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001-es BibID:BIBFORM045137
Első szerző:Rédei Károly (erdőmérnök)
Cím:Practice-Oriented Yield Table for White Poplar Stands Growing under Sandy Soil Conditions in Hungary / Károly Rédei, Zsolt Keserű, János Rásó
Dátum:2012
Megjegyzések:Background and purpose: White poplar (Populus albaL.) and its most important natural hybrid, the grey poplar(Populus x canescens SM.) are native tree species inHungary, covering 3.2% of the forested area. Thanks totheir favourite silvicultural and growth characteristics aswell as the wood utilization possibilities, their presentarea is increasing continuously. The most important taskahead of Hungarian poplar growers is to improve thequality and to increase the quantity of poplar stands forwood production. To determine their growth rate andyield as exactly as possible, a yield table has been constructedwhich is based on the currently applied silviculturalpractice.Material and methods: Chapman ? Richards functionwith three parameters was successfully used as a growthfunction for constructing the height growth model. Thewhite poplar yield table was constructed from datagathered on 50 permanent and 40 temporary plots (cca.500-1000 m2). The age of the stands varied between5 and 45 years. In the course of the stand surveys thekey stand characteristics were measured, and then, onthe basis of data collected, were calculated such majorstand structure features as the average height, diameter(DBH), volume, basal area and stem number givenseparately for the main (remaining), secondary (removal)and total stands per hectare.Results and conclusion: The numerical (tabulated) yieldtable of normative nature presents data given to sixyield classes (base age: 25 years) including the most im-Original scientific paperportant stand structural and yield features expressingin terms of main stand, removing stand (which can beremoved in tending operations) and the total stand. Itis based on the Hungarian applied tending operations'practice. The published yield table has already been utilizedin the field of the relevant forest inventory as well.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
white poplar (Populus alba L.)
Chapman
Richards function
yield table
Hungary
Megjelenés:SEEFOR South-East European forestry. - 3 : 1 (2012), p. 33-40. -
További szerzők:Keserű Zsolt (agrár) Rásó János (1970-) (okleveles biológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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