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Scope and data set of the phytosociological database ‘Grasslands in the Polish Carpathians’

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Korzeniak J.

Acta Societatis Botanicorum Poloniae

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2013

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tom 82

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nr 3

The phytosociological database as a tool for synthetic and comprehensive study of semi-natural meadows in the Polish part of the Carpathians is presented. It has been developed in the Institute of Nature Conservation of the Polish Academy of Sciences since 2007. All accessible phytosociological relevés were digitalized and stored in a TURBOVEG database. As of January 2013, 4620 relevés have been collected in the database, chiefly from mesic meadows of Arrhenatherion alliance (76%) and mat-grass swards of Nardo-Callunetea class (18%). They were recorded between 1923 and 2012 at an altitude range of 195–2000 m above sea level. For improving territorial coverage of the region by vegetation sampling, since 2009 an extensive field survey has been carried out to collect data from previously unexplored areas and record the actual stage of semi-natural grasslands. As a result 1146 recent unpublished relevés were collected. The statistics of available resources, discussion on the data quality and the application prospects of the database are outlined. The database “Grasslands in the Polish Carpathians” is an intrinsic part of the research on the diversity of vegetation in the Polish Carpathian grasslands, as well as a record of the changes it undergoes.

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Manganese management in permanent meadow at different fertilisation

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Barszczewski J., Ducka M.

Zeszyty Naukowe Uniwersytetu Przyrodniczego we Wrocławiu. Rolnictwo

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2013

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tom 105

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Ways of increasing the magnesium content in sward from a long-term fertilizer experiment

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Kopec M., Mierzwa-Hersztek M., Gondek K.

Journal of Elementology

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2015

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tom 20

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nr 4

The paper discusses fluctuations, and their underlying causes, in the magnesium content of meadow sward from a fertilizer experiment set up on a mountain meadow in 1968. The fertilization experiment comprised 8 different treatments, with the following modifications: liming, magnesium and microelement fertilization and a change in the sward use made during the experiment so as to regenerate the sward and to improve the yielding potential. In the initial period, magnesium concentrations in the sward were assessed using the ASS technique after dry mineralization of samples and dissolution of the residue in diluted nitric acid. Later, the ICP technique was applied, including an internal reference sample for the methods. The cultivation measures caused variations in magnesium concentrations in the sward, depending on a number of factors, among which direct fertilization was not the most significant one. For example, the ambient temperature during the plant growing season strongly influenced the magnesium content, irrespectively of a cut. There was no effect of rainfall of the magnesium content, although atmospheric precipitation was able to raise considerably the charge of this element. In the second cut and under neutral soil pH, higher concentrations of magnesium were noted in the sward. This could have resulted from either the lower second swath yielding or the optimum conditions for the uptake of magnesium by the sward that occurred during its growth. The investigation results failed to provide an unambiguous answer to the question whether magnesium fertilization affected the concentrations of this element. Nonetheless, in order to maintain the production of valuable fodder it is essential to return systematically the elements taken up with plant yield to the soil. In intensively managed meadows, amounts of magnesium removed from the soil with the harvested biomass can be as high as several kilograms per hectare.

Ograniczanie wyników

1 Acta Societatis Botanicorum Poloniae

1 Journal of Elementology

1 Zeszyty Naukowe Uniwersytetu Przyrodniczego we Wrocławiu. Rolnictwo

1 Barszczewski J.

1 Ducka M.

1 Gondek K.

1 Kopec M.

1 Korzeniak J.

1 Mierzwa-Hersztek M.

1 2015

2 2013

Scope and data set of the phytosociological database ‘Grasslands in the Polish Carpathians’

Manganese management in permanent meadow at different fertilisation

Ways of increasing the magnesium content in sward from a long-term fertilizer experiment