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Gewählte Master / Diploma Thesis:

Rupert Gruber (2020): Lagerungsdichte von Dauergrünlandböden im Almbereich des Großarltales.
Master / Diploma Thesis - Institut für Pflanzenbau, BOKU-Universität für Bodenkultur, pp 91. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract For this study, various alpine soils of the Grossarl valley in Salzburg, Austria, were examined for density differences down to a depth of 30 cm. For the determination of the bulk density a sampling method using soil sampling rings was used. In addition, the penetration resistance was measured and various soil-physical and -chemical parameters were collected. In order to be able to make statements about the connection between soil compaction and the plant stock, soil compaction-indicating species were also assessed according to their occurrence and their sociability. Permanent grassland soils can be compacted for various reasons. These include the cultivation of the land by grazing livestock and the use of agricultural machinery. However, the use of heavy machinery is limited in alpine pastures, which is why lighter, compact special machines are usually used, although these can also have a certain influence on the soil structure. Thus, the investigations from this work have shown that areas that are driven over, compared to only grazing land, have a visibly higher soil density in the lower investigation area (15 to 30 cm). The alpine pasture areas were divided into utilization-intensive categories. Here a stronger compaction in the topsoil of intensively grazed areas is visible. In an overall comparison with the data from Gehmacher's investigations (2016), a generally lower soil density can be observed on the alpine pastures than on the permanent grassland sites of the Salzburg Flachgau.

Beurteilende(r): Bodner Gernot

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