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001-es BibID:BIBFORM082458
Első szerző:Magyar Tamás (környezetgazdálkodás)
Cím:Modeling of Soil Physical Properties in an Extreme Salt Impacted Grassland in Hungary / Tamás Magyar, Attila Nagy, Bernadett Gálya, János Tamás
Megjegyzések:Salinization is one of the most significant chemical soil degradation process globally, and also in Hungary. The high Na+ concentration represents a limiting factor considering the multifunctionality of soils and decreases the fertility and productivity in agricultural areas. In recent decades, the salinization process has been accelerated by the negative effects of climate change. The continuously increasing temperature tendency predicts higher water scarcity problems and results larger drought areas. Hungary is located in the middle of the Carpathian basin, this special geomorphological structure allows the rapid changing of wet and dry periods in microclimate, resulted salt leaching and accumulation even in a year. The described process is very different compared to the salinization of seaside areas, where the adverse impact of saltwater intrusion prevailed. Besides arable land, secondary salinization often can be found in grassland areas caused by the irrigation and the rising of saline groundwater level. The vertical salinization is a well-known research topic, although there is no available information about horizontal salinization. The soil samples generally are originated from boreholes, where the spatial extent of measured soil physical parameters possesses high uncertainty. The uncertainty of horizontal salinization modeling is also a limiting factor in accurate digital model in extreme salt impacted agricultural area. The investigated grassland is located in Ágota-puszta (part of Hortobágy National Park), which can be mainly characterized by saline habitats and animal husbandry. In this study, the evaluation method of horizontal salinization is presented based on high-density point cloud 3D LiDAR technology, allowing the detection more effectively. Run-off and saline accumulation processes were examined in order to determine the optimal water balance. The developed model contributes the better understanding of horizontal salinization, resulting higher accuracy in horizontal modeling.
Tárgyszavak:Természettudományok Környezettudományok könyvfejezet
Fenntarthatóság vizsgálata a funkcionális agrárökoszisztémákban
Megjelenés:Proceedings of the 2nd International Conference : Agrophysics Trends: from Actual Challenges in Arable Farming and Crop Growing towards Advanced Technologies / ed. Blokhina S., Ageenkova O., Tsivilev A. - p. 897-905. -
További szerzők:Nagy Attila (1982-) (környezetgazdálkodási agrármérnök) Gálya Bernadett (1987-) (környezetgazdálkodási agrármérnök) Tamás János (1959-) (környezetgazdálkodási agrármérnök)
Pályázati támogatás:EFOP-3.6.2-16-2017-00001
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