Yield Study Relations of Regeneration of Robinia (Robinia pseudoacacia L.) Stands : Modelling Regeneration Success and Early Growth of Forest Stands. Proceedings from the IUFRO Conference held in Copenhagen, 10-13 June 1996

Horsholm

1996

S. 105-111

5 Lit. Ang.

Bandaufführung

78855

Robinia pseudoacacia is one of the most important stand-forming tree species in Hungary, covering approximately 18% of the forested land and providing 25% of the annual timber output of the country. One-third of these robinia stands are hight forest (seed origin) and the remainder are of coppice origin. In Hungary according to the forestry regulations robinia stands can be regenerated by root suckers and with seedlings. The paper investigates the influence of regeneration methods on wood production, the quality of stems and the health of trees. According to the reckoned data the professional and careful regeneration from root suckers produced higher yield at final cutting age than the regeneration carried out with seedlings. There was no considerable difference between the average quality of stems and the health of trees in stands regenerated by root suckers and seedlings. On the basis of the results of investigations and considering the economic requirements, regeneration of robinia stands from root suckers may be recommended on sites of yield classes I-III (Redei, 1985) on a larger scale.