Zbiorowiska chwastów segetalnych Równiny Piotrkomskiej i ich współczesne przemiany w związku z intensyfikacja, rolnictwa (Mezoregion Nizin Środkowopolskich) [Communities of segetal weeds of the Piotrkdw plain and their contemporary transformations in connection with the intensification of agriculture Central Polish Lowland Mesoregion)

Abstract

The work is a monograph of the regional vegetation accompanying crop plants in one of the most interesting mesoregions of central Poland. The standing phytosociological and ecological characteristic is given of 18 communities of segetal weeds against the natural conditions and changes in soil cultivation. On the basis of ecological and floristic analyses some regularities were established concerning: the structure and floristic composition of segetal communities, their dynamics distribution and spread, and the directions and extent of the contemporary transformations of these communities, due to the activity of man.