Flora agrocenoz dolin rzecznych w środkowowschodniej Polsce

Abstract

The paper deals with segetal flora in the Liwiec, Tyśmienica, and Wilga river valleys and with the impact of those locations on biodiversity and migra-tion of species from seminatural communities to arable fields. The studies were conducted between 2014 and 2018 on cereals, root crops, and stubble fields.To this end, the following research objectives were designated: 1. Inventory of flora in the agrocoenoses of the Liwiec, Tyśmienica, and Wilga river valleys. 2. Multidimensional comparative analysis of inventoried vascular plants, including: species occurrence, their geographical and historical origin, life-form, plant propagation, and type of ecological strategy. 3. Assessment of habitat conditions in designated permanent research plots in the transects located in the river valleys. 4. Statistical comparative analysis of habitat conditions in river valleys and permanent research plots. 5. Analysis of flora in permanent research plots in terms of plant sociolog-ical and ecological groups and their development strategies. 6. Statistical assessment of biodiversity in permanent research plots. 7. Analysis of the floristic richness of plant communities in terms of habitat conditions of the valleys of the Liwiec, Tyśmienica and Wilga rivers.