broj: 9-10/1999
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| IZVORNI ZNANSTVENI ČLANCI | ||
| Topić, V. | UDK 630* 114.2 + 237 (001) | |
| Amelioration Effects of Forest Cultures on the Karst in Relation to the Pedosphere pdf HR EN | 411 | |
| Summary: This paper deals with the amelioration effects of forest sorts on the pedosphere. The investigations are long lasting (33 years) and are done on the experimental object Klačine on Flowering Ash (Fraxinus ornus L.), Atlas Cedar (Cedrus atlantica Man.), Oriental Hornbeam (Carpinus orientalis Mill.), Black Pine (Pinus nigra Arn.), Maritima Pine (Pinus pinaster Ait.) and Oak Downy (Quercus pubescens Willd.) which were planted in 1958. The trees are in lines, they are of the same age and they develop in the same ecologic conditions. The first pedologic investigations were done one year before afforestation of the plot (in 1957) and later at the age of 19, 25 and 32 of the trees. Very interesting data were obtained about the quantity of leaf litter, humus, nitrogen, phosphorus and potassium in the soil under the investigated trees. The greatest quantities of leaf litter were noticed under Atlas Cedar and the smallest quantity of humus, nitrogen, phosphorus and potassium in the soil under Black Pine. These investigations are important for the rational managing of forest and forest soils, especially on karst. But the investigations stopped on the experimental plot Klačine because it was mined in the war in 1992. The plot is on the area of forestry of Sinj. It was founded in 1956 and it is a part of the amelioration complex Klačine, of the entire area of 40 ha. The afforestation of this forest experimental plot was done in the spring of 1958. It is situated on the slopes of the right bank of the river Cetina, with the highest point of 395 m. The plot is typical for the submediterranean karst part of Dalmatia and it lies nearly in its middle part. Geologically, the plot is quite homogenuous and is made of limestones with pebbles of dolomites on which are brown soils nowdays. According to Köppen, this area belongs to warm and moderately warm climatic zone, and according to rain factor into humid climate. During the vegetation period 500 mm or 40,5 % of the entire year rainfall falls. The most rainfall has December, 163 mm and the least July, 63 mm. It is not seldom that some summer months either do not have any rainfall or very little. The area in which the plot lies belongs to the Mediterranean-mountain area of the deciduous vegetation of (Ostryo-carpinetum orientalis).From the data obtained on the experimental plot Klačine it can be seen that the amelioration effects of forest sorts on the pedosphere are important and different. The effects manifest in the chemical and physical changes in the soil. Under coniferous trees there are bigger quantities of leaf litter, and less content, except at Atlas Cedar, of entire nitrogen and humus in the soil, especially in its humus accumulative horizon, than under decidious trees, especially Flowering Ash and Oriental Hornbeam, what is surely the result of slower transforming of leaf litter of coniferous trees and less percentage of nitrogen in it.The least values are in soils under Black Pine. Physiologically active phosphorus contain the soils under Flowering Ash with larger quantity of leaf litter, a little less under Oak Downy, Black Pine, Oriental Hornbeam and Atlas Cedar, and the least under Black Pine. Also the potassium lies most in the soils under Flowering Ash and least under Black Pine and Maritima Pine. The regression account showed that with the increase of unit of leaf litter the humus in soil (A horizon) increased from 0,115 % (Atlas Cadar) till 0,631 % (Flowering Ash), the content of nitrogen from 0,0048 % (Atlas Cedar) till 0,025 % (Oak Downy) and (Flowering Ash) the content of phosphorus from 0,017 mg/100 g (Black Pine) till 0,104 mg/100g (Oak Downy) and content of potassium from 0,172 mg/100g (Atlas Cedar) till 1,465 mg/100g (Flowering Ash). The correlation between the content of humus, nirogen, phosphorus and potassium with soil (A horizon) and leaf litter of investigated species on the Klačine plot is statistically significant, even mostly high significant on the level of 1%. Key words: amelioration effects; forest cultures; karst; Flowering Ash; Atlas Cedar; Oriental Hornbeam; Black Pine; Oak Downy; pedosphere; leaf litter; humus; nitrogen; phosphorus; potassium | ||
| Ballian, D., Mikić, T., Pintarić, K. | UDK 630* 232.1 (001) (Pseudotsuga menziesii) | |
| Growth Analysis of 5 Douglas Fir Provenances (Pseudotsuga menziesii Mirb. Franco.) in Field Experiment at Batalovo Brdo pdf HR EN | 423 | |
| Meštrović, A. | UDK 630* 524.6 + 122 (001) | |
| Prosper of Pinus heldreichii Christ in Herzegovina pdf HR EN | 431 | |
| PRETHODNO PRIOPĆENJE | ||
| Risović, S., Domac, J. | UDK 630* 831 + 839 | |
| Usage and Energy Potential of Biomass from Wood Processing Industry in Zagreb County pdf HR EN | 453 | |
| STRUČNI ČLANCI | ||
| Dimitrov, T. | UDK 630* 432 | |
| Forest Fires in Croatia - a Motive for Consideration pdf HR EN | 461 | |
| Tustonjić, A., Pavelić, J., Farkaš-Topolnik, N., Đuričić-Kuric, T. | UDK 630* 614 + 911 | |
| Forests Within the Regional Plan of County of Zagreb pdf HR EN | 469 | |