Relationship between forest canopy and natural regeneration in the subalpine spruce-larch forest (north-east Italy)
作者： Alessandro Paletto , Alessandro Marchi
DOI: 10.5281/ZENODO.30770
关键词: Old-growth forest 、 Environmental science 、 Ecology 、 Forest floor 、 Forestry 、 Canopy 、 Secondary forest 、 Forest ecology 、 Tree canopy 、 Subalpine forest 、 Crown (botany)
摘要: The authors describe the difference between canopy cover (proportion of forest floor covered by vertical projection tree crowns) and closure sky hemisphere obscured vegetation when viewed from a single point) respective ground-based estimation techniques focused on two types densiometer (GRS tube spherical). data collected in field were used to analyse relationship natural regeneration subtypes subalpine larch-spruce forests. results indicate that first subtype characterized high fertility (around 62%), level is low (115 stems per hectare) it nearly exclusively composed spruce [Picea abies (L.) Karst.]. For second medium 49%) rather dense (650 hectare). At last evidence insignificant different (+0.7% using spherical compared GRS densiometer).
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