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001-es BibID:	BIBFORM097277
035-os BibID:	(cikkazonosító)1339
Első szerző:	Harsányi Endre (agrármérnök)
Cím:	Impact of Agricultural Drought on Sunflower Production across Hungary / Endre Harsányi, Bashar Bashir, Firas Alsilibe, Karam Alsafadi, Abdullah Alsalman, Adrienn Széles, Muhammad Habib ur Rahman, István Bácskai, Csaba Juhász, Tamás Ratonyi, Safwan Mohammed
Dátum:	2021
ISSN:	2073-4433 2073-4433
Megjegyzések:	In the last few decades, agricultural drought (Ag.D) has seriously affected crop production and food security worldwide. In Hungary, little research has been carried out to assess the impacts of climate change, particularly regarding droughts and crop production, and especially on regional scales. Thus, the main aim of this study was to evaluate the impact of agricultural drought on sunflower production across Hungary. Drought data for the Standardized Precipitation Index (SPI) and the Standardized Precipitation Evapotranspiration Index (SPEI) were collected from the CAR BATCLIM database (1961?2010), whereas sunflower production was collected from the Hungarian national statistical center (KSH) on regional and national scales. To address the impact of Ag.D on sunflower production, the sequence of standardized yield residuals (SSYR) and yield losses YlossAD was applied. Additionally, sunflower resilience to Ag.D (SRAg.D) was assessed on a regional scale. The results showed that Ag.D is more severe in the western regions of Hungary, with a significantly positive trend. Interestingly, drought events were more frequent between 1990 and 2010. Moreover, the lowest SSYR values were reported as ?3.20 in the Hajdu-Bihar region (2010). In this sense, during the sunflower growing cycle, the relationship between SSYR and Ag.D revealed that the highest correlations were recorded in the central and western regions of Hungary. However, 75% of the regions showed that the plantation of sunflower is not resilient to drought where SRAg.Dx < 1. To cope with climate change in Hungary, an urgent mitigation plan should be implemented.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Atmosphere. - 12 : 10 (2021), p. 1-18. -
További szerzők:	Bashir, Bashar Alsilibe, Firas Alsafadi, Karam Alsalman, Abdullah Széles Adrienn (1980-) (okleveles agrármérnök) Rahman, Muhammad Habib ur Bacskai István Juhász Csaba (1962-) (környezetgazdálkodási agrármérnök) Rátonyi Tamás (1967-) (agrármérnök) Mohammed Safwan (1985-) (agrármérnök)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM091398
035-os BibID:	(cikkazonosító)1350
Első szerző:	Huzsvai László (talajerőgazdálkodási szakmérnök, agrármérnök)
Cím:	Can Technological Development Compensate for the Unfavorable Impacts of Climate Change Conclusions from 50 Years of Maize (Zea mays L.) Production in Hungary / László Huzsvai, József Zsembeli, Elza Kovács, Csaba Juhász
Dátum:	2020
ISSN:	2073-4433 2073-4433
Megjegyzések:	The goals of our study were to evaluate the historical aspects of maize (Zea mays L.) production in Hungary, and to provide a prognosis for the yield for 2050 based on the trends of temperature, precipitation, and climatic water balance changes. Different climate zones for the period of 1970?2019 were investigated by means of correlation analyses, normality tests, time series analysis, and multiple linear regression analysis. Two well-distinguishable linear trends in the yields were found, the first representing large-scale farming, and the second starting with the change of the socio-economic system in 1989. The annual amount of precipitation showed high variations both spatially and temporally, although no significant change was identified for the last five decades. In the period 1990?2019, not only were higher temperatures characteristic, but the frequency of extreme high temperature values (Tmax > 30 ?C) also increased. We quantified the heat stress, expressing it in heat stress units (HSU, ?C) derived from the heat-sum of the daily maximum air temperature values above 30 ?C. By 2050, the average increase in HSUs may reach 35 ?C. Increasing HSU causes yield depression; according to our estimations, a 1 ?C increase in HSU results in a 23 kg ha?1 yield depression of maize. Taking the unfavorable effect of heat stress and technological development into consideration, the average domestic yield of maize will be 8.2 t ha?1. Our study revealed that without taking technological development into consideration, prediction models may overestimate the adverse effect of climate change on crop production.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk heat stress climate scenario weather variations agrotechnological development
Megjelenés:	Atmosphere. - 11 : 12 (2020), p. 1-21 -
További szerzők:	Zsembeli József (1967-) (agrármérnök) Kovács Elza (1976-) (okleveles vegyész, angol-magyar szakfordító, anyagmérnök MSc) Juhász Csaba (1962-) (környezetgazdálkodási agrármérnök)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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