<P> Present - day Poland is a country with favorable agricultural prospects, and over two million private farms . It is the leading producer of potatoes and rye in Europe, the world's largest producer of triticale, and one of the more important producers of barley, oats, sugar beets, flax, and various fruits . It is also the European Union's fourth largest supplier of pig meat after Germany, Spain and France . </P> <P> Phytogeographically, Poland belongs to the Central European province of the Circumboreal Region within the Boreal Kingdom . According to the World Wide Fund for Nature, the territory of Poland belongs to three Palearctic Ecoregions of the continental forest spanning Central and Northern European temperate broadleaf and mixed forest ecoregions as well as the Carpathian montane conifer forest . </P> <P> Many animals that have since died out in other parts of Europe still survive in Poland, such as the wisent in the ancient woodland of the Białowieża Forest and in Podlaskie . Other such species include the brown bear in Białowieża, in the Tatras, and in the Beskids, the gray wolf and the Eurasian lynx in various forests, the moose in northern Poland, and the beaver in Masuria, Pomerania, and Podlaskie . </P> <P> In the forests, one also encounters game animals, such as red deer, roe deer and wild boars . In eastern Poland there are a number of ancient woodlands, like Białowieża forest, that have never been cleared by people . There are also large forested areas in the mountains, Masuria, Pomerania, Lubusz Land and Lower Silesia . </P>

What has shaped much of the landscape along the northern european plain