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Changes in the distribution of certain arable weed species in West Hungary – different responses to the modification of agricultural management methods

Summary
The complete article is written in German
By the end of the 20th century West Hungary became a well-developed and intensively managed area, where extensive arable fields survived only in territories of unfavourable site conditions. The changes of the agricultural management methods had different effects on the stands of arable weed species. The changes of the distribution and habitat preference of 7 sample species are discussed as a result of the site and habitat conditions and the agricultural management methods between 1880 and 2005. Due to the intensification Vaccaria hispanica existing only on arable fields disappeared totally. Although Ajuga chamaepitys, Aphanes arvensis, Camelina microcarpa and Valerianella rimosa, which can also be found in fallows and in dry secondary habitats, became rare at different degree, but they still have constant stands in areas having optimal site conditions, moreover Ajuga chamaepitys and Camelina microcarpa exist in naturally dry grasslands as well. The distribution of Montia fontana ssp. chondrosperma is interesting as this species seems to have become more frequent on intensively ploughed fields.

german version

Keywords/Stichworte:Arable weed species; intensive agriculture; survival; West Hungary

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Autor:G. KIRÁLY, Universität Westungarn, Fakultät für Forstwirtschaft, Institut für Botanik, Bajcsy-Zs. u. 4., H-9400 Sopron, Ungarn, E-Mail: gkiraly@emk.nyme.hu;
GY. PINKE, Universität Westungarn, Fakultät für Landwirtschaft, Institut für Botanik, Vár 2., H-9200 Mosonmagyaróvár, Ungarn, E-Mail: pinkegy@mtk.nyme.hu;
A. MESTERHÁZY, Nationalpark Orség, Siskaszer 26/a, H-9941 Oriszentpéter, Ungarn, E-Mail: mesterhazy@onp.kvvm.hu

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