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Impact of fire on chemical characteristics of the soil in the Dalmatia

Impact of fire on chemical characteristics of the soil in the Dalmatia. Ivica Kisić; Igor Bogunović; Aleksandra Jurišić. Wildfires in Dalmatia. Dalmatian region  under biggest risk from fires Great socio-economic changes lead to increased number of fires

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Impact of fire on chemical characteristics of the soil in the Dalmatia

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  1. Impact of fire onchemical characteristics of the soil in the Dalmatia Ivica Kisić; Igor Bogunović; Aleksandra Jurišić Bihać, 28. 04. 2014

  2. Wildfires in Dalmatia • Dalmatian region  under biggest risk from fires • Great socio-economic changes lead to increased number of fires • Croatia (1998-2008): 29100 (31.7%) fires were recorded in Dalmatia Bihać, 28. 04. 2014

  3. Bihać, 28. 04. 2014

  4. Bihać, 28. 04. 2014

  5. Bihać, 28. 04. 2014

  6. Bihać, 28. 04. 2014

  7. Objective Evaluate effect of wildfire in Mediterranean flora in comparison to TC, TN, TS, K and P, and C/N, N/S ratios. Hypothesize  chemical soil parameters in Dalmatian natural flora will vary substantially, and disturbance will lead to marked changes. Bihać, 28. 04. 2014

  8. Materials and methods • Location: island Korcula and Peljesac peninsula (43°02'-42°45' N, 16°37'-17°46' E) Bihać, 28. 04. 2014

  9. Materials and methods - climatic characteristics Mediterranean climate long, dry and hot summers; winters are mild and humid. Average annual temp 11.2 0C, min in January 9.8 0C, max in July 26.9 0C. Average annual rainfall 1300 mm Bihać, 28. 04. 2014

  10. Materials and methods - flora: coniferous trees: Aleppo pine (Pinus halepensis), pines (Pinus pinea), Dalmatian black pine (Pinus nigra), cypress (Cypressus sp.) Maki, Holm oak (Ilex querxus), and also grows Carob and Laurel. Bihać, 28. 04. 2014

  11. Materials and methods – analysis Samples in layer 0-5 cm with similar aspect, slope, elevation and vegetation characteristics pH  electrometric method in KCl suspension TN  dry combustion method Bihać, 28. 04. 2014

  12. Materials and methods TC after dry combustion TS  by dry combustion P2O5 and K2O  extracted by AL solution and detected by spectrophotometric and flame photometric Data observed by ANOVA (Fishers LSD test at P≤ 0.05) Bihać, 28. 04. 2014

  13. Bihać, 28. 04. 2014

  14. Results Bihać, 28. 04. 2014

  15. Results Bihać, 28. 04. 2014

  16. Results Bihać, 28. 04. 2014

  17. Results Bihać, 28. 04. 2014

  18. Results Bihać, 28. 04. 2014

  19. Results Bihać, 28. 04. 2014

  20. Results Bihać, 28. 04. 2014

  21. Difference in terms of soil properties beetween burned and control areas Burned soil samples recorded higher values of pH, P, K, TN and TC. TS values are approximately equal Conclusions Bihać, 28. 04. 2014

  22. Conclusions • Burned samples in average contain more favorable C/N and wider N/S ratio • Caution low number of samples different vegetation type and cover erosion signs require more research Bihać, 28. 04. 2014

  23. Bihać, 28. 04. 2014

  24. Hvala na pažnji Bihać, 28. 04. 2014

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