Naslov
Amelioration of the burnt Allepo pine (Pinus halepensis Mill.) forest area in the Makarska coastline region

Autori
Španjol, Željko

Izvornik
Glasnik za šumske pokuse (0352-3861) 34 (1997); 67-94

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
fires ; Aleppo Pine (Pinus halepensis Mill.) ; burnt area improvement ; vegetation succession ; Makarska Coastline

Sažetak
The Aleppo Pine (Pinus halepensis Mill.) is an allochthonous species in the Makarska coast area, i.e. it has been planted in cultures as a pioneer species for the purpose of improving and ameliorating the karst areas. This paper presents the results of the research on the improvements to the burnt area after the devastation caused by fire on a large stretch of the Aleppo Pine forest. The research was carried out where both old stands and young growth had been successively caught by fire. Two typical problems have to be understood when dealing with the Aleppo Pine, both being encountered in the Makarska Coast region. The first refers to fire in an old stand, where fire is no obstacle to stand regeneration. On the contrary, the Aleppo Pine as a pyrophyte species supplies the soil well with seed, so that thick young growth soon covers the ground. Thus, only a decade following a fire, we can see a large area of 2 m - high Aleppo Pine young growth, often with a million plants on one hectare. Since such thick growth is a dangerous inflammable material, preventive measures are required, such as reducing the number of plants. Riding cuts and roads are a priority among silvicultural operations. A much more serious problem occurs if the fire catches a stand of young, not yet fructiferous trees, so that no regeneration can take place. On these areas the planting of the Aleppo Pine, Maritime Pine, Cypress and the Evergreen Oak was carried out. Survival differs depending on the species. It emerged that the planting of small seedlings, especially one-year-old seedlings of the Evergreen Oak, over a bare surface, like the pioneer pine species, could not meet the target, since these young plants need shade in such extreme conditions of high temperature, hot sun, little moisture in the soil, and wind. Fair results were achieved with the Cypress, which, besides a high survival rate, grew considerably more in the ten-year period. It should, therefore, be planted more than has been the case so far. On both areas, there are very few autochthonous evergreen broadleaves besides the Evergreen Oak. Thus, on Area 1 (900 m2) there are 1 454 bushes of the Cistus sp., comprising 1.62 plants per 1 m2.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

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