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Nematode fauna of a cultivated peat meadow in relation to soil depth

100%

Ilieva-Makulec K.

Annales Zoologici

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2000

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tom 50

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nr 2

Vertical distribution of nematodes down to a depth of 50 cm was studied in a peat, meadow soil in north-eastern part of Poland. The abundance and generic composition of nematode fauna in five soil layers (0-10, 10-20, 20-30, and 40-50 cm) were analysed. It was found that total numbers of nematodes and their generic diversity decreased with increasing soil depth. Out of all nematodes, 65% (in May) and 72% (in September) were found down to a depth of 20 cm. The proportion of nematodes in the deepest studied soil layer (40-50 cm) was the lowest, about 9% in spring samples and only 1.3% in autumn samples. Nematode fauna of the studied site was represented by 43 genera from 27 families. The most common genera in both sampling occasions were Acrobeloides, Aglenchus, Cephalobus, Filenchus, Helicotylenchus, Rotylenchus and Rhabdolaimus. Considerable differences in vertical distribution of some genera were also found. An attempt was made to use some soil characteristics of the studied site in interpretation of the results.

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Influence of the state of peat mass secondary transformation and date of sowing on darnel [Lolium perenne L.] emergencies

84%

Gawlik J., Harkot W.

Acta Agrophysica

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2001

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tom 52

Influence of the sowing date and state of secondary transformations of moorsh formations on the Lolium perewne seed germination in the condtions of pot xperiments was studied. Peaty moorshes (Zi) and proper moorshes (Z2) with granular structure'taken TrönTTFe peat-moorsh soils at various stages of the moorshing process were used in the present experiment. Two levels of soil moisture were applied. It was found out that the influence of the sowing date on the differentiation of darnel emergencies on the moorsh soils was not big. However, a clear tendency for better germination of the seeds sown in summer than those sown in spring was observed. It was especially visible on the granular moorsh formations (Z3) that were not able to create as favourable water conditions for darnel seed germination and development of seedlings as peat moorshes (Zi) because of poor abilities for water conductivity. The present experiment showed that in order to ensure darnel emergencies on the soils formed of granular moorshes it is necessary to keep their moisture level close to 80% of their full water capacity. Seed germination was influenced more by the kind of moorsh and its moisture level than by the status of secondary transformation of the moorsh mass and sowing date.

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Microfloral abundance and enzymatic activity of Lumbricus rubellus Hoffm. [Oligochaeta: Lumbricidae] casts in pear meadow soils

84%

Makulec G., Chmielewski K.

Polish Journal of Ecology

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2002

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tom 50

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nr 3

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Post-drainage secondary succession of soil nematodes on fen peat meadows in Biebrza Wetlands, Poland

67%

Wasilewska L.

Polish Journal of Ecology

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2002

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tom 50

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nr 3

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The role of Lumbricus rubellus Hoffm. in determining biotic and abiotic properties of peat soils

67%

Makulec G.

Polish Journal of Ecology

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2002

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tom 50

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nr 3

Ograniczanie wyników

3 Polish Journal of Ecology

1 Acta Agrophysica

1 Annales Zoologici

2 Makulec G.

1 Chmielewski K.

1 Gawlik J.

1 Harkot W.

1 Ilieva-Makulec K.

1 Wasilewska L.

3 2002

1 2001

1 2000

Nematode fauna of a cultivated peat meadow in relation to soil depth

Influence of the state of peat mass secondary transformation and date of sowing on darnel [Lolium perenne L.] emergencies

Microfloral abundance and enzymatic activity of Lumbricus rubellus Hoffm. [Oligochaeta: Lumbricidae] casts in pear meadow soils

Post-drainage secondary succession of soil nematodes on fen peat meadows in Biebrza Wetlands, Poland

The role of Lumbricus rubellus Hoffm. in determining biotic and abiotic properties of peat soils