Polese

a wooded sandy lowland typical of regions where ancient alluvial and water sands of the marginal belt of the Pleistocene continental glaciation extend within the southern taiga and the mixed and broad-leaved forests of Europe. The sands filled flat depressions in the surface that generally corresponded to tectonic basins. Appreciable and excess atmospheric moisture and poor surface drainage led to the formation of large swampy areas overgrown by pine, alder, birch, and poplar. (Although the rivers form a dense network, their channels are weakly cut.) Poles’ia are typical of the Poles’e Lowland, the Meshchera Lowland, the Vetluga River basin, and the eastern regions of Poland (in the Wieprz and Bug river basins). Similar landscapes are found in southern Canada and the northern parts of the United States.