Találati lista | Tudóstér

1.

001-es BibID:	BIBFORM075898
035-os BibID:	(cikkazonosító)1613 (Wos)000451736300120 (Scopus)85056238502
Első szerző:	Bertalan László (geográfus)
Cím:	Issues of Meander Development: Land Degradation or Ecological Value? The Example of the Sajó River, Hungary / Bertalan László, Novák Tibor József, Németh Zoltán, Rodrigo-Comino Jesús, Kertész Ádám, Szabó Szilárd
Dátum:	2018
ISSN:	2073-4441
Megjegyzések:	The extensive destruction of arable lands by the process of lateral bank erosion is a major issue for the alluvial meandering type of rivers all around the world. Nowadays, land managers, stakeholders, and scientists are discussing how this process affects the surrounding landscapes. Usually, due to a land mismanagement of agroforestry activities or urbanization plans, river regulations are designed to reduce anthropogenic impacts such as bank erosion, but many of these regulations resulted in a degradation of habitat diversity. Regardless, there is a lack of information about the possible positive effects of meandering from the ecological point of view. Therefore, the main aim of this study was to investigate a 2.12 km long meandering sub-reach of Sajó River, Hungary, in order to evaluate whether the process of meander development can be evaluated as a land degradation processes or whether it can enhance ecological conservation and sustainability. To achieve this goal, an archive of aerial imagery and UAV (Unmanned Aerial Vehicle)-surveys was used to provide a consistent database for a landscape metrics-based analysis to reveal changes in landscape ecological dynamics. Moreover, an ornithological survey was also carried out to assess the composition and diversity of the avifauna. The forest cover was developed in a remarkable pattern, finding a linear relationship between its rate and channel sinuosity. An increase in forest areas did not enhance the rate of landscape diversity since only its distribution became more compact. Eroding riverbanks provided important nesting sites for colonies of protected and regionally declining migratory bird species such as the sand martin. We revealed that almost 70 years were enough to gain a new habitat system along the river as the linear channel formed to a meandering and more natural state.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk bank erosion landscape metrics diversity uav Sajó
Megjelenés:	Water. - 10 : 11 (2018), p. 1-21. -
További szerzők:	Novák Tibor (1973-) (geográfus) Németh Zoltán (1976-) (biológus) Rodrigo-Comino, Jesús Kertész Ádám (1948-) Szabó Szilárd (1974-) (geográfus)
Pályázati támogatás:	EFOP-3.6.1-16-2016-00022 EFOP NKFIH 108755 Egyéb ÚNKP-17-3 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

2.

001-es BibID:	BIBFORM105120
035-os BibID:	(WOS)000869106800001 (Scopus)85139856111 (cikkazonosító)11786221221128789
Első szerző:	Mirzaei, Morad
Cím:	Soil Nitrous Oxide Emissions Following Crop Residues Management in Corn-Wheat Rotation Under Conventional and No-Tillage Systems / Morad Mirzaei, Manouchehr Gorji Anari, Arezoo Taghizadeh-Toosi, Mohammad Zaman, Nermina Saronjic, Safwan Mohammed, Szilard Szabo, Andrés Caballero-Calvo
Dátum:	2022
ISSN:	1178-6221
Megjegyzések:	Agricultural activity is the major anthropogenic source of nitrous oxide (N2O) emissions from terrestrial ecosystems. Conservation agriculture including crop residue management can play a key role in enhancing soil resilience to climate change and mitigating N2O emissions. We investigated the effects of crop residue rates, including 100 % (R100), 50 % (R50), and residue removal (R0), on N2O emissions in corn-wheat rotation under conventional (CT) and no-tillage (NT) systems. The key factors evaluated affecting N2O emissions included soil temperature, soil moisture, soil ammonium, and soil nitrate concentrations. Results showed that the N2O emissions increased with the increasing rate of residue under both CT and NT systems. Both R100 and R50 significantly (p?<?.05) increased the N2O emissions compared to R0 during the annual rotation cycle. Soil moisture and mineral nitrogen (ammonium and nitrate) were the main driving factors that stimulated N2O emission in both CT and NT systems. In the NT and CT systems, cumulative N2O emissions showed a significant increase with R50 (+75.5 % in NT, +36.5 % in CT) and R100 (+134 % in NT, +40 % in CT) as compared to R0. Furthermore, no significant differences were found between R100 and R50 in the CT system, while in the NT system significant increases were observed for R100 compared to R50. Overall, our study justified as a first approach only during the first year that crop residue removal led to decreased N2O emissions under semi-arid conditions. However, due to the deteriorating impact of crop residue removal on crop productivity and soil C sequestration, this management method cannot be considered a sustainable agronomic practice. We suggest long-term studies to determine the appropriate rate of postharvest crop residue to achieve less N2O emissions and climate-friendly agricultural practices.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Greenhouse gases crop residue soil management nitrous oxide emission conventional tillage no-tillage global warming
Megjelenés:	Air, Soil and Water Research. - 15 (2022), p. 1-12. -
További szerzők:	Anari, Manouchehr Gorji Taghizadeh-Toosi, Arezoo Zaman, Mohammad Saronjic, Nermina Mohammed Safwan (1985-) (agrármérnök) Szabó Szilárd (1974-) (geográfus) Caballero-Calvo, Andrés
Pályázati támogatás:	NKFI-TNN-123457 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

3.

001-es BibID:	BIBFORM088332
035-os BibID:	(cikkazonosító)2786 (Scopus)85092708721 (WoS)000585255400001
Első szerző:	Mohammed Safwan (agrármérnök)
Cím:	Estimating Human Impacts on Soil Erosion Considering Different Hillslope Inclinations and Land Uses in the Coastal Region of Syria / Safwan Mohammed, Hazem G. Abdo, Szilard Szabo, Quoc Bao Pham, Imre J. Holb, Nguyen Thi Thuy Linh, Duong Tran Anh, Karam Alsafadi, Ali Mokhtar, Issa Kbibo, Jihad Ibrahim, Jesus Rodrigo-Comino
Dátum:	2020
ISSN:	2073-4441
Megjegyzések:	Soils in the coastal region of Syria (CRoS) are one of the most fragile components of natural ecosystems. However, they are adversely affected by water erosion processes after extreme land cover modifications such as wildfires or intensive agricultural activities. The main goal of this research was to clarify the dynamic interaction between erosion processes and different ecosystem components (inclination, land cover/land use, and rainy storms) along with the vulnerable territory of the CRoS. Experiments were carried out in five different locations using a total of 15 erosion plots. Soil loss and runoff were quantified in each experimental plot, considering different inclinations and land uses (agricultural land (AG), burnt forest (BF), forest/control plot (F)). Observed runoff and soil loss varied greatly according to both inclination and land cover after 750 mm of rainfall (26 events). In the cultivated areas, the average soil water erosion ranged between 0.14 ? 0.07 and 0.74 ? 0.33 kg/m2; in the BF plots, mean soil erosion ranged between 0.03 ? 0.01 and 0.24 ? 0.10 kg/m2. The lowest amount of erosion was recorded in the F plots where the erosion ranged between 0.1 ? 0.001 and 0.07 ? 0.03 kg/m2. Interestingly, the General Linear Model revealed that all factors (i.e., inclination, rainfall and land use) had a significant (p < 0.001) effect on the soil loss. We concluded that human activities greatly influenced soil erosion rates, being higher in the AG lands, followed by BF and F. Therefore, the current study could be very useful to policymakers and planners for proposing immediate conservation or restoration plans in a less studied area which has been shown to be vulnerable to soil erosion processes.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk soil management land cover changes Syria soil erosion hillslopes
Megjelenés:	Water. - 12 : 10 (2020), p. 1-25. -
További szerzők:	Abdo, Hazem Ghassan Szabó Szilárd (1974-) (geográfus) Pham, Quoc Bao Holb Imre (1973-) (agrármérnök) Linh, Nguyen Thi Thuy Anh, Duong Tran Alsafadi, Karam Mokhtar, Ali Kbibo, Issa Ibrahim, Jihad Rodrigo-Comino, Jesús
Pályázati támogatás:	Tématerületi Kiválósági Program (ED_18-1-2019-0028) Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

4.

001-es BibID:	BIBFORM087876
035-os BibID:	(cikkazonosító)2529 (Scopus)85090981264 (WoS)000581970800001
Első szerző:	Mohammed Safwan (agrármérnök)
Cím:	Soil Management Effects on Soil Water Erosion and Runoff in Central Syria : A Comparative Evaluation of General Linear Model and Random Forest Regression / Safwan Mohammed, Ali Al-Ebraheem, Imre J. Holb, Karam Alsafadi, Mohammad Dikkeh, Quoc Bao Pham, Nguyen Thi Thuy Linh, Szilard Szabo
Dátum:	2020
ISSN:	2073-4441
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Water. - 12 : 9 (2020), p. 1-19. -
További szerzők:	Al-Ebraheem, Ali Holb Imre (1973-) (agrármérnök) Alsafadi, Karam Dikkeh, Mohammad Pham, Quoc Bao Linh, Nguyen Thi Thuy Szabó Szilárd (1974-) (geográfus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

5.

001-es BibID:	BIBFORM082562
035-os BibID:	(WoS)000457952700087 (Scopus)85058663446
Első szerző:	Rawat, Kishan Singh
Cím:	Estimation of crop evapotranspiration through spatial distributed crop coefficient in a semi-arid environment / Kishan Singh Rawat, Sudhir Kumar Singh, Anju Bala, Szilárd Szabó
Dátum:	2019
ISSN:	0378-3774
Megjegyzések:	Accurate and reliable estimation of reference crop evapotranspiration (ETo) is important due to its critical role in determining crop water requirement in irrigated agriculture. The aim of the paper was to estimate the evapotranspiration (ETc) using spatially distributed crop coefficient (Kc) and open access earth observing datasets in a semi-arid environment. We have estimated the actual evapotranspiration (ETc) based on spatially distributed crop coefficient (Kc) using following models namely Surface Energy Balance Algorithm for Land (SEBAL), Makkink model, Hargreaves and Samani model, Camargo method and Jensen-Haise model. Further, these models estimates were compared with Penman-Monteith estimate. Comparative evaluation of models was performed through statistical tests, and it was found that the Makkink model performed satisfactory compared with standard Penman-Monteith model estimate (R2=0.88). Leaf area index (LAI) and the Kc was in strong (second order polynomial) relationship (R2=0.98). The analysis also shows distributed actual evapotranspiration based on Makkink model has good agreement with actual evapotranspiration from Penman-Monteith with R2 of 0.84, respectively, for the study area. The finding suggests that the Makkink model estimates ETo are very close to the universally accepted Penman-Monteith model based ETo.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Actual evapotranspiration Wheat Crop coefficient SEBAL model Penman-Monteith method
Megjelenés:	Agricultural Water Management. - 213 (2019), p. 922-933. -
További szerzők:	Kumar Singh, Sudhir Bala, Anju Szabó Szilárd (1974-) (geográfus)
Pályázati támogatás:	4th thematic program of the University of Debrecen FIKP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

6.

001-es BibID:	BIBFORM083813
035-os BibID:	(cikkazonosító)563 (Scopus)85081747794 (WoS)000519846500254
Első szerző:	Szabó Zsuzsanna (környezetgazdálkodási és vidékfejlesztési agrármérnök)
Cím:	Geomorphology as a Driver of Heavy Metal Accumulation Patterns in a Floodplain / Szabó Zsuzsanna, Buró Botond, Szabó József, Tóth Csaba Albert, Baranyai Edina, Herman Petra, Prokisch József, Tomor Tamás, Szabó Szilárd
Dátum:	2020
ISSN:	2073-4441
Megjegyzések:	The spatial complexity of floodplains is a function of several processes: hydrodynamics, flow direction, sediment transportation, and land use. Sediments can bind toxic elements, and as there are several pollution sources, the risk of heavy metal accumulation on the floodplains is high. We aimed to determine whether fluvial forms have a role in metal accumulations. Topsoil samples were taken from point bars and swales in the floodplain of the Tisza River, North-East Hungary. Soil properties and metal concentrations were determined, and correlation and hypothesis testing were applied. The results showed that fluvial forms are important drivers of horizontal metal patterns: there were significant differences (p < 0.05) between point bars and swales regarding Fe, K, Mg, Mn, Cr, Cu, Ni, Pb, and Zn. Vertical distribution also differed significantly by fluvial forms: swales had higher metal concentrations in all layers. General Linear Models had different results for macro and micro elements: macro element concentrations were determined by the organic matter, while for micro elements the clay content and the forms were significant explanatory variables. These findings are important for land managers and farmers because heavy metal concentration has a direct impact on living organisms, and the risk of bioaccumulation can be high on floodplains.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk fluvial landforms swale point bar topsoil samples vertical contamination General Linear Model (GLM)
Megjelenés:	Water. - 12 : 2 (2020), p. 1-16. -
További szerzők:	Buró Botond (1986-) (geográfus) Szabó József (1940-) (geográfus) Tóth Csaba Albert (1971-) (geográfus) Baranyai Edina (1987-) (környezetkutató) Herman Petra (1994-) (környezetkutató) Prokisch József (1966-) (vegyész) Tomor Tamás (1976-) (geográfus) Szabó Szilárd (1974-) (geográfus)
Pályázati támogatás:	GINOP-2.3.2-15-2016-00009'ICER' Egyéb ÚNKP-18-3 New National Excellence Program of the Ministry of Human Capacities Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

7.

001-es BibID:	BIBFORM096138
035-os BibID:	(cikkazonosító)2339 (Scopus)85114018366 (WoS)000694519200001
Első szerző:	Yaqoob, Majd Muwafaq
Cím:	Changes in algal plankton composition and physico-chemical variables in a shallow oxbow lake / Majd Mufafaq Yaqoob, Csaba Berta, László József Szabó, György Dévai, Szilárd Szabó, Sándor Alex Nagy, István Bácsi, Alexandra Simon, János Nagy, Imre Somlyai, Éva Ács, István Grigorszky
Dátum:	2021
ISSN:	2073-4441
Megjegyzések:	In our work, we sought to answer whether we find differences among the various zones of an oxbow lake with different land uses based on physico-chemical variables and dominant algal plankton species. The two ends of the oxbow lake are bordered by settlements, and near them there are open water areas where fishing is the major utilization form. Between the two open water areas we find a protected area with a large aquatic plant coverage and two transition zones towards the open water areas. The oxbow lake receives periodic water replenishment only at one end from one of the open water areas. During summer?due to the lack of rain?the water of the oxbow lake is used for irrigation in the surrounding arable land, so the water level fluctuation can be significant in the riverbed. Our study was performed within a vegetation period of spring, early summer, mid-summer, and fall. In connection with the ecological classification of a smaller water body, studies on the physical and chemical properties of the water and the composition of the algal plankton are usually carried out in few places and relatively infrequently. The characteristics of a water body are also influenced by seasonal changes, which can be the changes in the extent of vegetation coverage, the way land is used and the possibility of water replenishment, to which the algal community usually responds with changes. Based on our study, it can be said that even in a relatively small water body, we found a large differences based on the chemical and physical properties of the water and the characteristic algal species. Open water zones, areas with large macrovegetation coverage, and the transition zones were separated from each other.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk phytoplankton physico-chemical oxbow lake macrophytes open water PCA
Megjelenés:	Water. - 13 : 17 (2021), p. 1-20. -
További szerzők:	Berta Csaba (1991-) (hidrobiológus) Szabó László József (1955-) (ökológus, hidrobiológus) Dévai György (1942-) (ökológus) Szabó Szilárd (1974-) (geográfus) Nagy Sándor Alex (1956-) (hidrobiológus) Bácsi István (1977-) (biológus) Simon Alexandra Nagy János (1951-) (agrármérnök, mérnök-tanár) Somlyai Imre (1978-) (okleveles hidrobiológus) Ács Éva (1970-) (biológus, ökológus) Grigorszky István (1967-) (biológus-ökológus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

Rekordok letöltése

1

Corvina könyvtári katalógus v8.2.27 © 2023 Monguz kft. Minden jog fenntartva.