SEASONAL CHANGES OF N-NH4+, N-NO3- AND P-PO43- IN PROPER PODZOL SOIL IN THE SLOVINSKI NATIONAL PARK

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Agnieszka Parzych Jan Trojanowski Katarzyna Bigus

Abstract

The paper presents seasonal changes in the concentrations of ammonia, nitrate and phosphate ions in podzolic soils under the Vaccinio uliginosi–Betuletum pubescentis and Empetro nigri-Pinetum plant communities. It results from the conducted investigations that the distribution and accumulation of mineral forms of nitrogen and phosphorus are considerably affected by atmospheric conditions such as temperature, humidity and precipitation. Analysed soils were characterised by a strongly acid reaction, which decreases with the depth of the soil profiles. A statistically significant correlation was found between the content of biogenic substances in soil and litterfall. The highest concentration of biogenic substances was observed in spring and summer months. Among analysed ions the ammonia form predominated, which mean content remained within the range from 0.12 to 6.69 mg/100 g d.m. Concentration of nitrates ranged from 0.05 to 0.13 mg/100 g d.m., while that of phosphates – from 0.04 to 3.09 mg/100 g d.m. The predominance of the ammonia and phosphate forms over the nitrate form in the organic horizons may result from their retention by the sorption complex. Nitrate ions exhibit greater mobility and are leached deeper into the analysed soil profiles.


 


Key words: forest, soil, nitrogen, phosphorus

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How to Cite
PARZYCH, Agnieszka; TROJANOWSKI, Jan; BIGUS, Katarzyna. SEASONAL CHANGES OF N-NH4+, N-NO3- AND P-PO43- IN PROPER PODZOL SOIL IN THE SLOVINSKI NATIONAL PARK. Baltic Coastal Zone, [S.l.], v. 15, p. 2011, vol.15, pp. 85 - 96, mar. 2011. ISSN 1643-0115. Available at: <https://bcz.apsl.edu.pl/index.php/1/article/view/114>. Date accessed: 04 july 2022.
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