This contribution is dealing with the ecological characteristic of the secondary pine forests in the Levocska kotlina basin. Regarding to their long-dated existence on this habitat they have a specific composition of the herb layer and therefore they were classified to the association Luzulo pilosae-culti-Pinetum ass. nova hoc loco. They were given to syngenetic relation with potential vegetation of this territory on the base of tenuos rests of the original (natural) forests. Changes in cover and biomass (above- belowground and total) of the herb layer of this community are discussed.