Study of forest soils on an area of magnetic and geochemical anomaly in north-eastern Poland

Geoderma ◽  
2011 ◽  
Vol 160 (3-4) ◽  
pp. 559-568 ◽  
Author(s):  
Tadeusz Magiera ◽  
Michał Jankowski ◽  
Marcin Świtoniak ◽  
Marzena Rachwał
Soil Research ◽  
1997 ◽  
Vol 35 (6) ◽  
pp. 1231 ◽  
Author(s):  
M. D. Laffan ◽  
T. J. Kingston

Soil properties and earthworm population density were examined for 5 forest soils derived from Silurian-Devonian sandstones (Mathinna Beds) in north-eastern Tasmania. The soils occur along gradients of altitude, rainfall, and forest type; they include 2 with texture-contrast and 3 with gradational soil profile types. The density and biomass of the most abundant earthworm species Megascolex montisarthuri, and of all earthworm species combined, were found to be greater in gradational than in texture-contrast soils. A greater proportion of the earthworms in gradational soils than in texture-contrast soils was found to occur at soil depths exceeding 10 cm. The contrast was most pronounced between the 2 texture-contrast soils and the single gradational soil that occur under dry eucalypt forest. This paper explores the hypothesis that bioturbation of surface and subsurface layers by earthworms is an important mixing process that in gradational soils outweighs the counter tendency for soil particles to sort and thus form texture-contrast profiles.


2013 ◽  
Vol 39 (4) ◽  
pp. 113-122 ◽  
Author(s):  
Agnieszka Jeske ◽  
Barbara Gworek

Abstract The investigation was carried out on forest soils collected from areas subject to variable pollution. The fraction of strontium was analyzed in soil samples from north-eastern Poland (Borki forest division), treated as a non-polluted region (natural background) and in soil samples from central (Rogów forest division) and south-western Poland (Świerklaniec forest division). The sequential extraction procedure was applied in this study to separate the fractions of strontium. Five fractions were analyzed in every genetic horizon according to the Tessier method. The concentration of strontium was also analyzed in the plants. Both results were compared in order to evaluate the mobility and bioavailability of the trace elements in the environment. The content, distribution and bioavailability of the strontium fractions were investigated with particular emphasis on the contaminated study sites. Total content of strontium in surface horizons depended on the localization. Among analysed fractions strontium, in organic soil horizons, regardless of localization, occurred predominantly in mobile fractions in all examined soils.


2004 ◽  
Vol 264 (1/2) ◽  
pp. 85-95 ◽  
Author(s):  
Wolfgang Schaaf ◽  
Birgit Wecker ◽  
Tao Pan ◽  
Reinhard F. Hüttl

1942 ◽  
Vol 21 (8) ◽  
pp. 315
Author(s):  
Bowen ◽  
Vickery ◽  
Buchanan ◽  
Swallow ◽  
Perks ◽  
...  

Author(s):  
MELAKYRKHU NIANGMIH ◽  
SAMIRAN CHUTIA ◽  
DAS BANYASHREE ◽  
SARKAR BAPI ROY ◽  
DEY BIPLAB KUMAR ◽  
...  

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