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001-es BibID:	BIBFORM096763
Első szerző:	Márta László (geográfus)
Cím:	Changes of the cultural landscape on Hajdúhát (Hungary)-from agricultural landscape to the monoculture / Márta László, Balogh Szabolcs, Novák Tibor József
Dátum:	2019
Megjegyzések:	The structural diversity, and complexity of land use and landscape components was studied in detail based on historic maps and recent remote sensed data in a study area on loess plateau of Hajdúhát, covered by chernozemic soils with 2500 ha extent dominated even traditionally by agricultural land use, first of all by crop production. At the end of the 19th century, at starting prosperity of individual farming in Hungary 79 individual farms could be found on the study area, in 1941 95, in 1962 154. In following period of the socialist restructuration of agriculture, the ongoing industrialization and expansion of intensive farming the earlier network of farms practically declined. In number of farms a strong decrease can be detected: in 1989 44, according the most recent remote satellite images only 38 farms still exists, and only 23 are in use. At the same time, the share of plough lands increased from 1751 ha (70%) at the beginning of the 19th century, to 2250 ha (90%) in recent times. Extent areas of former wetlands and meadows were occupied by plough lands. Until the 50s of the 19th century wetlands covered totally more than 500 ha (20%), actually they cover less than 10 ha (0.4%), extent of the mown meadows decreased to their third. The orchards, represented originally by an area of 0.8 ha, disappeared completely. The decline of the farm network is also detectably in changes of the road density. Int he first period the total length of roads was 93 km within the study area (3.72 2 km?km-), but it decreased to contemporary times to less than 50 km (2 km?km-2). Based on our results the spatial diversity, and complexity of the landscape characterized even earlier by plough lands showed ongoing reduction, and in recent condition could be characterized rather as agricultural monoculture instead of traditional cultural landscape.
ISBN:	978-99976-787-1-3
Tárgyszavak:	Természettudományok Földtudományok előadáskivonat könyvrészlet soil change agricultural changes soil science post agricultural landscape
Megjelenés:	X. International Scientific Agriculture Symposium, AGROSYM 2019 : Book of abstracts / editor in chief Dušan Kovačević. - p. 804. -
További szerzők:	Balogh Szabolcs (1992-) (geográfus) Novák Tibor (1973-) (geográfus)
Pályázati támogatás:	ÚNKP-19-3-I Egyéb
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM090358
Első szerző:	Márta László (geográfus)
Cím:	Top-and subsoil mixing due cultivation as degradation risk on chernozemic arable lands / László Márta, Balogh Szabolcs, Novák Tibor József
Dátum:	2019
Megjegyzések:	Variability in depth of organic rich layer, vertical distribution of secondary carbonates, nutrient content and changes in bulk density can heavily influence topsoil fertility after long term cultivation and applying homogeneous plough depth. Increasing cultivation depth contributes also to mixing of organic- and nutrient poor subsoil to the fertile topsoil layer, which can be considered as a risk of soil degradation process. In case of erosion is associated with increasing plough depth and intensity, the natural variability and spatial pattern can disappear, and soil fertility decreases. In our study the soil vertical variability within Chernozem covered arable parcells of Hajdúság and Mezőföld loess plateaus were investigated in microscale. Arable parcells on homogeneous, flat loess coverd areas with low relief energy were sampled in detail (20-50 meter distances). Vertical distribution of SOC, N, P and secondary carbonates were measured. In Hajdúság, we found, that even on very flat areas, there are serious differences in vertical carbonate and humus status of the soils, and due to ongoing long time deep cultivation and mixing surficial soil layers, the topsoil quality can be degraded. In Mezőföld additional erosion contributes to decrease of topsoil fertility. The degradation influences even soil classification status, and should be minimized for sustainable use.
Tárgyszavak:	Természettudományok Földtudományok nem besorolt egyéb
További szerzők:	Balogh Szabolcs (1992-) (geográfus) Novák Tibor (1973-) (geográfus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM096761
Első szerző:	Novák Tibor (geográfus)
Cím:	Soil organic carbon stock development in chernozemic soils following agricultural abandonment / Novák Tibor József, Márta László, Balogh Szabolcs
Dátum:	2020
Tárgyszavak:	Természettudományok Földtudományok előadáskivonat könyvrészlet soil organic carbon stock post agricultural side landscape change
Megjelenés:	EGU General Assembly Conference Abstracts. - p. 1.
További szerzők:	Márta László (1993-) (geográfus) Balogh Szabolcs (1992-) (geográfus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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