Abstract: Trees are very important elements in agricultural landscape in Poland. Tree stand is one of the most important element of parks. The main purpose of the article was characteristic of tree stand diversity in country parks on example of Sandomierska Basin. Researched objects were divided on two types: parks withount antropic pressure and with antropic pressure. It was made 101 phytosociological records in 51 country parks. Number of plant species are diversified in parks without antropic pressure and with antropic pressure. Typical plant species for oak-hornbeam site have got the highest percentage cover in tree stand.

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