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Adrienn Horváth
Institute of Environmental and Earth Sciences Faculty of Forestry University of Sopron Sopron Hungary

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Original article
Published: 17 August 2021 in Coloration Technology
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Ecological nanosilver-based colours were biosynthesised from the heartwood of European yew (Taxus baccata) trees for the dyeing of flax woven fabrics through the implementation of in situ synthesis protocols. The produced lighter brown yellow to darker brown-yellow coloured nanosilver particles on flax woven fabrics were characterised in terms of morphological observations, metallic compositions, elemental mapping, chemical interactions, the presence of silver nanoparticle (AgNP) concentrations and colour characteristics with associated performances. The presence of AgNPs was clearly observed by morphological studies of the coloured substrates. Quantitative analysis of the products also confirmed the significant presence of AgNPs. The results demonstrate that the uniform dispersions and strong attachments of AgNPs in cellulosic flax woven fabrics are due to surface plasmon resonance characteristics. The incorporation of different concentrations of metallic AgNPs plays a significant role in producing versatile colour appearances on flax woven textiles with improved colour durability. The overall results offer new routes for sustainable structural colourants in the industrial dyeing of cellulosic materials.

ACS Style

K. M. Faridul Hasan; Péter György Horváth; Zsófia Kóczán; Miklós Bak; Adrienn Horváth; Tibor Alpár. Coloration of flax woven fabrics using Taxus baccata heartwood‐mediated nanosilver. Coloration Technology 2021, 1 .

AMA Style

K. M. Faridul Hasan, Péter György Horváth, Zsófia Kóczán, Miklós Bak, Adrienn Horváth, Tibor Alpár. Coloration of flax woven fabrics using Taxus baccata heartwood‐mediated nanosilver. Coloration Technology. 2021; ():1.

Chicago/Turabian Style

K. M. Faridul Hasan; Péter György Horváth; Zsófia Kóczán; Miklós Bak; Adrienn Horváth; Tibor Alpár. 2021. "Coloration of flax woven fabrics using Taxus baccata heartwood‐mediated nanosilver." Coloration Technology , no. : 1.

Journal article
Published: 29 June 2021 in Minerals
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The main purpose of the present study was to monitor actual contamination levels and execute a comparative assessment of results in a mid-sized Hungarian city for two different years. The first citywide soil investigations were completed in 2011. In 2018, the most prominent properties (pH, CaCO3, texture, and trace metals Cd, Co, Cu, Ni, Pb, and Zn) were reanalyzed and were supplemented with mesofauna on selected sites. The available trace metal elements of urban soils showed the following tendency in 2011: Zn > Cu > Pb > Cd > Cr = Ni = Co. In 2018, the previous order changed to Zn > Pb > Cu > Cr > Cd = Ni = Co. Cd and Pb enrichments were found, especially near the M7 motorway. The comparison between 2011 and 2018 revealed soil contamination was, on average, higher in 2011. Soil microarthropod communities were sampled and assessed using abundance data and diversity measurements. Soil biological quality was evaluated with the help of the Soil Biological Quality (QBS-ar) index. Acari and Collembola appeared to be the most abundant, ubiquitous taxa in the samples. Simultaneously, important groups like Symphyla, Protura, and Chilopoda were completely absent from the most polluted sites. For the most part, lower taxa richness, diversity, and QBS-ar index were observed with higher available Cu Zn, and Pb concentrations.

ACS Style

Adrienn Horváth; Péter Csáki; Renáta Szita; Péter Kalicz; Zoltán Gribovszki; András Bidló; Bernadett Bolodár-Varga; Pál Balázs; Dániel Winkler. A Complex Soil Ecological Approach in a Sustainable Urban Environment: Soil Properties and Soil Biological Quality. Minerals 2021, 11, 704 .

AMA Style

Adrienn Horváth, Péter Csáki, Renáta Szita, Péter Kalicz, Zoltán Gribovszki, András Bidló, Bernadett Bolodár-Varga, Pál Balázs, Dániel Winkler. A Complex Soil Ecological Approach in a Sustainable Urban Environment: Soil Properties and Soil Biological Quality. Minerals. 2021; 11 (7):704.

Chicago/Turabian Style

Adrienn Horváth; Péter Csáki; Renáta Szita; Péter Kalicz; Zoltán Gribovszki; András Bidló; Bernadett Bolodár-Varga; Pál Balázs; Dániel Winkler. 2021. "A Complex Soil Ecological Approach in a Sustainable Urban Environment: Soil Properties and Soil Biological Quality." Minerals 11, no. 7: 704.

Preprint content
Published: 04 March 2021
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The main negative global phenomena are climate change, biodiversity loss and biological invasions. Attaining the 2050 climate neutrality target is of great importance in agriculture and forestry. Land use is a significant factor in carbon sequestration from the atmosphere (carbon sink) and can be employed to potentially store carbon for decades. Land use can also contribute to climate change adaptation against aridification, preserve biodiversity, and reduce CO2 and NOx emissions. In addition, growing global environmental problems impact the entire world, which compels society to live with changed circumstances. Nevertheless, negative processes do not affect all territories equally. Some areas are more vulnerable and sensitive to changes, while others are more flexible and demonstrate higher resilience against negative changes. Nature compensates negative global environmental phenomena and people can contribute to this process. This compensation is hard in semi-arid and arid regions of the world, however, in humid regions it needs less effort.

Őrség - one of the southwestern landscape of the Carpathian basin - is a typical example of a humid-mesic climate. Due to its unique ecological, economic, and social characteristics, Őrség shows higher resistance against global changes. The humid-mesic climate and the acid soil with low fertility promote the forest succession on abandoned arable lands and pastures. Due to the warming and the anthropogenic CO2 and NOx forest areas show accelerating growth. High forest coverage (62%), extensive land management, high humidity, high proportion of nature close areas, unique landscape structure, and soft tourism all manifest themselves in higher stability against negative changes. Under these specific site conditions, reviving capacity of forests is relatively high: uncultivated lands quickly become forests without human intervention. Therefore, the best line of action would be to support this natural afforestation process with tree species that are less climate-sensitive and more drought-tolerant. The increasing proportion of forests parallel with the decreasing proportion of uncultivated land reduces the possibility of the invasion of alien plant species. The afforestation process of rural areas is highly supported by the present Hungarian policy. 

Our research aims to enhance the observation that rural landscapes provide great examples for sustainability. These areas have not only remained viable, they also safeguard our future.

ACS Style

Pál Balázs; Imre Berki; Adrienn Horváth. Local example for the compensation of negative global environmental phenomena. 2021, 1 .

AMA Style

Pál Balázs, Imre Berki, Adrienn Horváth. Local example for the compensation of negative global environmental phenomena. . 2021; ():1.

Chicago/Turabian Style

Pál Balázs; Imre Berki; Adrienn Horváth. 2021. "Local example for the compensation of negative global environmental phenomena." , no. : 1.

Preprint content
Published: 04 March 2021
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Determining the particle size distribution of soils helps to monitor the hydrophysical properties of the soil (e.g. water conductivity or water holding capacity). Climate change increases the importance of water retention and permeability, as extreme weather events can severely impair the water supply of drought-prone plant stocks. The amount of water is expected to decrease. At the beginning of the research, we have developed a measurement method to replace the classical “pipette” sedimentation method with the laser diffraction method. The theoretical background of laser diffraction measurements is already known, but its practical application for estimating soil’s water holding capacity is uncommon in detail. The developed, modified Thornthwaite model considers soil properties (e.g. root depth, topsoil layer thickness) and size distribution (silt and clay fraction) of soil particles combined with the most significant soil properties. The pre-sieving of soil aggregates, the pre-treatment (disaggregation and dispersion) of the samples greatly influence the obtained results. In addition to the sedimentation method, instrumental measurements (Mastersizer 3000) were applied with three variants of pre-treatment. For comparison, the results of a Leptosol, a Cambisol, and a Luvisol were prepared for the first modified Thornthwaite water balance model. Significant differences appeared especially during drought periods that could be a basis for studying the drought sensitivity of soils. By the development of our method, the water holding capacity of soil can be estimated; therefore, adapting forest management could be planned against climatic and pedological transformations.

ACS Style

Adrienn Horváth; András Makó; András Bidló; Orsolya Szecsődi. Estimation of water holding capacity of soils using data from different types of particle size analyses. 2021, 1 .

AMA Style

Adrienn Horváth, András Makó, András Bidló, Orsolya Szecsődi. Estimation of water holding capacity of soils using data from different types of particle size analyses. . 2021; ():1.

Chicago/Turabian Style

Adrienn Horváth; András Makó; András Bidló; Orsolya Szecsődi. 2021. "Estimation of water holding capacity of soils using data from different types of particle size analyses." , no. : 1.

Preprint content
Published: 04 March 2021
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Kaposvár is a developing middle-size city in the middle of South-western Hungary surrounded by mountains and forested areas. Due to its location and natural surroundings, the city strives to achieve close-to-nature urban development. Sustainable urban management, increasing green space, promoting carbon neutrality, adaptation to the challenges of climate change, reducing emissions are the main aims of the development. For support, city-wide investigations began last year to make further suggestions for future direction based on measurements and experience. A foundational survey was conducted to characterize the conditions of urban soils and urban plantations; thus, it would have a proper space in the city’s climate strategy and settlement development concept in the future. Soil properties (artefacts, pH, texture, CaCO3) and trace metal concentrations (Pb, Cu, Zn, Ni, Cr, Sn, Cd, Co) were measured as well. Compared to the actual condition of the natural environment, the soil-changing effect of the city became visible. For changed soil conditions, trees should be chosen that are well adapted to this changing environment. The city is currently afforesting its area; however, it wants to increase the number of trees planted in the future. This is especially justified in areas where there are many overgrown, old, diseased trees in its hundred-year-old parks and tree lines. Choosing the right tree species is not only an aesthetic consideration, but it can also affect the condition of the soils in the environment. We also considered the effects of heavy metals pollution on vegetation important, so we took samples from the trees leaves in many parts of the city and measured the total metal content they absorbed. To comparison, the nearby soil test points showed a correlation between leaves pollution levels in several cases. Based on the results, the heavy metal uptake capacity of the different tree species became comparable. It can be used effectively in the selection of tree species for future afforestation, so that afforestation can also play a role in soil protection and city climate maintenance in the future.

ACS Style

Máté Katona; Adrienn Horváth. Experiences of a nature-based urban development on the example of a Hungarian city. 2021, 1 .

AMA Style

Máté Katona, Adrienn Horváth. Experiences of a nature-based urban development on the example of a Hungarian city. . 2021; ():1.

Chicago/Turabian Style

Máté Katona; Adrienn Horváth. 2021. "Experiences of a nature-based urban development on the example of a Hungarian city." , no. : 1.

Preprint content
Published: 03 March 2021
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Crop production is applied on about half of Hungary’s land area, which amounts to approximately 4.5 million hectares. The agricultural activity has significant environmental impacts.

Our work aims the time series investigation of the impacts of large-scale agricultural cultivationon environment and primarily on climate change inthe test area by applying environmental life cycle assessment (LCA) method.

The investigated area of Lajta Project can be found in the triangle formed by the settlements Mosonszolnok, Jánossomorja and Várbalog, in the north-western corner of Hungary, in Győr-Moson-Sopron county. The area has intense agri-environment characteristics, almost entirely lacking of grasslands and meadows.

We were looking for the answer to the question “To what extent does agricultural activity on this area impact the environment and how can it contribute to climate change during a given period?” The selection of the plants included in the analysis was justified by their significant growing area. We analysed the cultivation data of 5 crops: canola, winter barley, winter wheat, green maize and maize. Material flows of arable crop production technologies were defined in time series by the agricultural parcel register data. These covered the size of the area actually cultivated, the operational processes, records on seeds, fertilizer and pesticide use and harvest data by parcels. The examined environmental inventory database contained also the fuel consumption and lubricating oil usage of machine operations, and the water usage of chemical utilization.

In the life cycle modelling of cultivation, we examined 13 years of maize, 20 years of green maize, 20 years of winter barley, 18 years of winter wheat and 15 years of canola data calculated on 1 ha unit using GaBi life cycle analysis software.

In addition, we also calculated by an average cultivation model for all cultivated plants with reference data to 1 ha and 1 year period.

We applied methods and models in our life cycle impact assessment. According to the values of the impact categories, we set up the following increasing environmental ranking of plant cultivation: (1) canola has minimum environmental impacts followed by (2) green maize and (3) maize with slightly higher values, (4) winter barley has 6 times higher values preceded by (5) winter wheat with a slight difference. The previous environmental ranking of the specific cultivated plants’ contribution was also confirmed as regards the overall environmental impact: canola (1.0%) – green maize (4.9%) – maize (7.1%) – winter barley (43.1%) – winter wheat (44.0%).

Environmental impact category indicator results cumulated to total cultivation periods and total crop growing areas (quantitative approach) display the specific environmental footprints by crops. Increasing environmental ranking of environmental impacts resulted from cultivating the sample area is the following: (1) canola – (2) maize – (3) green maize – (4) winter barley – (5) winter wheat. The slight difference resulted in the rankings in quantitative approach according to the rankings of territorial approach on the investigated area is due to the diversity of cultivation time factor and the crop-growing parameter of the specific crops.

Acknowledgement: Our research was supported by the „Lajta-Project”.

ACS Style

András Polgár; Karolina Horváth; Imre Mészáros; Adrienn Horváth; András Bidló; Sándor Faragó; Veronika Elekné Fodor. Investigation of the two-decade environmental impact of large-scale agricultural cultivation and its impact on climate change in the Lajta-Project. 2021, 1 .

AMA Style

András Polgár, Karolina Horváth, Imre Mészáros, Adrienn Horváth, András Bidló, Sándor Faragó, Veronika Elekné Fodor. Investigation of the two-decade environmental impact of large-scale agricultural cultivation and its impact on climate change in the Lajta-Project. . 2021; ():1.

Chicago/Turabian Style

András Polgár; Karolina Horváth; Imre Mészáros; Adrienn Horváth; András Bidló; Sándor Faragó; Veronika Elekné Fodor. 2021. "Investigation of the two-decade environmental impact of large-scale agricultural cultivation and its impact on climate change in the Lajta-Project." , no. : 1.

Case study
Published: 19 November 2020 in SN Applied Sciences
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Soils of industrial regions are more sensitive to transfer and accumulate anthropogenic pollution, especially in the case of a Havaria. The environmental effects of three aluminium plants—a working plant (Tajikistan), a storage plant (Slovakia) and a Havaria-affected plant (Hungary)—were examined by the determination of the contamination levels. In addition, the research focus was on to identify and compare the topsoil chemical properties near the aluminium plants and to assess the effects of the red mud accident in Hungary (Ajka), by analysing contaminated soil in this particular area. Using X-ray fluorescence (XRF) spectroscopy analysis, amount of 9 toxic metals in the shallow topsoil (0–20, 20–40 cm) from industrial areas were measured. Considering all of the studied areas around aluminium plants, extreme concentrations of Cd (1591.20 mg kg−1), Pb (2514 mg kg−1), Cu (1362.67 mg kg−1), Zn (1476.02 mg kg−1), Ni (1142.95 mg kg−1), Co (1295.81 mg kg−1), Cr (1379.69 mg kg−1), Fe (24,861.73 mg kg−1), and Al (18,221.60 mg kg−1) were still recorded in Hungary, and the lowest concentrations were found in Žiar nad Hronom (Slovakia). Results showed that the concentration of heavy metals is significant in all investigated areas, even up to 5 years after the accident in Hungary. This level of soil contamination is able to damage plants and trees which consequently can lead to soil erosion and deforestation.

ACS Style

Oqil Rasulov; Marián Schwarz; Adrienn Horváth; Firuz Zoirov; Nuridini Fayz. Analysis of soil contamination with heavy metals in (the three) highly contaminated industrial zones. SN Applied Sciences 2020, 2, 1 -15.

AMA Style

Oqil Rasulov, Marián Schwarz, Adrienn Horváth, Firuz Zoirov, Nuridini Fayz. Analysis of soil contamination with heavy metals in (the three) highly contaminated industrial zones. SN Applied Sciences. 2020; 2 (12):1-15.

Chicago/Turabian Style

Oqil Rasulov; Marián Schwarz; Adrienn Horváth; Firuz Zoirov; Nuridini Fayz. 2020. "Analysis of soil contamination with heavy metals in (the three) highly contaminated industrial zones." SN Applied Sciences 2, no. 12: 1-15.

Journal article
Published: 01 December 2019 in Agrokémia és Talajtan
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Summary During the research, we studied the soil conditions in Zala County's forests and examined the effect on the growth of beech forests on these conditions. Data of National Forest Data Base (NFDB) were analysed for investigation. Most of the forests in Zala County are situated less than 150 m above sea level, their location and topography is very diverse. In most of the forests the groundwater level is deeply beneath the surface so the forests can utilize only the amount of precipitation. In accordance with the geological and climatic conditions, Luvisols were formed predominantly, especially the clayic Luvisols and the gleyic Luvisols are the most typical. In addition, there are still Cambisols and stagnic Luvisols as well. In a small percentage, there are forest stands on rendzinic Leptosols, Vertisol, Regosol and Histosol. According to the favourable parent material, forests have got a deep or medium thickness of soil and the typical texture is loam. Based on the research, soil layer thickness and texture had significant impact on the growth of beech forest stands in terms of soil properties.

ACS Style

András Bidló; Adrienn Horváth; Gábor Veperdi. The soil conditions of the forests of Zala County and their impact on the growth of beech. Agrokémia és Talajtan 2019, 68, 1 -13.

AMA Style

András Bidló, Adrienn Horváth, Gábor Veperdi. The soil conditions of the forests of Zala County and their impact on the growth of beech. Agrokémia és Talajtan. 2019; 68 (Supplement):1-13.

Chicago/Turabian Style

András Bidló; Adrienn Horváth; Gábor Veperdi. 2019. "The soil conditions of the forests of Zala County and their impact on the growth of beech." Agrokémia és Talajtan 68, no. Supplement: 1-13.

Journal article
Published: 21 June 2019 in Journal of Environmental Management
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Urbanization and related environmental pollution have strong effects on stream systems by inducing short duration high-peak floods, raised levels of nutrients and contaminants, altered channel geomorphology, sediment dynamics, and reduced biotic richness. The main purpose of this current study is to detect stream contamination levels in a mid-sized Hungarian city by comparing the results of two separate years (2011, 2018). Discharge, channel geomorphology, and water quality parameters were measured, and load-based contamination was calculated for the city's main watercourse (Gaja Brook). The pH, CaCO3, texture, and heavy metal contents – Cd, Co, Cu, Ni, Pb, and Zn – were reanalysed in the sediment for both investigated years. For comparison, enrichment factors were used to determine sediment accumulation. As a complex parameter, biological water quality was also determined using BMWP and MMCP protocols in 2018. The results show that conductivity and the nutrient concentrations were higher, but the discharge values were lower in 2011 than in 2018. The nitrate load doubled both times in the brook between the first and the last sampling sites. The enrichment factors decreased or stagnated when the values of the two years were compared, but severe enrichment of Cd was detected in the middle of the city and south of the city. The aquatic macroinvertebrate fauna structure defined clean, but slightly impacted watercourses north and south of the city as well, but the abundance and presence of sensitive taxa differed at the sampling sites. Székesfehérvár has better than expected water quality, which can be attributed to the good ecological states of the hydromorphology and the streamside zone.

ACS Style

Renáta Szita; Adrienn Horváth; Dániel Winkler; Péter Kalicz; Zoltán Gribovszki; Péter Csáki. A complex urban ecological investigation in a mid-sized Hungarian city – SITE assessment and monitoring of a liveable urban area, PART 1: Water quality measurement. Journal of Environmental Management 2019, 247, 78 -87.

AMA Style

Renáta Szita, Adrienn Horváth, Dániel Winkler, Péter Kalicz, Zoltán Gribovszki, Péter Csáki. A complex urban ecological investigation in a mid-sized Hungarian city – SITE assessment and monitoring of a liveable urban area, PART 1: Water quality measurement. Journal of Environmental Management. 2019; 247 ():78-87.

Chicago/Turabian Style

Renáta Szita; Adrienn Horváth; Dániel Winkler; Péter Kalicz; Zoltán Gribovszki; Péter Csáki. 2019. "A complex urban ecological investigation in a mid-sized Hungarian city – SITE assessment and monitoring of a liveable urban area, PART 1: Water quality measurement." Journal of Environmental Management 247, no. : 78-87.

Journal article
Published: 01 October 2018 in Science of The Total Environment
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Despite the advanced activity of urban soil research, comparison of available trace metal contents in the soil of settlements has not yet been well investigated. First aim of research was the comparison of human impacts on urban soils in two Hungarian cities with different structure and development. To detect the sources of contamination, Szombathely and Sopron cities were separated into urban, suburban and peri-urban areas. Altogether 192 topsoil samples were collected at 0-20 cm in order to measure the physicochemical properties of the soil. Instead of total element contents, plant-available trace metal concentrations - Cd, Co, Cu, Ni, Pb, Zn - were determined using ICP-OES method. Due to different geological conditions, urban soils of the investigated settlements had similar properties in the case of pH, CaCO and texture. In the case of plant available trace metals, limit excesses were found in urban and peri-urban areas mostly, but high values were recorded in the suburb. The amount of Cd, Co and Ni were negligible. Downtown area was the most contaminated in both cities, but extremes appeared in suburban areas. In Szombathely, Cu values were 90 mg Cu/kg). The samples taken alongside busy roads near the city centre were Pb-contaminated due to traffic. The Pb concentration decreased slightly towards the suburban areas of the cities. The Zn level exceeded 40 mg Zn/kg in soils taken from the watercourses of Szombathely. The highest trace metal pollution levels were recorded in soils of public parks of Sopron. Urban soils of Szombathely were more homogenized than urban soils of Sopron. Based on statistical analyses and comparison of the relations of urban, suburban, and peri-urban areas of Sopron to Szombathely, Szombathely's urban soils show more homogeneity.

ACS Style

Adrienn Horváth; Péter Kalicz; Andrea Farsang; Pál Balázs; Imre Berki; András Bidló. Influence of human impacts on trace metal accumulation in soils of two Hungarian cities. Science of The Total Environment 2018, 637-638, 1197 -1208.

AMA Style

Adrienn Horváth, Péter Kalicz, Andrea Farsang, Pál Balázs, Imre Berki, András Bidló. Influence of human impacts on trace metal accumulation in soils of two Hungarian cities. Science of The Total Environment. 2018; 637-638 ():1197-1208.

Chicago/Turabian Style

Adrienn Horváth; Péter Kalicz; Andrea Farsang; Pál Balázs; Imre Berki; András Bidló. 2018. "Influence of human impacts on trace metal accumulation in soils of two Hungarian cities." Science of The Total Environment 637-638, no. : 1197-1208.

Journal article
Published: 13 July 2018 in Science of The Total Environment
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As one of the most severe ecological disasters ever to take place in Europe, the 2010 red mud accident has left behind long-term environmental impact, prompting the need for monitoring of soil biodiversity. Red mud (wet storage solution) can be regarded as a complex mixture of contaminants due to its extreme alkalinity and the presence of potentially toxic trace elements. After-effect investigations on soil properties and soil microarthropods were carried out in three distinct habitat types (agricultural land, grassland, woodland) in the red mud affected area. Soils in the red mud affected area were moderately to strongly alkaline (pH 7.5 to 8.5). Total content of trace metals Cd, Ni, Cr exceeded threshold concentrations for soil. Acari and Collembola were by far the most abundant taxa, while important groups like Pauropoda, Protura and Symphyla were completely absent from the samples of red mud affected plots. These observations were also reflected by the low values of the soil biological quality (QBS-ar) index. Independently of habitat types, total collembolan abundance tended to be lower in the contaminated area when compared with nearby control samples. Typical species distribution of Collembola communities in the contaminated area generally included one or two very common and abundant species and more, relatively rare species of low abundance. In the red mud affected open habitats, a distinct eudominance of Brachystomella parvula and Parisotoma notabilis was observed; whereas in contaminated woodland Parisotoma notabilis formed the bulk of the community with Sphaeridia pumilis, Folsomia manolachei and F. quadrioculata being subdominant. Species sensitive to alkalinity and red mud components (e.g. Hypogastrura vernalis, Lepidocyrtus tomosvaryi) were completely absent or were present only in limited numbers in the contaminated samples.

ACS Style

Daniel Winkler; Andras Bidló; Bernadett Bolodár-Varga; Ádám Erdő; Adrienn Horváth. Long-term ecological effects of the red mud disaster in Hungary: Regeneration of red mud flooded areas in a contaminated industrial region. Science of The Total Environment 2018, 644, 1292 -1303.

AMA Style

Daniel Winkler, Andras Bidló, Bernadett Bolodár-Varga, Ádám Erdő, Adrienn Horváth. Long-term ecological effects of the red mud disaster in Hungary: Regeneration of red mud flooded areas in a contaminated industrial region. Science of The Total Environment. 2018; 644 ():1292-1303.

Chicago/Turabian Style

Daniel Winkler; Andras Bidló; Bernadett Bolodár-Varga; Ádám Erdő; Adrienn Horváth. 2018. "Long-term ecological effects of the red mud disaster in Hungary: Regeneration of red mud flooded areas in a contaminated industrial region." Science of The Total Environment 644, no. : 1292-1303.

Journal article
Published: 10 July 2018 in Forests
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This paper analyses the recent recurring dieback and growth decline of Black pine (P. nigra Arn. var austriaca) in the Keszthely mountains of south-west Hungary, and their relations to water deficits due to droughts. These relations were studied in five stands with low soil water storage capacity for the period 1981–2016. The vitality was assessed using 60 tree-ring samples and changes in remotely sensed vegetation activity indices, i.e., the normalized difference vegetation index (NDVI) and the normalized difference infrared index (NDII). Water deficit was estimated by using meteorological drought indices such the standardized precipitation–evapotranspiration index (SPEI) and the forestry aridity index (FAI), as well as the relative extractable water (REW), calculated by the Brook90 hydrological model. Results revealed a strong dependency of annual tree ring width on the amount of water deficit as measured by all the above estimators, with the highest correlation shown by the summer REW. Droughts also showed a long-term superimposed effect on tree growth. NDII seemed to be more sensitive to drought conditions than NDVI. The robust dependency of tree growth on the summer water availability combined with the projected increasing aridity might lead to decreasing growth of Black pine in Hungary towards the end of the century. We thus argue that the suggestion by several papers that Black pine can be a possible substitute species in the Alpine and Mediterranean region in the future should be revisited.

ACS Style

Norbert Móricz; Balázs Garamszegi; Ervin Rasztovits; András Bidló; Adrienn Horváth; Attila Jagicza; Gábor Illés; Zoltán Vekerdy; Zoltán Somogyi; Borbála Gálos. Recent Drought-Induced Vitality Decline of Black Pine (Pinus nigra Arn.) in South-West Hungary—Is This Drought-Resistant Species under Threat by Climate Change? Forests 2018, 9, 414 .

AMA Style

Norbert Móricz, Balázs Garamszegi, Ervin Rasztovits, András Bidló, Adrienn Horváth, Attila Jagicza, Gábor Illés, Zoltán Vekerdy, Zoltán Somogyi, Borbála Gálos. Recent Drought-Induced Vitality Decline of Black Pine (Pinus nigra Arn.) in South-West Hungary—Is This Drought-Resistant Species under Threat by Climate Change? Forests. 2018; 9 (7):414.

Chicago/Turabian Style

Norbert Móricz; Balázs Garamszegi; Ervin Rasztovits; András Bidló; Adrienn Horváth; Attila Jagicza; Gábor Illés; Zoltán Vekerdy; Zoltán Somogyi; Borbála Gálos. 2018. "Recent Drought-Induced Vitality Decline of Black Pine (Pinus nigra Arn.) in South-West Hungary—Is This Drought-Resistant Species under Threat by Climate Change?" Forests 9, no. 7: 414.

Journal article
Published: 01 January 2018 in Erdészettudományi Közlemények
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ACS Style

Imre Berki; Norbert Móricz; Ervin Rasztovits; Krisztina Gulyás; Balázs Garamszegi; Adrienn Horváth; Pál Balázs; Berki Imre; Móricz Norbert; Rasztovits Ervin; Gulyás Krisztina; Garamszegi Balázs; Horváth Adrienn; Balázs Pál; Lakatos Bence. Fapusztulás és gyorsuló növekedés kocsánytalan tölgyeseinkben. Erdészettudományi Közlemények 2018, 8, 119 -130.

AMA Style

Imre Berki, Norbert Móricz, Ervin Rasztovits, Krisztina Gulyás, Balázs Garamszegi, Adrienn Horváth, Pál Balázs, Berki Imre, Móricz Norbert, Rasztovits Ervin, Gulyás Krisztina, Garamszegi Balázs, Horváth Adrienn, Balázs Pál, Lakatos Bence. Fapusztulás és gyorsuló növekedés kocsánytalan tölgyeseinkben. Erdészettudományi Közlemények. 2018; 8 (1):119-130.

Chicago/Turabian Style

Imre Berki; Norbert Móricz; Ervin Rasztovits; Krisztina Gulyás; Balázs Garamszegi; Adrienn Horváth; Pál Balázs; Berki Imre; Móricz Norbert; Rasztovits Ervin; Gulyás Krisztina; Garamszegi Balázs; Horváth Adrienn; Balázs Pál; Lakatos Bence. 2018. "Fapusztulás és gyorsuló növekedés kocsánytalan tölgyeseinkben." Erdészettudományi Közlemények 8, no. 1: 119-130.

Original article
Published: 27 August 2016 in Environmental Earth Sciences
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During our investigation, we analyzed the urban soils from stream banks and sediment of Rák Creek in the area of Sopron, Hungary. The aim of this work was the determination of the anthropogenic influence on a given stream that flows through an urban area (in this case through the city). The assumption was that the streamflow becomes increasingly polluted with toxic elements as it passes through Sopron; we tried to determine the extent to which the stream is polluted. We had 72 urban soil samples at 36 points at 0–10 and 10–20 cm depths on 6 sub-catchments for analyzing the background pollution of Rák Creek. In addition, 6 soil samples from the bank and 12 sediment average samples were taken from the dead region and from the thalweg as well. We analyzed the physical and chemical parameters as well as the heavy metals (e.g., Cd, Co, Cu, Pb, Zn and Ni) in all of the samples. Two element fractions, the total (HNO3+H2O2-extractable) and the available (NH4-acetate+EDTA-extractable) were used for element determination. Toxic elements were measured by ICP-OES in the urban soils and the sediments as well. Urban soils of sub-catchments confirmed the following tendency. On the investigated creek points, the Co and Ni values were below the natural background limits (Cototal 4.90–14.53 mg kg−1, Coavailable 0.64–3.12 mg kg−1; Nitotal 10.77–24.61 mg kg−1, Niavailable 0.75–3.21 mg kg−1). Cutotal content was low except in the case of GYORI point. Pbtotal were under the pollution limit, but Pbavailable were higher than the suggested pollution limit (>25 mg kg−1) in the sediment of thalweg and in the soil of the creek bank at the GYORI site. Summarized, GYORI point was the most polluted; this is also confirmed by the enrichment factor (EF). EF for Pb and Zn increased as we moved toward the city. Based on the investigated properties, there were significant differences in heavy metals between the urbanized and non-urbanized areas. The concentrations of heavy metals were higher in the dead region than in the thalweg except for the GYORI samples. According to our results, the city affects the stream and its influence appears in the values: as soon as the stream reaches the city, most of results increase. Therefore, the degree of heavy metal contamination depends mainly on land use.

ACS Style

Adrienn Horváth; R. Szita; A. Bidló; Z. Gribovszki. Changes in soil and sediment properties due the impact of the urban environment. Environmental Earth Sciences 2016, 75, 1211 .

AMA Style

Adrienn Horváth, R. Szita, A. Bidló, Z. Gribovszki. Changes in soil and sediment properties due the impact of the urban environment. Environmental Earth Sciences. 2016; 75 (17):1211.

Chicago/Turabian Style

Adrienn Horváth; R. Szita; A. Bidló; Z. Gribovszki. 2016. "Changes in soil and sediment properties due the impact of the urban environment." Environmental Earth Sciences 75, no. 17: 1211.

Journal article
Published: 01 June 2015 in Agrokémia és Talajtan
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Kutatásunkban arra kerestük a választ, hogy az antropogén tevékenységek milyen hatást gyakorolnak a városi talajokra. Sopron és Szombathely város területén és környékén összesen 192 ponton gyűjtöttünk talajmintákat 0–10 cm és 10–20 cm- es mélységben. A kémiai és fizikai talajtulajdonságok laboratóriumi meghatározása után, az oldható toxikus elemek mennyiségének méréséhez (ICP-OES) Lakanen-Erviö-féle kivonatot (Lakenen & Erviö, 1971) készítettünk. A terepi és a laboratóriumi mérési eredményeket térinformatikai módszerekkel dolgoztuk fel (DigiTerraMap), majd következtetéseket vontunk le a helyszíni adatok, a laboratóriumi értékek és a készített tematikus térképek alapján. A mérések során hat elemet (Co, Cd, Ni, Cu, Zn, Pb) emeltünk ki, melyek kiemelkedő fontosságúak a városi talajokban. A talajminták eredményeinek kiértékelését a Magyarországon hatályos rendeletek határértékei és a Kádár (1998) által javasolt határértékek alapján végeztük. A szombathelyi talajok kémhatása semleges (pH = 6,9), és a toxikus elemek előfordulása magasabb koncentrációban csak néhány esetben volt jellemző. A minták fele nem tartalmazott kalcium-karbonátot. A városközpont felé haladva folyamatosan nőtt a karbonáttartalom, mely erős összefüggést mutatott a kémhatással (felső rétegben: R2 = 0,75; alsó rétegben: R2 = 0,78). A talajok fizikai félesége mindkét rétegben agyagos vályog volt. A nehézfémtartalom alapján jelentős eltérés nincs az egy ponton mért egymás feletti rétegek között. A felső rétegben több pont mutat szennyezettségi határértéket meghaladó értéket. Az alsó rétegben, ugyan kevesebb mintavételi ponton, de magasabbak, sőt bizonyos helyen kiugróak a mért nehézfém értékek. A természetes háttérkoncentrációt nem haladta meg Cd-, Co- és a Ni-tartalom. A Cu-tartalom több esetben nagyobb, mint a természetes háttérkoncentráció, de a szennyezettségi határértéket (40 mg Cu·kg−1) nem érte el. A forgalmas — elsősorban belvárosi — utak mellől gyűjtött talajok a folyamatos terhelés miatt ólommal szennyezettek. Ez a terhelés a külváros felé haladva mérséklődhet, csökkenhet az Pb-tartalom, de a külvárosi savanyú kémhatású területek felé haladva a kisebb forgalomból származó ólomterhelés is veszélyes lehet, az ólom mozgékonyságának növekedésével. Cinkre nézve 14 db minta az első intézkedési határértéket, kettő pedig a 80 mg Zn·kg−1-ot is meghaladta; mely értékeket a Gyöngyös patak parti mintákban találtunk. Összefoglalva úgy véljük, hogy a jövőben a patakparti minták további részletes vizsgálatára kell hangsúlyt fektetni. Ezen felül a városi növények elemzésére is sor kerülhet, mivel a patak mentén parkok, sétányok és pihenőövezetek vannak, tehát a talajszennyezés hatással lehet az emberi egészségre. Az összes elemre nézve a leg-magasabb összterhelést a belvárosi parkok talajának két rétegében mértük. A leve-gőből származó szennyeződések megkötődnek a város zöldfelületein, és bemosód-hatnak a parkosított patakpartok talajába.

ACS Style

Adrienn Horváth; András Bidló. Városi talajok nehézfém vizsgálatai a nyugat-dunántúli régióban (Esettanulmány). Agrokémia és Talajtan 2015, 64, 139 -158.

AMA Style

Adrienn Horváth, András Bidló. Városi talajok nehézfém vizsgálatai a nyugat-dunántúli régióban (Esettanulmány). Agrokémia és Talajtan. 2015; 64 (1):139-158.

Chicago/Turabian Style

Adrienn Horváth; András Bidló. 2015. "Városi talajok nehézfém vizsgálatai a nyugat-dunántúli régióban (Esettanulmány)." Agrokémia és Talajtan 64, no. 1: 139-158.

Journal article
Published: 07 October 2014 in Journal of Soils and Sediments
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In the course of our investigation, we analyzed physical and chemical parameters as well as heavy metal contents in the urban soils of Sopron, Hungary. Our aim was to identify the main feedback effects between the town and its environment. Altogether, 208 samples were collected at 104 sites at depths of 0–10 and 10–20 cm in a standard network. The results have been represented in a GIS system, providing a useful basis for the research. We measured the following chemical and physical parameters: soil pH (pH(H2O), pH(KCl)), calcium carbonate content, particle size distribution, humus content, ethylenediaminetetraacetic acid (EDTA) or diethylenetriaminepentaacetic acid (DTPA) soluble Mn, Cu, Zn, and Fe contents. In addition, 24 heavy metals, including Co, Cd, Cu, Pb, Zn, and Ni, were also measured following the method of Lakanen-Erviö. Relationships between these elements were evaluated in both soil layers. In the downtown, most of the soils we investigated were alkaline. Therefore, the pollution of these soils has not yet leached into deeper layers. The Pb content was very high in both layers throughout the whole area of the town. Urban soils with high Cu content have been found mostly from garden and viticulture areas. Cd contents were the highest in the traffic zones, confirmed by the literature, reaching 3 mg Cd/kg soil. The Co and Zn results were below the Hungarian background and pollution limits (discussed below). According to the results, we have found the highest average values of heavy metals in the soils of parks, possibly originating from traffic contamination, binding in the soil of urban green spaces, thus possibly affecting human health. In the future, a detailed analysis of these polluted green areas will be carried out.

ACS Style

Adrienn Horváth; P. Szűcs; A. Bidló. Soil condition and pollution in urban soils: evaluation of the soil quality in a Hungarian town. Journal of Soils and Sediments 2014, 15, 1825 -1835.

AMA Style

Adrienn Horváth, P. Szűcs, A. Bidló. Soil condition and pollution in urban soils: evaluation of the soil quality in a Hungarian town. Journal of Soils and Sediments. 2014; 15 (8):1825-1835.

Chicago/Turabian Style

Adrienn Horváth; P. Szűcs; A. Bidló. 2014. "Soil condition and pollution in urban soils: evaluation of the soil quality in a Hungarian town." Journal of Soils and Sediments 15, no. 8: 1825-1835.