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001-es BibID:BIBFORM117451
035-os BibID:(cikkazonosító)100323 (WoS)001134137300001 (Scopus)85179467649
Első szerző:Altouma, Ahmed
Cím:An environmental impact assessment of Saudi Arabia's vision 2030 for sustainable urban development : a policy perspective on greenhouse gas emissions / Ahmed Altouma, Bashar Bashir, Behnam Ata, Akasairi Ocwa, Abdullah Alsalman, Endre Harsányi, Safwan Mohammed
Dátum:2024
ISSN:2665-9727
Megjegyzések:Globally, countries are legitimizing actions to curtail the malevolent impacts of environmental degradation. This study examined the interaction between CO2 emissions and selected economic variables within the framework of Saudi Arabia's Vision 2030. The Autoregressive distributed lag model (ARDL) was used to analyze the long-run relationships and short-run dynamics between studied variables (1970-2020). The Mann-Kendall (MK) test revealed a significant (p < 0.05) positive increase of GHGs emissions from all sectors across the KSA. The highest increased were captured at the electricity and heat by 7345454.47 tonnes of carbon dioxide-equivalents/year (p < 0.05). On the hand, the ARDL model indicates that GDP, agriculture, industry, services, and oil production have short-term effects on the environment through CO2 emissions. Therefore, GDP, agriculture, services and oil production contribute to increases in CO2 emissions. While industry contributes to decrease in CO2 emissions. The ARDL model also showed that an increase in GDP of 1 percent increases CO2 emissions by 3.46 percent, while an increase in oil production of 1 percent increases CO2 emissions by 4.04 percent. However, an increase in industry of 1 percent decreases CO2 emissions by 7.25 percent. The output of this research has a policy implication for addressing environmental concerns in the country.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Net-zero emissions
Saudi vision
ARDL
Sustainable societies
Climate change
Megjelenés:Environmental and Sustainability Indicators. - 21 (2024), p. 1-13. -
További szerzők:Bashir, Bashar Ata Behnam (1991-) (Geográfus PhD hallgató) Ocwa, Akasairi (1987-) (Crop scientist) Alsalman, Abdullah Harsányi Endre (1976-) (agrármérnök) Mohammed Safwan (1985-) (agrármérnök)
Pályázati támogatás:TKP2021-NKTA-32
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2.

001-es BibID:BIBFORM098770
035-os BibID:(cikkazonosító)7953 (WOS)000677124200001 (Scopus)85111080828
Első szerző:Benhizia, Ramzi
Cím:Monitoring the Spatiotemporal Evolution of the Green Dam in Djelfa Province, Algeria / Ramzi Benhizia, Yacine Kouba, György Szabó, Gábor Négyesi, Behnam Ata
Dátum:2021
ISSN:2071-1050
Megjegyzések:Green walls and green dams are increasingly being considered as part of many national and international desertification initiatives. This paper studies the spatiotemporal evolution of the green dam in the Moudjbara region (Djelfa Province, Algeria), from 1972 to 2019, by using Landsat imagery, Land Change Modeler, and OpenLand package. The future evolution of pine plantations, for the year 2029, was also forecasted, based on an anthropogenic scenario (i.e., anthropogenic pressure is the main driver of the green dam destruction). Our findings revealed that the green dam project was successful for a few years, but, after that, pine plantations deteriorated significantly, due to forest harvesting, livestock overgrazing, and the proliferation of the pine caterpillar processionary, which destroyed most of the reforestation. Land change modeler predicted a huge degradation of pine plantations for the year 2029, and if the deforestation continues at the same rate, the green dam in the Moudjbara region will disappear during the next few decades. Being aware of this threat, the Algerian authorities are now planning to reforest more than 1.2 million ha under the latest rural renewal policy, by introducing new principles related to sustainable development, fighting desertification, and climate change adaptation. We strongly recommend moving away from the singular tree planting focus, to diversifying desertification control methods.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Aleppo pine
desertification
green dam
green walls
land degradation
Megjelenés:Sustainability. - 13 : 14 (2021), p. 1-15. -
További szerzők:Kouba, Yacine Szabó György (1964-) (geográfus, egyetemi tanár) Négyesi Gábor (1980-) (geográfus) Ata Behnam (1991-) (Geográfus PhD hallgató)
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3.

001-es BibID:BIBFORM110715
035-os BibID:(cikkazonosító)6759 (Scopus)85156120109 (WoS)000979573600001
Első szerző:Czuczor Krisztina (geográfus,társadalomföldrajz)
Cím:The Comprehensive Analysis of the Network of Superstructure Based on Territorial Characteristics of Accommodation and Food and Beverage Service Providers Considering the Financial Crisis and COVID-19: The Case of Bihor County, Romania / Krisztina Czuczor, Gábor Kozma, Zoltán Dorogi, Tianyi Li, Zsolt Radics
Dátum:2023
ISSN:2071-1050
Megjegyzések:This study presents the territorial differences in structure of functioning accommodation and food-and-beverage service providers by their distribution based on registered field of economic activity and financial data on the level of local governments within Bihor County that were classified into four potential destination types. Furthermore, the aim of the research is to identify the concentration of business activities based on their turnover in proportion to the population on the level of local governments using the Hoover-index method for the period of 2005?2020. Lastly, another aim is to examine the efficiency of these hospitality service providers using the Hoover index on their sales revenue in proportion to their labor force between 2005 and 2020. The time frame enabled the examination of the effects of two critical incidents: the financial crisis of 2008 and COVID-19, which impacted the activity of the examined firms in hospitality. As a result, both group of service providers showed a significant increase in number of entities, turnover, and average annual number of employees after 2014. That trend was intensively interrupted by COVID-19, which was not the case for the period of financial crisis. The significance of Oradea and S©anmartin were present as central areas regarding business activities of the examined fields, thus crucially influencing the trends of the county. In the case of territorial inequalities, the two categories showed differing trends, as in the case of efficiency, although lodging services proved to show higher territorial inequalities but better performance.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
territorial development
tourism destination types
Bihor County
Hoover index
COVID-19
financial crisis
Megjelenés:Sustainability. - 15 : 8 (2023), p. 1-28. -
További szerzők:Kozma Gábor (1966-) (geográfus) Dorogi Zoltán (1986-) (okleveles földrajztanár - történelemtanár) Li, Tianyi (1991-) Radics Zsolt (1976-) (történész, geográfus)
Pályázati támogatás:New National Excellence Program
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4.

001-es BibID:BIBFORM100975
035-os BibID:(cikkazonosító)329353 (Scopus)85127005304 (WOS)000774546500001
Első szerző:Heba Marey
Cím:Effects of Using Green Concrete Materials on the CO2 Emissions of the Residential Building Sector in Egypt / Heba Marey, Gábor Kozma, György Szabó
Dátum:2022
ISSN:2071-1050
Megjegyzések:Increasing the rate of construction material consumption has caused significant environmental problems in recent decades, especially the production of ordinary Portland cement (OPC), which has been associated with 8% of the world's human CO2 emissions and is considered the leading binder of concrete. This study aims to investigate the effects of substituting conventional concrete (CC) material with green concrete (GC) in the non-structural concrete works of a residential building in New Borg El-Arab City, Egypt. It attempts to establish what the effects are of using GC on cement, natural aggregates, and CO2 emissions in the design phase. By using a design-based solution (DBS), we began with redesign, reduce, reselect, reuse, and recycle strategies to find an optimal solution for applying recycle aggregate concrete (RAC) as a replacement material in selected building parts, such as the internal floor, external sidewalk, entrance steps, and wall boundary. AutoCAD software and 3Dmax were used to modify the original design and obtain two design references with four different scenarios. Comparative analyses were applied to investigate the effects of different concrete materials. The results show a reduction of about 19.4% in cement consumption in terms of the total concrete of the building and a 44.5% reduction in CO2 emissions due to the reduction of cement in specific building parts. In addition, this solution decreased natural coarse aggregate (NCA) consumption by 23.7% in the final concrete. This study recommends that GC materials close the loop of cementitious material consumption to reduce environmental impacts and achieve sustainability in the Egyptian building sector.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Sustainability. - 14 (2022), p. 1-22. -
További szerzők:Kozma Gábor (1966-) (geográfus) Szabó György (1964-) (geográfus, egyetemi tanár)
Pályázati támogatás:TKP2021-NKTA-32
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5.

001-es BibID:BIBFORM116003
035-os BibID:(cikkazonosító)15820
Első szerző:Tǎtar, Corina-Florina
Cím:How Gender, Culture, and Economy Influence Field of Study Preferences in Higher Education: Exploring Gender Gaps in STEM, AHSS, and Medicine among International Students / Corina Florina Tătar, Marius Ioan Tătar, János Pénzes, George W. White
Dátum:2023
ISSN:2071-1050
Megjegyzések:International female and male students' segregation per academic fields of study designates an important challenge for educational equity, diversity, and gender equality in tertiary education institutions worldwide. This study probes the determinants of study field choice among 984 students from 57 countries who enrolled at the University of Oradea, Romania, during 2022?2023. By incorporating gender approaches and concepts within broader economic and cultural theories, we utilized the bivariate analysis and multinominal regression models to scrutinize how students' preferences for STEM (science, technology, engineering, and mathematics), AHSS (arts, humanities, and social sciences), or medicine are influenced by their gender, and the more general cultural and economic attributes of their home country. Our findings enrich the knowledge and understanding of gendered patterns of academic study field choice, providing a cross-cultural and integrative viewpoint that enables us to set forth recommendations to bridge higher education gender gaps.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
gender equality
gender gap
higher education
field of study
international students
STEM
AHSS
medicine
Romania
Megjelenés:Sustainability. - 15 : 22 (2023), p.1-17. -
További szerzők:Tătar, Marius Ioan Pénzes János (1980-) (geográfus) White, George W.
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