as known from historical sources. By 1890, the forest experienced logging of the accompanying breeds, as was characteristic for the region’s cedar pine forests close to settlements.

Furthermore, the forest had in general a sustainable development under the influence of mainly cenotic factors and natural cycles. The authors show the basic cycles operating growth of a cedar pine: 6.7, 10.6, 13.0, 18.6, 22, 44, and 85 years (4.1 on average) — which are either solar or planetary in their tidal nature. The latest minimum of the cedar forest gain, caused by imposing adverse phases of a number of climatic cycles, occurred in 2012, and it did not entail essential negative changes of a forest stand. It is the first time this methodical approach is used in the Khanty-Mansi Autonomous Area — Yugra. Judging by dendrochronological indicators of gain and balance, the cedar forest was in a good phytosanitary shape at the studied period in August 2018.

The authors’ conclusions are based on the comparative analysis of the dendrochronological parameters long-term (century scale) loudspeakers of productivity and stability of a cedar forest stand not available by means of other methods. Considering world experience of a dendrochronology, the conducted research shows importance of carrying out dendro­chronological reconstruction and monitoring of a condition of natural objects, in particular for giving of the status of especially protected natural territories to them.

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