Рудеральный компонент сорной флоры Ленинградской и Липецкой областей

Abstract

Comparison of a ruderal component of weed flora of agroecosystems of farms of the Leningrad and Lipetsk regions is carried out. The floristic analysis of the revealed specific composition is carried out. The floristic similarity of different taxonomical groups is estimated. Similar tendencies in distribution of species on life expectancy and distribution of species on families are revealed. Distinctions of specific composition of weed plants of the ruderal habitats of the compared regions are shown. Assessment of constancy of occurrence of species on classes is carried out. Groups of the dominating and accompanying species of weed plants are allocated. General species for the segroups are revealed.