TY - CHAP AU - Boczonádi, Imre AU - Pregun, Csaba Zsolt AU - Fehér, Zsolt Zoltán AU - Nagy, Attila AU - Tamás, János ED - Buró, Botond ED - Molnár, Mihály TI - Hidrogeomorfológiai betekintés: új megközelítés a városi patakok mikrobiális állapotának értékelésére T2 - XIX. Kárpát-medencei Környezettudományi Konferencia. Absztrakt füzet PB - MTA Atommagkutató Intézet CY - Debrecen SN - 9789638321602 T3 - Kárpát-Medencei Környezettudományi Konferencia, ISSN 1842-9815 PY - 2024 SP - 134 EP - 135 PG - 2 UR - https://m2.mtmt.hu/api/publication/34797063 ID - 34797063 LA - English DB - MTMT ER - TY - CHAP AU - Gorliczay, Edit AU - Montvai, Kornélia AU - Szabó, András AU - Tamás, János AU - Nagy, Attila ED - Buró, Botond ED - Molnár, Mihály TI - Rukkola (Eruca Vesicaria Subsp. Sativa) termesztése aeropónikus körülmények között T2 - XIX. Kárpát-medencei Környezettudományi Konferencia. Absztrakt füzet PB - MTA Atommagkutató Intézet CY - Debrecen SN - 9789638321602 T3 - Kárpát-Medencei Környezettudományi Konferencia, ISSN 1842-9815 PY - 2024 SP - 45 EP - 46 PG - 2 UR - https://m2.mtmt.hu/api/publication/34795978 ID - 34795978 LA - English DB - MTMT ER - TY - JOUR AU - Guizani, Douraied AU - Budayné Bódi, Erika AU - Tamás, János AU - Nagy, Attila TI - Enhancing Water Balance Assessment in Urban Areas through High-Resolution Land Cover Mapping: Case Study of Debrecen, Hungary JF - ENVIRONMENTAL CHALLENGES J2 - ENVIRONMENTAL CHALLENGES VL - 15 PY - 2024 PG - 17 SN - 2667-0100 DO - 10.1016/j.envc.2024.100906 UR - https://m2.mtmt.hu/api/publication/34768271 ID - 34768271 AB - Land cover (LC) mapping in urban areas is one of the core applications in remote sensing (RS), and it plays an important role in modern urban planning and management. In order to support up-to-date simplified water balance calculation, LC modelling needs to be developed for precise and high-resolution operations to monitor rapidly expanding urban areas. This study provides a spatial decision support tool for urban water balance calculations considering hydrological parameters at pixel scale. The study is aimed to create a high-resolution LC map for more precise water balance calculations to identify and link the most important parameters, such as crop coefficient, for estimating crop evapotranspiration, runoff coefficients, and infiltration rate. Meteorological data from 2016 to 2019 were involved in evapotranspiration estimation. The study site is Debrecen, a city in northeast Hungary with a population of about 200,000. By integrating Landsat 8 imagery, Google Earth (GE), and Corine Land Cover (CLC), a LC map of 30 m resolution was created with 81.2 % overall accuracy (OA) and a coefficient of kappa greater than 0.78. For the classification of Landsat 8, seven classes were assigned (forests, sealed surfaces, areas with crop cover, grassland, semi-sealed surfaces, bare ground and surface water bodies). Classification results were validated by 101 ground truth samples using other satellite images and aerial photographs. Water balance parameters (i.e. surface runoff, infiltration and evapotranspiration) were then defined and calculated at a pixel scale and for larger areas. The technique developed in this study can also be utilized in other urban areas. LA - English DB - MTMT ER - TY - JOUR AU - Nagy, Attila AU - Szabó, Andrea AU - Diana, Quintín Escobar AU - Tamás, János TI - Evaluation of spectral data based soil organic carbon content estimation models in VIS-NIR JF - SOIL SCIENCE ANNUAL J2 - SOIL SCI ANN VL - 75 PY - 2024 IS - 1 SN - 2300-4967 UR - https://m2.mtmt.hu/api/publication/34754157 ID - 34754157 LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Andrea AU - Tamás, János AU - Nagy, Attila TI - Abiotikus stressz spektrális értékelésének módszertana alma lombozaton JF - KERTGAZDASÁG (1998) J2 - KERTGAZDASÁG (1998) VL - 56 PY - 2024 IS - 1 SP - 3 EP - 18 PG - 16 SN - 1419-2713 UR - https://m2.mtmt.hu/api/publication/34719524 ID - 34719524 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Tóth, Florence Alexandra AU - Magyar, Tamás AU - Tamás, János AU - Nagy, Péter Tamás TI - Improving the Nutrient Management of an Apple Orchard by Using Organic-Based Composites Derived from Agricultural Waste JF - HORTICULTURAE J2 - HORTICULTURAE VL - 10 PY - 2024 IS - 2 SP - 1 EP - 14 PG - 14 SN - 2311-7524 DO - 10.3390/horticulturae10020172 UR - https://m2.mtmt.hu/api/publication/34583942 ID - 34583942 AB - Extreme weather and the declining organic matter content of soils cause serious sustainability problems in agriculture. Therefore, soil conditioner composites (chicken manure, bentonite and super absorbent polymer) were developed and tested in an integrated apple orchard characterized by poor nutrient and water management to study their effects on soil, leaf and fruit attributes. Composites with higher doses of additives increased soil organic carbon by 4–9 g/kg, and organic nitrogen by 1.8–2.8 g/kg compared to the control (p < 0.05). Similarly, soil nitrate content steadily increased from 8–10 mg/kg to 30–38 mg/kg by composites. Composites effectively elevated leaf N, K, Ca, and Mg while not affecting the leaf P (p < 0.05). Treatments significantly enhanced the yields by 14–63% on average compared to the control. Treatments with bentonite improved the fruit weight by 2% and 24% compared to the chicken manure. On average, composite treatments increased the titratable acidity of fruits by 26–43% compared to the control and 0.5–10% compared to the treatment containing solely chicken manure. Overall, the developed organic-based composites are able to cope with changing circumstances that could help mitigate the negative effects of climate change, especially in arid areas, thus contributing to sustainable nutrient management. LA - English DB - MTMT ER - TY - JOUR AU - Gorliczay, Edit AU - Tamás, János AU - Nagy, Attila TI - Non-invasive indicators in the poultry manure composting process JF - International Journal of Recycling of Organic Waste in Agriculture J2 - International Journal of Recycling of Organic Waste in Agriculture VL - 13 PY - 2024 IS - 1 SN - 2195-3228 DO - 10.57647/j.ijrowa.2024.1301.12 UR - https://m2.mtmt.hu/api/publication/34443375 ID - 34443375 LA - English DB - MTMT ER - TY - JOUR AU - Magyar, Tamás AU - Németh, Bence AU - Tamás, János AU - Nagy, Péter Tamás TI - Improvement of N and P ratio for enhanced biomass productivity and sustainable cultivation of Chlorella vulgaris microalgae JF - HELIYON J2 - HELIYON VL - 10 PY - 2024 IS - 1 SP - 1 EP - 14 PG - 14 SN - 2405-8440 DO - 10.1016/j.heliyon.2023.e23238 UR - https://m2.mtmt.hu/api/publication/34415026 ID - 34415026 AB - Microalgae cultivation could contribute to the achievement of several sustainable development goals (SDGs). However, cultivating Chlorella vulgaris, like any other microalgae, is challenging due to various biotic, abiotic and process related factors that can affect its growth and biomass productivity. Nutrient availability, particularly N and P, and their ratio play a crucial role in building cellular structures and maintaining metabolic processes, determining basically the maximum achievable biomass productivity under given circumstances. The present article aims to improve the N and P ratio to enhance the biomass productivity of Chlorella vulgaris microalgae as well as to characterize the biomass growth kinetics that can be used for prediction purposes. The results showed that the nutrient solutions prepared with increased nitrate concentration (T1 – N: P = 55:1 and T3 – N:P = 28:1) promoted chlorophyll formation and significantly outperformed the control sample (BG-11 – N:P = 35:1) with 192% and 183%, leading to higher biomass productivity with 1160 μg L− 1 and 1103 μg L− 1 , respectively. Moreover, a strong positive correlation was revealed (0.81) between phosphate concentration and microalgae activity rate, indicating the role of phosphorous in energy transfer, resulted in stimulated microalgae activity rates with 71.2% and 70.66% in the phosphate-increased nutrient solutions (T2 – N:P = 14:1 and T3 – N:P = 28:1). In addition, an exponential equation was introduced to characterize the biomass growth kinetics, of which the theoretically achievable maximum chlorophyll concentration (CTAM) and the theoretical cultivation time (tcultivation) were determined for the tested nutrient solutions with variable N:P ratio. It was concluded, that the higher the N:P ratio, the higher the CTAM is, nevertheless the absolute concentration of these nutrients need to be considered as well. The introduced two key parameters could provide valuable information for decision makers regarding the optimization of growth conditions, nutrient supplementation, and harvesting, additionally decreasing the production costs and making the cultivation cycles more effective and sustainable. LA - English DB - MTMT ER - TY - JOUR AU - Guizani, Douraied AU - Budayné Bódi, Erika AU - Tamás, János AU - Nagy, Attila TI - Land cover modelling with Sentinel 2 in water balance calculations of urban sites JF - JOURNAL OF CENTRAL EUROPEAN GREEN INNOVATION J2 - J CENT EUR GREEN INNOV VL - 11 PY - 2023 IS - 3 SP - 70 EP - 83 PG - 14 SN - 2064-3004 DO - 10.33038/jcegi.4520 UR - https://m2.mtmt.hu/api/publication/34444229 ID - 34444229 AB - This study investigates how a land cover map is produced using Sentinel 2 satellite images and how the resulting map is integrated with the calculation of hydrological parameters. Due to its capacity to deliver high-resolution spatial data, satellite imagery is increasingly being used for land cover mapping (1). The process involves several stages, including pre-processing of the Sentinel 2 imagery, image classification using machine learning algorithms, and post- processing of the classified image to generate a land cover map. The resulting land cover map is then integrated with hydrological parameters such as precipitation, evapotranspiration, and soil characteristics to calculate various hydrological parameters. Debrecen, north-east Hungary is the study area. This study's method is suitable for usage in other cities. Understanding the relationship between land cover and water availability requires the integration of the land cover map with hydrological parameters (2). The study demonstrates the potential of using remote sensing data for hydrological studies and highlights the importance of integrating various data sources for accurate estimation of hydrological parameters. The results show that the land cover classes have a significant impact on the water balance of urban sites. This study outlines the key steps involved in creating a land cover map using Sentinel 2 satellite imagery and integrating it with hydrological parameters calculation. The application of this strategy supports sustainable water management techniques and offers insightful information about a region's hydrological processes LA - English DB - MTMT ER - TY - CONF AU - David, Busa AU - Boczonádi, Imre AU - Gorliczay, Edit AU - Csótó, András AU - Csüllög, Kitti AU - Tamás, János TI - Effect of poultry manure-based compost teas on the growth of Aspergillus niger T2 - 28. Tiszántúli Növényvédelmi Fórum: Program - Összefoglalók PB - Növényvédelem Oktatásának Fejlesztéséért Alapítvány. NOFA C1 - Debrecen PY - 2023 SP - 135 EP - 136 PG - 2 UR - https://m2.mtmt.hu/api/publication/34396225 ID - 34396225 LA - English DB - MTMT ER -