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Table 3 Silvicultural and ecological characteristics of the analyzed 295 study sites

From: Success factors for high-quality oak forest (Quercus robur, Q. petraea) regeneration

FactorsNumber of study sites / values
 YesNo  
Forest development goal reached (expert opinion)163132  
Tillage and mounding104191  
Young growth tending/pre-commercial thinning19996  
Fencing24550  
Presence of canopy trees118177  
Preceding land-use typeOak standNot oak stand  
 134161  
Landscape contextLow mountain rangeLowland  
 122173  
Regeneration methodNatural regenerationPlantingNatural regeneration and plantingSeeding
 11257225
Water supply statusDry soilsFresh soilsPeriodically moist/wet soilsMoist/wet soils
 591217243
Nutrient supply statusEutrophic soilsMesotrophic soilsOligotrophic soils 
 4523020 
 MinimumMeanMaximum 
Stand size (ha)0.11.817 
Stand age (years)212.720 
Canopy layer cover (%)09.585 
Cover of competitive weeds (%)01.1100 
Cover of competitive grass (%)019.0100 
Cover of competitive bracken (%)01.8100 
Cover of competitive shrubs (%)012.4100