THE PHYTOCENOSES PRODUCTIVITY AND STABILITY ON THE TEMPORARY WITHDRAWAL LAND FROM AGRICULTURE

Abstract

On the basis of long-term studies was founded that by the year 2015 on the studied area the forest margin meadow phytocoenosis are formed. The prevailing group is transitional (unstable) differences (the stability indicator Hom is more than 2,1), which determine the composition of the vegetation phytocenosis in 53 % of cases. There are three main associations: here cereals, rich in cereal herbs and equisetum and cereals. The perseverant differences group (1,0) is formed by grass-and-legume plants (14,7 %). For relatively stable (Hom varies from 1,1 to 2,0) are classified legume-grass and rich in herbs cereal associations, their participation is 23,5 % and 8,8 %, respectively. It was noted that the high level of productivity and density length characteristic for legume-grass (11,0 t/ha and 70 cm) and grass-legumes (9,5 t / ha and 63 cm) associations. The positive strong correlation between legume component share and negative between equisetum and herbage phytocenosis mass was shown.