In geological terms, the lowland is part of the pre-Cambrian region.

[1] Western Polesie accounts for much marshland and rich soils, as the land has not been used for cultivation.

There is less arable land here than in other areas of the central-Polish lowland, as there are more meadows and pastures.

On drier areas, there are pine forests, whereas on boggy areas, among others there are alder patches of forests, and wetlands with the black alder trees.

In 1990, the region of Western Polesia was made into the Polesie National Park,[2] where among others the European pond turtle habituates the land.