Artificial restoration of forests on Sakhalin Island
https://doi.org/10.21266/2079-4304.2022.241.142-156
Abstract
The structure, dynamics and regional features of artificial forest restoration on Sakhalin Island are analyzed. Over the past 75 years, forest crops have been created on the island as a whole on an area of 365885 hectares. The most large-scale reforestation work on Sakhalin was carried out in the 70-80s of the XX century, when the annual volume of forest crops reached 8-10 thousand hectares, which was due to the beginning of the functioning of two large basic nurseries. Due to the lack of their seeds, long-term forest crops on the island were grown from the inorainic scots pine, the total area of which eventually amounted to 113401 hectares. Especially actively forest crops of scots pine were created from 1968 to 1990 and reached 50-77% of the total volume of annual reforestation work in the region. However, due to the massive damage to pine crops by rodents and the negative impact of many natural factors, about 36% of their area died. For all other indigenous coniferous species (spruce, fir, larch) grown on Sakhalin, the death of forest crops was 3.7%. With the artificial reproduction of forests on Sakhalin, since the 80s, spruce has become significantly dominant over other species. As a result, the share of spruce crops for all the years of their cultivation on the island amounted to about half, and over the past 20 years – over 76% of the total area of forest crops. The share of forest crops of another dark coniferous species of the region – fir was extremely insignificant (2-3.5%). In general, artificial reproduction of forests on Sakhalin was carried out without taking into account the latitudinal differentiation of forest vegetation and the peculiarities of the biology of forest-forming species. The main reforestation work was first carried out in the southern regions, where the share of forest areas reaches 10-17%, and then in the middle part of Sakhalin. Meanwhile, very little attention is paid to the northern regions of the island (0.4-2.7%), where huge areas of unforested burns are currently concentrated.
About the Author
R. N. SabirovRussian Federation
SABIROV Renat N. – Head of the group of insel ecosystems
693022. Nauki str. 1-B. Yuzhno-Sakhalinsk
ResearcherID (WOS): AAG-6821-2021
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Review
For citations:
Sabirov R.N. Artificial restoration of forests on Sakhalin Island. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2022;(241):142-156. (In Russ.) https://doi.org/10.21266/2079-4304.2022.241.142-156