Аграрный вестник Урала № 07 (149) 2016Биология и биотехнологии
Impact of growing stock estimation indices on concentration of elk and roe
Concentration of elk and roe population in growing stock of West Siberian sub taiga forest steppe region of forest steppezone has been analyzed in the paper. Calculation of animals number has been carried out by root ways taking into accountwinter animals defection after snow melting and up to new grass appearance. It has been taken into account that the numberof defection heaps left by one elk in a day constitutes 14 and left by one roe – 15. Durability period of animals nutrition bycoarse forge constituted 200 days. The researches showed that animals concentration in autumn and winter period is varied verymuch depending on growing stock estimation index. the number of roe in investigated zone constitutes 0.2 at an average roesper 1000 ha, its vital activity farces have been fixed only in two mapping units. An others words Siberian roe does not bringsignificant damage for reforestation. Elk concentration is significantly higher and constitutes 8.4 p/1000 ha at an average. For allthis distribution of elk in the area is varied very much. Maximum concentration of elk (38.1/1000 ha) is fixed in forest culturesof 1992 that has been practically annihilated by animals. Above mentioned mapping units the number of males, females andcalves constitute 21.4,11.9 and 4.8 accordingly. Forest cultures of common pine at the age of 5–13 are characterized by highconcentration of elk as well. Mature birch and pine growing stands of high density are characterized by minimum concentrationof elk. The data on elk concentration in growing stands with different estimation characteristics of stands makes possible toplan ahead silvicultural measures and to achieve minimal damage to forests that elk has brought. An particular, the latter canbe achieved by fodder fields creation.
growing stock estimation index, hoofed animal, elk, roe, animals population density (concentration), forest cultures.
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