engleski

The ameliorative effects of pine cultures on forest sites on the island of Rab in Southwest Croatia

The paper investigates the ameliorative properties of pine cultures in their site conditions on the island of Rab. Pines, as allochthonous and pioneer species, were used to afforest degraded and devastated areas on the island because of their important role in the process of progressive vegetation succession. Twelve sample plots were established in the forest pine cultures. They encompassed various pine cultures (maritime pine, Aleppo pine and black pine) in diverse parent substrates (limestone, reddish-brown quartz sand, Flysch) and different soil types (eutric cambisol, cambisol on limestone, red soil and rendzina). To process the data, the following multivariate analyses were used: Two Way Indicator Species Analysis (TWINSPAN), Canonical Correspondence Analysis (CCA) and Indicator Species Analysis. The research results showed differences among the forest cultures of black pine, Aleppo pine and maritime pine. A relationship was found between the quantitative environmental variables (slope, pH, humus, the C/N ratio, age and the quantity of leaf litter) and the vegetation. As well as the relationship of the species towards qualitative variables (type of pine culture, parent substrate, soil type, exposition).

afforestation; mediterranean climate; soil properties; vegetation succession; broadleaves vegetation

nije evidentirano