Dinamiche della rinnovazione naturale in tagli a buche in pinete di pino laricio (Pinus laricio Poiret) dell’Appennino meridionale

Abstract

Abstract: The seedlings establishment was studied in small (380 m2), medium (855 m2) and large (1520 m2) gaps created in calabrian pine (Pinus laricio Poiret) stands (mean height 22 m) in the Southern Apennine. After three growing seasons first results put in evidence: a) no significant differences of water soil content were observed between gap sizes; b) transmittance was higher in large and medium gaps than in small ones and in the centre and northern sides in both gap sizes; c) calabrian pine seedling density was higher in large gaps than in medium and small ones and namely in the centre positions; silver fir seedlings appear after the second growing season in small and medium gaps; d) seedling mortality of calabrian pine was relevant in small and medium gaps in the edge and silver fir seedling mortality in the centre of the large ones; e) in these first years the ground vegetation (bramble and bracken) represents a moderate detrimental effect on seedlings establishment that could be removed by partial cuttings.