Plantation forests cannot support the richness of forest specialist plants in the forest-steppe zone

摘要: Abstract In forestry, several types of management practices are used, which have significant effects on species richness and composition. A number studies concerning the effect biodiversity been conducted in tropical temperate forest zones. This topic is less studied steppe biome, where reestablishment plants from surrounding patches more limited than biome. Most compare alien plantations with seminatural forests. However, dominant tree mixed site preparation history such comparisons, due to intensive case plantations. this study, we separate these elements. We examined potential currently used forestry protocol preserving plant herb layer Pannonian sand using 266 plots Kiskunsag region Hungary. The total habitat preference groups (forest specialists, grassland native weeds, aliens) were compared natural plantation forests different explore Factors determining specialists analyzed by fitting a regression tree, was described their fidelity types. Our results show that sensitive some specific preference. Forest specialist can survive almost only continuous oak forests, is, continuously present do not undergo any preparation. They completely missing young plantations, most likely because removes them. Their recolonization possible trees landscapes present. Even under conditions, half able recolonize Grassland other hand, every type but low richness. Site acts as colonization window for weeds aliens. while highest decreases established probably canopy closing, aliens same both Considering our results, current hardly suitable maintaining zone, therefore, should be changed focus conservation endangered habitats.