Authors:
E. V. YUROVSKY, graduate student,
A. G. MAGASUMOVA, candidate of agricultural sciences, associate professor,
Ural State Forestry Engineering University (37 Sibirskiy tract Str., 620100, Ekaterinburg)
Abstract. A specific variety and elevated phytomass of the live ground cover (LGC) on the former arable land later after the termination of agricultural use is established 15 years. It is noted that on the former arable land pine young growths with insignificant impurity of a birch povisly are formed (Betula pendula Roth.). The intensity of overgrowing depends on remoteness of a wood wall, adjacent to the field. So, if in 5–15 m from a wood wall the density of the formed young growths is 10,9 thousand pieces/hectare, then at distance of 155–165 m doesn't exceed 1,1 thousand pieces/hectare. At the same time the wood reserve in the specified young growths makes 26 and 3 m3/hectare, respectively. Differences in intensity of overgrowing of an arable land wood vegetation have led to the fact that at distance of 5–15 m from a wood wall the elevated phytomass of JNP is 870 kg/hectare, and at distance of 155–165 m – 2486 kg/hectare in absolutely dry state. At the same time regardless of distance to a wood wall in ZhNP bluegrass types to which share 72,5–89,7 % of the general elevated phytoweight at occurrence of 92,3–100 % fall dominate. Data on specific structure and elevated phytomass of ZhNP need to be considered when planning and carrying out the forest care and fire–prevention actions.
Keywords: agricultural lands, young pine stands, regeneration of cutover stanas, live ground vegetation, epiferranean biomass.
