The influence of competition and dimensional-spatial characteristics of trees on their radial growth in Old-Growth Slătioara forest, Romania.
Journal Title: Advances in Environmental Sciences - International Journal of the Bioflux Society - Year 2010, Vol 2, Issue 2
Abstract
The paper tries to identify how the radial growths of trees from old-growth forests are influenced by some forest structural elements, but also how the radial growths depend on the biometric characteristics of trees. The analysis was made for mixed natural stands of coniferous and beech from Slătioara Natural Reserve. All selected natural stands have an uneven-aged structure. The main results have showed that tree diameter influences the radial growth especially in the case of shadow intolerant species (Norway spruce); when the preferences for light are decreasing, the correlation level between the two mentioned characteristics is also decreasing (beech, silver fir). The influence of neighbouring competitors on the radial growths of trees from the three main species was determined. The first ten competitor trees were identified and their competition on the reference trees was calculated according to the Hegyi pattern. It was found that, in natural uneven-aged stands, radial growths are mostly influenced by the competition exerted by the first nine competitor neighbours for Norway spruce, the first two competitor neighbours for silver fir and the first seven in case of beech. The competing neighbours that mostly influence the radial growth were analysed with respect to their azimuth against the reference trees. It was observed that the radial growths of Norway spruce are mostly influenced by the competitors located in S and SE. For silver fir and beech the highest influence over the radial growths comes from the competitors located in NE and E.
Authors and Affiliations
Gabriel Duduman, Cătălin-Constantin Roibu, Mihai-Leonard Duduman, Marius Miron-Onciul
Keywords
Related Articles
- EP ID EP155287
- DOI -
- Views 112
- Downloads 0
Contribution to knowledge of the distribution of herpetofauna in Tarcău Mountains (Romania)
In the researched area we identified 12 amphibian species: Salamandra salamndra, Lissotriton vulgaris, Triturus cristatus, Mesotriton alpestris, Lissotriton montandoni, Bombina variegata, Bufo bufo, Bufo viridis, Hyla ar...
The influence of parasites on harmful insects of the deciduous forests of the north of Argeş county
This article presents a study on the parasites of harmful insects of the acacia and oak forests from the superior basin of Doamnei river. Between 2008-2011, we identified in these forests the following species of harmful...
Assessment of air quality in Shivamoga City, Karnataka (India).
Assessment of the ambient air quality status in the selected location of Shivamoga city Karnataka State India was carried out for four years (2005 - 2009). Four stations (industrial, commercial, institutional and resid...
Conservation status of protected or rare invertebrates from the border area Romania – Republic of Moldova
We present the conservation status for 80 protected or rare invertebrate species located on the border area Romania – Republic of Moldova. We present also the situations of the protection of some important habitats were...