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ŠUMARSKI LIST 7-8/1997 str. 14     <-- 14 -->        PDF

V Topic: UPOTREBLJIVOST AUTOKTONIH LISTAČA PRI POŠUML.IAVANJU KRŠA Šumarski list br. 7-8, CXXI (1997), 343-352


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biljaka na našem submediteranskom području, Split.


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degradiranog krša, Šumarski list, Zagreb.


SUMMARY: The afforestation ofkarst is very important not only because of useful
functions of woods, which take central part in that area, but also because of the economic
values of these areas, which can became important national resource for wood production.
One of the main problems which must be solved is the right choice of species.
The former Institute for experimental forestry founded more experimental plots on the
karst, among them the experimental plot Klačine in 1956, on which the results were obtained,
after many years of investigation. The experimental were made with deciduous
plants and with native and foreign coniferous trees. The results were published (Topic,
1990).


The experimental plot Klačine is on the area of forestry Sinj. It is situated on the
slopes of the right side of the river Cetina, with the highest top of 395 m. It is apart of the
amelioration area Klačine, of the entire area of 40 ha. The afforestation on the experimental
plot was done in spring 1958. In the goelogical sense, the plot is quite homogenous
and is made of limestones with dolomites, on which are brown soils.


According Koppen, this area belongs to the warm and moderate warm climatic zone
and according to the rain factor into the humid climate. During the vegetation period
500 mm or 40,55% of the entire rainfall fall.


The area on which the plot lies belongs to the mediterranean-mountain area of the
deciduous vegetation of (Ostryo-Carpinion orientalis).


The investigations include seven native deciduous plants Oak downy (Quercus pu-
bescens Willd.), Hornbeam orientalis (Carpinus orientalis Mill.), Ash flowering
(Fraxinus ornus L.), Hornbeam hop (Ostrya carpinifolia Scop.), Mahaleb cherry tree
(Prunus mahaleb L.), Montpellier (Acer monspessulanum L.) and Southern celtis
(Celtis australis).


The trees were measured in the I., 11., 18. and 33. year.


The results obtained show that the quoted species, although they are native, grow
very slowly, because young plants of these species do not endure degraded soil and in
such conditions they die or just exist. Better success, compared with the other deciduous
plants, had Hornbeam hop. With the average height of 5,74 m in the 33. year it overtops
the other deciduous plants. The greatest height, after Hornbeam hop were reached by
Ash flowering and Hornbeam oriental. Ash flowering had an average height of 4,28 m
in the 33. year and Hornbeam oriental nearly follows it with the height and diameter.


Oak downy, as the most useful deciduous wood plant in this area, had in the 11. year
only 59 cm height and in the 33. year 3,11 m. Mahaleb cherry tree, although it is regarding
the number of survived plants, the leading wood plant, grows very slowly. Its average
height in the 33. year was 2,95 m. Montpellier grows even worse than Mahaleb
cherry tree and Southern Celtics decayed completely.


Key words: native deciduous plants, afforestation of karst, Oak downy,
Hornbeam oriental, Ash flowering, Hornbeam hop, Mahaleb cherry tree, Montpellier,
Southern Celtics, growth.


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