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| RIJEČ GLAVNOGA UREDNIKA |
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| Branimir Prpić | |
| HOW TO SECURE THE FUTURE OF YOUNG, NATURALLY MANAGED FORESTS IN CROATIA DURING RECESSION
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236 |
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| IZVORNI ZNANSTVENI ČLANCI |
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| Tikvić, I., Ž. Zečić, D. Ugarković, D. Posarić | UDK 630* 429 + 851 (001) |
| Damage of Forest Trees and Quality of Timber Assortmets of Pedunculate Oak on Spačva Area
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237 |
| Trinajstić, I., Z. Cerovečki | UDK 630* 188 (001) |
| Festuco drymeiae-Fagetum Magic 1978 Association (Aremonio-Fagion) in the Vegetation of Northwest of Croatia
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249 |
| Roth, V., T. Dubravac, I. Pilaš, S. Dekanić, Z. Brekalo | UDK 630* 232.3 (001) |
| Acorn Size of Pedunculate Oak (Quercus robur L.) and Sessile Oak (Quercus petraea Liebl.) as a Factor in Growth and Development of Seedlings
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257 |
| Jakovljević, T., K. Berković, G. Tartari, B. Vrbek, J. Vorkapić-Furač | UDK 630* 425 (001) |
| Atmospheric Deposition in Forest Ecosystem of Europe and Research of New Methods for Determination of Phosphorus and Ammonia Within a Framework of ICP Forests
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267 |
Summary: The ICP Forests and EU Regulation aim to conduct intensive and continous monitoring on forests ecosystem as a means of evaluating the damage caused atmosferic pollution and other factors influencing forest con-dition.There is no doubt that phosphorus and nitrogen are among the most important elements for the biosphere and its biochemical cycles. Therefore, to get the most correct information about the concentration of different types of these elements is invaluable for understanding the control and creating biochemical cycles.In this work the implementation and validation of new colorimetric method on automatic analyser for determination of phosphorus and ammonia has been investigeted. The investigation was performed on samples precipitated water in the forest ecosystem.Until now standard methods, spectrophotometry has been used for determination of phosphorus and ammonia.In the validation procedure following criteria have been investigated: graphical analyses of measured results, accuarcy, linearity in the working range, the limit of detection, the limit of quantification and the repeatability. The results showed that the method for determination of phosphorus and ammonia on automatic analyser is linear in the range of investigation (Table 1), while the t-test has showed that differences between these two methods are not significant being 99,99 %. From the control charts it is obvious that the repeatability (Figure 7 and 8) of the results obtained with new method is good. The limit of detection and the limit of quantification shows more sensibility (Table 2). Therefore, the new method seem to be a good alternative to the standard methods and can be used in the scientific research of ICP Forests because is adapted to specifics of samples from forest.
Key words: ammonia; automatic analyser; CP Forests; phosphorus; precipitated water; spectrophotometry; validation method |
| Degmečić, D., K. Krapinec, T. Florijančić | UDK 630* 156 (001) |
| Factors that Determine Sex of Red Deer Calves (Cervus elaphus L.): Verification of Current Knowledge
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279 |
| Potočić, N., I. Seletković, M. Čater, T. Ćosić, M. Šango, M. Vedriš | UDK 630* 232.3 + 422 |
| Ecophysiological Response of Sun-Exposed Common Beech (Fagus Sylvatica L.) Seedlings under Different Fertilization Levels
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289 |
| Rosavec, R., D. Dominko, D. Barčić, D. Starešinić, Ž. Španjol, K. Biljaković, M. Ožura, N. Marković, D. Bognolo | UDK 630* 432.1 (001) |
| Analysis of Distribution of Areas Affected by Forest Fires on Island of Brač, Island of Korčula and Island of Rab
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301 |
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| PRETHODNO PRIOPĆENJE |
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| Perić, S., J. Medak, I. Pilaš, B. Vrbek, M. Tijardović | UDK 630* 413 + 232 |
| Initial Research Results of the Possibility of Revitalizing Očura II Querry with Autochthonous Tree and Shrub Species
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309 |
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| PREGLEDNI ČLANCI |
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| Konjević, D., U. Kierdorf, V. Njemirovskij, Z. Janicki, A. Slavica, K. Severin | UDK 630* 132 |
| Wild Boar Tusk Pathology: An Overview of the Current Knowledge and Models of Reparation
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319 |
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| STRUČNI ČLANCI |
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| Frković, Alojzije | UDK 630* 156 |
| The First Hunting Textbook of Bosnia and Herzegovina
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327 |
