Występowanie czereśni ptasiej (Cerasus avium Moench) na terenach Lasów Państwowych

Autorzy

• Kazimierz Zajączkowski Instytut Badawczy Leśnictwa, Sękocin Stary, ul. Braci Leśnej 3, 05-090 Raszyn, Fax: 02 7200397, e-mail: K.Zajaczkowski@ibles.waw.pl.
• Grzegorz Zajączkowski Instytut Badawczy Leśnictwa, Sękocin Stary, ul. Braci Leśnej 3, 05-090 Raszyn

Abstrakt

According to data from the Forest Districts’ stands descriptions obtained from the data bases of the Bureau for Forest Inventory and Geodesy in Warsaw, the resources and distribution of wild cherry (Cerasus avium Moench) in the State Forests were estimated. On December 31, 2002, the species grew in different layers and with various share in 9,141 stand units of 48,375 ha total area. The cherry appeared in species composition of the main stand in 819 units of 3,309 ha area. Remaining area concerns stands with single cherry appearance. The total yield of this species in the State Forests is 80,721 m3. The highest wild cherry resources are concentrated in the south, upland part of Poland in its natural range border. Four main centers of Cerasus avium appearance might be distinguished: Lubelsko-Lwowska Upland, Środkowo-Beskidzkie Foot-hills, Beskidy Zachodnie Mountains, Sudeckie Foot-hills. In the north and west Poland wild cherry covers much less area in many isolated groups that confirms theory of it artificial introduction. It grows the most often in multispecies broadleaved forests those belong to oak-hornbeam phytosociological associations. It grows very well on fresh, upland and mountain broadleaved forests sites. It increases well on wet and mixed wet broadleaved forests either. The State Forests manages quite big initial base to conduct the selective breeding of described species as the area of stands with wild cheery share with age over 50 years was 1,624 ha at the end of 2002.

Słowa kluczowe

• Cerasus avium
• broadleaved forests
• oak-hornbeam forests