DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 9-10/1960 str. 60 <-- 60 --> PDF |
4. Gračani n M.: Mali pedološki praktikum, Zagreb 1950. 5. Gračani n M.: Mjesečni kišni faktori i njihovo značenje u pedološkim istraživanjima, PZS 12, Zagreb 1950. 6´. Gračani n M.: Pedologija III, Zagreb 1951. 7. Horva t I.: Biljnociološka istraživanja šuma u Hrvatskoj, Glasnik za šum. pokuse br. 6, Zagreb 1938. 8. Jugo B., Kovačević P.. Kurtagić M i dr.: Ekološki uvjeti poljoprivredne proizvodnje istočne Slavonije i Baranje, Zagreb 1953. 9. Kovačevi ć J.: Vegetacija Biđ-Bosutskog polja, Zagreb 1958. 10. Moskovi ć A.: Tipovi tla u Slavoniji, VGPH, Zagreb 1914. 11. Seiwert h A.: Suše li se hrastovi zbog promjene tla, Gl. za šum. pok. br. 1. Zagreb 1926. 12. Stebu t A.: Još o uzrocima sušenja hrasta u Slavoniji, Gl. Min. polj., 1925. 13. Šando r F.: Slanjače u Hrvatskoj i Slavoniji, VGPHS, Zagreb 1912 13. 14. Škori ć A.: Degradacija černozema, Zagreb 1956. 15. Takši ć J.: Prinos poznavanju prapora ist. Hrvatske, Zagreb 1947. 16. Thornthwait h C. W.: An approach toward a rational classification of climate. The geographical rewiew No I, New York. 17. Vajd a Z.: Utjecaj klimatskih kolebanja na sušenje hrastovih posavskih i donjopodravskih nizinskih šuma, Zagreb 1948. A CONTRIBUTION TO THE KNOVVLEDGE OF FOREST SOILS OF THE BOSUT REGION Summary The author presents a few results of an investigation of forest soils in the Bosut region. The Bosut lowland area represents both the largest and main complex of the Sava basin forests. The specific ecological factors of this area have conditioned the development and subsistence cf lowland forests of Pedunculate Oak belonging to the communitv of Querceto-Genistetum elatae Horv. The investigations carried out for orientation have proved that in addition to the parent material, climate etc. the formation and distribution of soil types is here considerablv influenced by the relief. Accordingly there developed on higher localities — elevations — podzolized forest soils, or taking into consideration the differences conditioned by the relief etc. very weakly and weakly podzolized soils respectively. According to the most recent soil nomenclature the mentioned groups belong partly to leached brown forest soils and parapodzolic soils. On higher localities (elevations) which are under the influence of a greater moisture there developed a parapcdzol (pseudogley). On this occasion there were described the profiles of podzolized forest soils as well as those of very weackly and weakly podzolized soils respectively, which belong predominantly to the leached brown forest soils. Besides the process of acidification in these soils is also being observed a downward movement of colloids from the surface horizons to deeper horizons. The examination of the content of colloid clay particles (sized < 0.002 m. m.) shows that these soils are mainly mođerately to strongly colloidal. The soils are covered with stands of Pedunculate Oak (with Hornbeam). Soraetimes to these stands are admixed the following tree species: Elm and Ash, Lime and Common Maple. On low-l;ying localities (depressions) occur swampy (hydrogeneous) soils. They are under the influence of stagnat surface waters as well as high-level ground- waters almost throughout the year. Owing to their heavy mechanical composition they are rather jmpermeable. Described was the profile of the mineral swampy and fairly humous soil on loess and mentioned were the properties of this soil as well as those of a mineral swampy and strongly humous soil. The physical properties of these soils are chiefly insatisfactory, their mechanical composition is heavy. They are covered with stands of Ash and Oak. In svvamps there occurs a swamp vegetation because they almost never dry out in the course of the year. |