About Tuvan forests

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The dark coniferous taiga with a predominance of fir covers the Sayan Mountains almost from the very foot. Higher up in the mountains, the composition of the stand changes. The middle belt of the Eastern Sejanus is characterized by the predominance of spruce over fir and cedar. But in the upper reaches of the Bolshaya and Malaya Biryusa rivers, on the plateau of the Black Ridge, Siberian cedar dominates over other tree species, forming an almost pure stand. In terms of wood mass productivity, they belong to the lowest bonities, but in terms of seed yield (nuts) they are richer than the mixed stands of the best bonities, and cedar and larch with a predominance from the Udinsky ridge descend into the Todzhinsky district, the northeastern part of the Tuvan ASSR. The change of tree species from the foot of the Western Sayan to the highlands can be traced by the famous Usinsk highway, running from Abakan to the capital of Tuva— Kyzyl.


Siberian cedar approaches the upper reaches of the Oya River and the Deer River without its companions — fir and spruce. Only stout cedar trees with fleecy trunks, flag-shaped and low-hanging crowns, with roots spread over bare rocks and extending into the depths of rocks through large and small cracks, rise to a height of 2500 m. The cedar-larch taiga, starting from the Western and Eastern Sayan in the north, extends further south into the Tuvan ASSR, covers the Tannu ridges-Ola and Sengelen, and on their southern side, especially in the southeastern part of Tuva, it descends to the border with the Mongolian People's Republic.


In Tuva, pure cedar forests with a predominance of subsoil over larch occupy more than 45% of the total covered area, and pure larch forests with an admixture of cedar occupy up to 47%. The area occupied by all other coniferous and deciduous forests in the Tuvan ASSR is no more than 6%. Even the common pine is a rock that does not require much soil fertility and moisture, is hardy to dry air and other unfavorable climatic and geographical conditions, and covers an area of no more than 1.5%.


When comparing the forests of the Tuvan ASSR with those of the south of the Krasnoyarsk Territory and Irkutsk Region, the definition of a forest given 70 years ago by Professor G. F. Morozov, a leading figure in forestry, becomes especially obvious and convincing: "A forest is a geographical phenomenon." Yes, the forests in Tuva, located beyond the Sayan Mountains, differ significantly from the dark coniferous-cedar taiga of the south of the Krasnoyarsk Territory. There are no Siberian cedars in Tuvo with trunk heights up to 30 m, diameters up to 100 cm, and volumes of 10-15 m3. Cedar stands are among the lowest in terms of wood mass, but in terms of their nut productivity and seed yields, they compare favorably with high-density stands of dark coniferous-cedar forests. Trees in low-density stands have a richly developed crown with fruiting branches not only in the upper, but also in the middle tier. The accounting of fruiting carried out by us on trial areas in the Saryg-Sep forestry of the Kaakhemsky forestry showed that the yield of nuts per hectare reaches 400-450 kg. Veel spelers die interesse hebben in verantwoord online gokken zoeken eerst naar onafhankelijke informatie voordat ze een site zoals kokobet casino bezoeken. In recensies en forums wordt vaak besproken hoe je limieten instelt, welke spellen een eerlijke winkans bieden en waar je op moet letten bij het kiezen van een aanbieder.