Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

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Registration certificate: PI number 77-12831 on May 31, 2002
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ISSN 1997 - 4868 (Print)

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ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 04 (134) 2015

Лесное хозяйство

Залесов С. В. Доктор сельскохозяйственных наук, профессор, проректор, заслуженный лесовод России Уральский государственный лесотехнический университет

Секерин Е.М. аспирант Уральский государственный лесотехнический университет

УДК:630.231.32(470.54)

FEATURES OF THE PROPAGATION OF UNDERGROWTH OF SIBERIAN STONE PINE OF PLANTINGS OF DIFFERENT FORMATIONS IN THE SOUTHERN TAIGA SUBZONE MIDDLE URALS

 In the course of research on the undergrowth of Siberian stone pine in the southern taiga subzone Middle Urals were studied and analyzed the last forest inventory materials-these years. Identified features of propagation of Siberian stone pine in various conditions. So regrowth cedar appears in mature and overmatures stands (over 75 %). In the young stands of pine regrowth were found. The largest area with undergrowth of Siberian cedar was observed in coniferous stands just under 70 %. A maximum density in middle-aged and maturing dark coniferous plantations and occurs 0.98 and 0.80 thousand units/ha. Minimum number of regrowth seen in middle-aged are deciduous and mature stands (0.21 and 0.22 thousand pcs/ha). The optimal value of completeness for the growth of undergrowth of Siberian stone pine is from 0.4 to 0.7. With a value of 0.5 is observed completeness of the maximum amount of regrowth and is 0.84 thousand pcs/ha. Number of undergrowth under the canopy of trees in the first place depends on the type of wood, the maximum amount of undergrowth in the study area is observed in the lichen group of forest types (1.32 thousand pcs/ha). Such an extension of undergrowth stone pine can be explained firstly the lack of competition of other tree species in the second feature of seed dispersal, this type of forest is rich topographical and confined to the upper part of the slope that is, in turn, has a bright benchmarks for birds and has a shallow depth of snow cover that is attractive to the main peddlers of stone pine seeds — birds.


Keywords:

Siberian stone pine, undergrowth, southern taiga, age, obesity, type of wood, wood formation, the amount of regrowth, natural regeneration, the parent stand.


References:

1. Danchenko A. M., Bech I. A. Prospects for the liberation of cedar undergrowth from under the canopy of other breeds // Bulletin of the Tomsk State University. 2010. № 1 (9). P. 68–77.

2. Luganskiy N. A., Zalesov S. V., Luganskiy V. N. Forestry : textbook. Ekaterinburg : Ural State Forestry Engineering University, 2010. 432 p.

3. Rules of felling in the forests of the Ural. M., 1994. 32 p.

4. Smolonogov E. P., Zalesov S. V. Ecological-silvicultural basis of the organization and management of the economy in the cedar forests of the Urals and West Siberian Plain : monograph. Ekaterinburg : Ural State Forestry Engineering University, 2002. 186 p.

5. Shirskaya M. N. Materials on the natural regeneration of Siberian cedar average mountain belt of the Eastern Sayan // Proceedings of the National Nature Reserve “Stolby”. 1958. Issue II. P. 101–151.


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