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Water conductivity of Arctic zone soils (Spitsbergen)

100%

Witkowska-Walczak B., Slawinski C., Bartminski P., Melke J., Cymerman J.

International Agrophysics

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2014

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tom 28

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nr 4

The water conductivity of arctic zone soils derived in different micro-relief forms was determined. The greatest water conductivity at the 0-5 cm depth for the higher values of water potentials (> -7 kJ m-3) was shown by tundra polygons (Brunic-Turbic Cryosol, Arenic) – 904-0.09 cm day-1, whereas the lowest were exhibited by Turbic Cryosols – 95-0.05 cm day-1. Between -16 and -100 kJ m-3, the water conductivity for tundra polygons rapidly decreased to 0.0001 cm day-1, whereas their decrease for the other forms was much lower and in consequence the values were 0.007, 0.04, and 0.01 cm day-1 for the mud boils (Turbic Cryosol (Siltic, Skeletic)), cell forms (Turbic Cryosol (Siltic, Skeletic)), and sorted circles (Turbic Cryosol (Skeletic)), respectively. In the 10-15 cm layer, the shape of water conducti-vity curves for the higher values of water potentials is nearly the same as for the upper layer. Similarly, the water conductivity is the highest – 0.2 cm day-1 for tundra polygons. For the lower water potentials, the differences in water conductivity increase to the decrease of soil water potential. At the lowest potential the water conductivity is the highest for sorted circles – 0.02 cm day-1 and the lowest in tundra polygons – 0.00002 cm day-1.

2

Application of image analysis for evaluation of mercury intrusion porosimetry results

100%

Kozak E., Pezda M.

International Agrophysics

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1995

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tom 09

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nr 4

3

Pore size distribution and amount of water available for plants in arable soils of Poland

84%

Witkowska-Walczak B., Walczak R., Ostrowski J.

International Agrophysics

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2003

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tom 17

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nr 4

4

The loading of human erythrocytes with small molecules by electroporation

84%

Saulis G.

Cellular and Molecular Biology Letters

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2005

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tom 10

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nr 1

5

Changes in pore size distribution and aggregate stability of two soils under long term tillage systems

84%

Pranagal J., Lipiec J., Domzal H.

International Agrophysics

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2005

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tom 19

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nr 2

6

Possible effects of soil contamination by light non-aqueous phase liquids [LNAPLs] on soil water parameters and their consequences

84%

Becher H. H.

International Agrophysics

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2002

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tom 16

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nr 1

7

Water-air properties of muck-like soils

84%

Wlodarczyk T., Witkowska-Walczak B.

Polish Journal of Soil Science

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2006

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tom 39

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nr 1

The paper presents research results concerning water retention curves, pore size distribution, and redox potential in profiles of muck-like soils under varied agricultural use. It was found that relatively favourable conditions for plant growth and development occur only in the surface horizons of muck-like soils, where the amount of water easily available for plants is at the level of 10-15%. Tillage of muck-like soils as arable fields for crop plants with low requirements, such as oat, potato, or field vegetable crops (cabbage) results in an almost two-fold decrease, in their muck-like horizons, of the content of large pores from 34 to 19% by vol., and an increase in the content of medium pores from 10 to 14-15% by vol., as compared to multi-year meadow cultivation. The studied soil profiles, with pore size distribution favourable for the processes of drying, are characterised by a strong resistance to reduction, i.e. redox potential values above +400 mV, observed within a broad range of soil water potential values, and which mean that one should not expect nitrate reduction in the soil profiles studied, and consequently no generation and emission of nitrous oxide (N₂O) to the atmosphere. The muck-like soil profiles studied can also be classified among soils with weak emission of carbon dioxide, which means that the soils do not contribute to the process of atmospheric/climatic warming.

8

Porosity and water useful for plants in Luvisols created from sandy silt and silt

67%

Witkowska-Walczak B., Turski M.

International Agrophysics

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2004

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tom 18

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nr 2

9

Agrophysics in modern agriculture

67%

Glinski J.

International Agrophysics

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1992

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tom 06

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nr 1-2

Ograniczanie wyników

7 International Agrophysics

1 Cellular and Molecular Biology Letters

1 Polish Journal of Soil Science

4 Witkowska-Walczak B.

1 Bartminski P.

1 Becher H. H.

1 Cymerman J.

1 Domzal H.

1 Glinski J.

1 Kozak E.

1 Lipiec J.

1 Melke J.

1 Ostrowski J.

1 Pezda M.

1 Pranagal J.

1 Saulis G.

1 Slawinski C.

1 Turski M.

1 Walczak R.

1 Wlodarczyk T.

1 2014

1 2006

2 2005

1 2004

1 2003

1 2002

1 1995

1 1992

Water conductivity of Arctic zone soils (Spitsbergen)

Application of image analysis for evaluation of mercury intrusion porosimetry results

Pore size distribution and amount of water available for plants in arable soils of Poland

The loading of human erythrocytes with small molecules by electroporation

Changes in pore size distribution and aggregate stability of two soils under long term tillage systems

Possible effects of soil contamination by light non-aqueous phase liquids [LNAPLs] on soil water parameters and their consequences

Water-air properties of muck-like soils

Porosity and water useful for plants in Luvisols created from sandy silt and silt

Agrophysics in modern agriculture