@article{MTMT:3386853, title = {The influence of paleogeomorphology on the stable isotope signals of paleosols}, url = {https://m2.mtmt.hu/api/publication/3386853}, author = {Barta, Gabriella and Bradák, Balázs and Novothny, Ágnes and Markó, András and Szeberényi, József and Kiss, Klaudia and Kovács, József}, doi = {10.1016/j.geoderma.2018.05.033}, journal-iso = {GEODERMA}, journal = {GEODERMA}, volume = {330}, unique-id = {3386853}, issn = {0016-7061}, keywords = {SEQUENCE; LUMINESCENCE; Hungary; Oxygen Isotopes; Holocene; record; Chinese Loess Plateau; Paleoenvironmental reconstruction; SOIL CARBONATES; SECONDARY CARBONATES; Upbuilding pedogenesis; delta C-13 and delta O-18 relations; Loess/paleosol sequence; Stable isotope matrix (SIM)}, year = {2018}, eissn = {1872-6259}, pages = {221-231}, orcid-numbers = {Barta, Gabriella/0000-0002-5460-1085; Novothny, Ágnes/0000-0003-3513-0406; Markó, András/0000-0002-7556-0091; Kovács, József/0000-0002-6797-2504} } @article{MTMT:3312205, title = {A 300-year record of sedimentation in a small tilled catena in Hungary based on δ 13 C, δ 15 N, and C/N distribution}, url = {https://m2.mtmt.hu/api/publication/3312205}, author = {Jakab, Gergely Imre and Hegyi, I and Fullen, M and Szabó, Judit Alexandra and Zacháry, Dóra and Szalai, Zoltán}, doi = {10.1007/s11368-017-1908-9}, journal-iso = {J SOIL SEDIMENT}, journal = {JOURNAL OF SOILS AND SEDIMENTS}, volume = {18}, unique-id = {3312205}, issn = {1439-0108}, keywords = {DYNAMICS; PLANT; Nitrogen; soil erosion; FRACTIONS; Sedimentation; SOIL ORGANIC-MATTER; WATER EROSION; C-13 ABUNDANCE; CARBON REDISTRIBUTION; SOUTHERN CHINA; N-15 NATURAL-ABUNDANCE; delta N-15; delta C-13; soil organic carbon}, year = {2018}, eissn = {1614-7480}, pages = {1767-1779}, orcid-numbers = {Jakab, Gergely Imre/0000-0001-5424-1983; Zacháry, Dóra/0000-0001-8248-5571; Szalai, Zoltán/0000-0001-5267-411X} } @article{MTMT:3394401, title = {Soil organic matter characterisation by photometric indices or photon correlation spectroscopy: are they comparable?}, url = {https://m2.mtmt.hu/api/publication/3394401}, author = {Jakab, Gergely Imre and Rieder, Á and Vancsik, Anna and Szalai, Zoltán}, doi = {10.15201/hungeobull.67.2.1}, journal-iso = {HUNG GEOGR BULL (2009-)}, journal = {HUNGARIAN GEOGRAPHICAL BULLETIN (2009-)}, volume = {67}, unique-id = {3394401}, issn = {2064-5031}, year = {2018}, eissn = {2064-5147}, pages = {109-120}, orcid-numbers = {Jakab, Gergely Imre/0000-0001-5424-1983; Vancsik, Anna/0009-0009-8234-5785; Szalai, Zoltán/0000-0001-5267-411X} } @article{MTMT:132695, title = {Stabilizotóp-geokémia}, url = {https://m2.mtmt.hu/api/publication/132695}, author = {Demény, Attila}, journal-iso = {MAGY KÉM FOLY KÉM KÖZL}, journal = {MAGYAR KÉMIAI FOLYÓIRAT - KÉMIAI KÖZLEMÉNYEK (1997-)}, volume = {109-110}, unique-id = {132695}, issn = {1418-9933}, year = {2004}, eissn = {1418-8600}, pages = {192-198}, orcid-numbers = {Demény, Attila/0000-0003-0522-9018} } @article{MTMT:1016516, title = {Carbon isotope anomaly and other geochemical changes at the Triassic-Jurassic boundary from a marine section in Hungary}, url = {https://m2.mtmt.hu/api/publication/1016516}, author = {Pálfy, József and Demény, Attila and Haas, János and Hetényi, Magdolna and Orchard, M and Vető, István}, doi = {10.1130/0091-7613(2001)029<1047:CIAAOG>2.0.CO;2}, journal-iso = {GEOLOGY}, journal = {GEOLOGY}, volume = {29}, unique-id = {1016516}, issn = {0091-7613}, year = {2001}, eissn = {1943-2682}, pages = {1047-1050}, orcid-numbers = {Pálfy, József/0000-0001-9686-1849; Demény, Attila/0000-0003-0522-9018; Haas, János/0000-0003-0929-8889; Hetényi, Magdolna/0000-0002-7177-6389} } @article{MTMT:1700693, title = {The origin of soil organic C, dissolved organic C and respiration in a long-term maize experiment in halle, Germany, determined by13C natural abundance}, url = {https://m2.mtmt.hu/api/publication/1700693}, author = {Flessa, H and Ludwig, B and Heil, Bálint and Merbach, W}, doi = {10.1002/(SICI)1522-2624(200004)163:2<157::AID-JPLN157>3.0.CO;2-9}, journal-iso = {J PLANT NUTR SOIL SC}, journal = {JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE}, volume = {163}, unique-id = {1700693}, issn = {1436-8730}, abstract = {For a quantitative analysis of SOC dynamics it is necessary to trace the origins of the soil organic compounds and the pathways of their transformations. We used the 13C isotope to determine the incorporation of maize residues into the soil organic carbon (SOC), to trace the origin of the dissolved organic carbon (DOC), and to quantify the fraction of the maize C in the soil respiration. The maize-derived SOC was quantified in soil samples collected to a depth of 65 cm from two plots, one 'continuous maize' and the other 'continuous rye' (reference site) from the long-term field experiment 'Ewiger Roggen' in Halle. This field trial was established in 1878 and was partly changed to a continuous maize cropping system in 1961. Production rates and δ13C of DOC and CO2 were determined for the Ap horizon in incubation experiments with undisturbed soil columns. After 37 years of continuous maize cropping, 15% of the total SOC in the topsoil originated from maize C. The fraction of the maize-derived C below the ploughed horizon was only 5 to 3%. The total amount of maize C stored in the profile was 9080 kg ha-1 which was equal to about 31% of the estimated total C input via maize residues (roots and stubble). Total leaching of DOC during the incubation period of 16 weeks was 1.1 g m-2 and one third of the DOC derived from maize C. The specific DOC production rate from the maize-derived SOC was 2.5 times higher than that from the older humus formed by C3 plants. The total CO2-C emission for 16 weeks was 18 g m-2. Fifty-eight percent of the soil respiration originated from maize C. The specific CO2 formation from maize-derived SOC was 8 times higher than that from the older SOC formed by C3 plants. The ratio of DOC production to CO2-C production was three times smaller for the young, maize-derived SOC than for the older humus formed by C3 plants. © WILEY-VCH Verlag GmbH, 2000.}, keywords = {MAIZE; 13C; Soil respiration; DOC; Soil organic matter}, year = {2000}, eissn = {1522-2624}, pages = {157-163} }