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1.

001-es BibID:BIBFORM106135
035-os BibID:(cikkazonosító)45 (WOS)000904136700001 (Scopus)85145169018
Első szerző:Abdo, Hazem Ghassan
Cím:Spatial implementation of frequency ratio, statistical index and index of entropy models for landslide susceptibility mapping in Al-Balouta river basin, Tartous Governorate, Syria / Hazem Ghassan Abdo1, Hussein Almohamad, Ahmed Abdullah Al Dughairi, Sk Ajim Ali, Farhana Parvin, Ahmed Elbeltagi, Romulus Costache, Safwan Mohammed, Motrih Al-Mutiry, Karam Alsafadi
Dátum:2022
ISSN:2196-4092
Megjegyzések:Landslide vulnerability prediction maps are among the most important tools for managing natural hazards associated with slope stability in river basins that affect ecosystems, properties, infrastructure and society. Landslide events are among the most hazardous patterns of slope instability in the coastal mountains of Syria. Thus, the main goals of this research are to evaluate the performance of three different statistical outputs: Frequency Ratio (FR), Statistical Index (SI) and Index of Entropy (IoE) and therefore map landslide susceptibility in the coastal region of Syria. To this end, we identified a total of 446 locations of landslide events, based on the preliminary inventory map derived from fieldwork and high-resolution imagery surveys. In this regard, 13 geo-environmental factors that have a high influence on landslides were selected for landslide susceptibility mapping. The results indicated that the FR method outperformed the SI and IoE models with a high AUC of 0.824 and better adaptability, followed by the SI with 0.791. According to the SCAI values, although the FR model achieved the best reliability, the other two models also showed good capability in determining landslide susceptibility. The result of FR-based modelling showed that 18.51 and 19.98% of the study area fall under the high and very high landslide susceptible categories, respectively. In the map generated by the SI method, about 36% of the study area is classified as having high or very high landslide sensitivity. In the IoE method, whereas 14.18 and 25.62% of the study area were classified as ?very high susceptible" and ?high susceptible," respectively. The relative importance analysis demonstrated that the slope aspects, lithology and proximity to roads effectively motivated the acceleration of slope material instability and were the most influential in both the FR and SI models. On the other hand, the IoE model indicated that the proximity to faults and roads, along with the lithology factor, were important influences in the formation of landslide events. As a result, the statistical bivariate models-based landslide mapping provided a reliable and systematic approach to guide the long-term strategic planning procedures in the study area.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Landslide
Frequency ratio
Statistical index
Index of entropy
Coastal mountain area
Syria
Megjelenés:Geoscience Letters. - 9 : 1 (2022), p.1-24. -
További szerzők:Almohamad, Hussein Al Dughairi, Ahmed Abdullah Ali, Sk Ajim Parvin, Farhana Elbeltagi, Ahmed Costache, Romulus Mohammed Safwan (1985-) (agrármérnök) Al-Mutiry, Motrih Alsafadi, Karam
Pályázati támogatás:TKP2021-NKTA-32
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2.

001-es BibID:BIBFORM113753
035-os BibID:(Scopus)85173413441
Első szerző:Alsafadi, Karam
Cím:Evaluation of an Evapotranspiration Deficit-Based Drought Index and Its Impacts on Carbon Productivity in the Levant and Iraq / Karam Alsafadi, Shuoben Bi, Safwan Mohammed, Ali Mokhtar, Hazem Ghassan Abdo, Hongming He
Dátum:2023
Megjegyzések:Because the physiological and biochemical activities of vegetation, growth, and productivity of crops, especially ecosystem CO2 fluxes, and other ecological interactions are constrained by (1) varying degrees of drought at various timescales and (2) components of drought indices, it is still difficult to understand how the productivity of terrestrial ecosystems and vegetation types respond to drought. The terrestrial ecosystem in the Middle East has been subjected to severe droughts. It is yet unknown how these conditions have changed the gross primary productivity (GPP) in Middle East terrestrial ecosystems. Herein, we investigate this variability using a coupling analysis between the Standardized Evapotranspiration Deficit Index (SEDI) and the standardized gross primary productivity residuals series (sGPPRS). This was accomplished by using the annual GLASS-GPP data set for the Middle East, covering 36 years (1982-2017). Additionally, the GLEAM-version (v3.3a), which calculates yearly actual and prospective evaporation - one of the components of terrestrial evapotranspiration - was employed. The findings show that in the Levant and Iraq, where 30%-34% of croplands and 25%-35% of grasslands recorded a positive significant correlation against the SEDI, crops and grassland ecosystem productivity are more sensitive to drought. Notably, the GPP showed a sharp decline of more than 60% in the agrarian ecosystems of northern Iraq and northeastern Syria during the 2008 extreme drought, which culminated in a total vegetation deficit with a 100% negative anomaly. The significant drop in yearly SEDI during the extreme drought period in 2008 may have contributed to the decreases in the annual GPP and anomalies from 2009 to 2012. Thereafter, as evidenced by the negative GPP anomaly, the moderate and slight droughts from 2009 to 2012 led to consistently stressed vegetation. This ultimately resulted in a protracted delay in the vegetation cover of the ecosystem being restored.
ISBN:978-1-003-27655-5(e-book)
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok könyvfejezet
könyvrészlet
drought forecasting
droughts
climatic changes
meteorology agricultural
További szerzők:Bi, Shuoben Mokhtar, Ali Abdo, Hazem Ghassan He, Hongming Mohammed Safwan (1985-) (agrármérnök)
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3.

001-es BibID:BIBFORM110952
035-os BibID:(Scopus)85152927438 (WoS)000985353900001 (cikkazonosító)20
Első szerző:Alsafadi, Karam
Cím:Modeling the impacts of projected climate change on wheat crop suitability in semi-arid regions using the AHP-based weighted climatic suitability index and CMIP6 / Karam Alsafadi, Shuoben Bi, Hazem Ghassan Abdo, Hussein Almohamad, Basma Alatrach, Amit Kumar Srivastava, Motrih Al?Mutiry, Santanu Kumar Bal, M. A. Sarath Chandran, Safwan Mohammed
Dátum:2023
ISSN:2196-4092
Megjegyzések:Due to rapid population growth and the limitation of land resources, the sustainability of agricultural ecosystems has attracted more attention all over the world. Human activities will alter the components of the atmosphere and lead to climate change, which consequently afects crop production badly. In this context, wheat is considered an important crop and ranks as one of the top strategic crops globally. The main objective of this research is to develop a new approach (a weighted climatic suitability index) for evaluating the climate suitability for wheat production. The specifc objectives are to project the impact of future climate change on wheat suitability using three models based on WCSI and CMIP6-based projections and to identify the most vulnerable area to climate change and productivity reduction. The climatic criteria for wheat production were selected and classifed into eight indicators based on the Sys` scheme and the FAO framework, and then the weighted overlay approach was used in conjunction with the analytic hierarchy process. To confrm the reliability of the integrated WCSI, we determined the nonlinear curve ftting of integrated WCSI-induced wheat yields by the exponential growth equation. Finally, the CMIP6-GCMs projected from three shared socioeconomic pathways were used for WCSI mapping and predicting wheat yields in the short and long term (Southern Syria was selected as a case study). The results show that the nonlinear correlation between wheat yields and the integrated WCSI was 0.78 (R2=0.61) confrming the integrated WCSI`s reliability in refecting yield variation caused by climate suitability. The results indicated that WCSI for wheat will be lower over the study area during 2080-2100 compared to the current climate. During 2080-2100, the wheat yield is projected to decrease by 0.2-0.8 t. ha?1 in the western parts of the study area. The fndings of this study could be used to plan and develop adaptation strategies for sustainable wheat production in the face of projected climate change. The results of the study will also help in the strategic planning of wheat production in Syria under the projected climate. The results of this research are limited to small areas as a case study, although they are not relevant to similar regions worldwide. However, the study employs novel analytical methods that can be used broadly.
Tárgyszavak:Agrártudományok Állatorvosi tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Climate change
CMIP6
Yield forecasting
Agro-climatic indices
Agricultural sustainability
Megjelenés:Geoscience Letters. - 10 : 20 (2023), p. 1-21. -
További szerzők:Bi, Shuoben Abdo, Hazem Ghassan Almohamad, Hussein Alatrach, Basma Srivastava, Amit Kumar Al-Mutiry, Motrih Bal, Santanu Kumar Chandran, M. A. Sarath Mohammed Safwan (1985-) (agrármérnök)
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4.

001-es BibID:BIBFORM105969
035-os BibID:(WOS)000888719300006 (Scopus)85142617906
Első szerző:Alsafadi, Karam
Cím:Spatial-temporal dynamic impact of changes in rainfall erosivity and vegetation coverage on soil erosion in the Eastern Mediterranean / Karam Alsafadi, Shuoben Bi, Hazem Ghassan Abdo, Mario J. Al Sayah, Tamás Ratonyi, Endre Harsanyi, Safwan Mohammed
Dátum:2022
ISSN:0944-1344 1614-7499
Megjegyzések:In Syria, soil erosion (SoEr) by water is one of the major challenges for sustainability. Thus, the main goals of this research were to evaluate the spatial changes of SoEr between 2000 and 2018 in the whole coastal basin (CB) of Syria and to provide a soil water erosion risk map for the study area. For this purpose, monthly rainfall data, the SoilGrids dataset, satellite image derived NDVI layers, and Digital Elevation Model (DEM) were collected. Through the integration of these layers into the Revised Universal Soil Loss Equation (RUSLE), under a Geographic Information System (GIS), soil loss was assessed. Also, the contribution of land cover changes and R factor on SoEr were evaluated. The outcomes of this assessment illustrated that the R factor ranged from 800 to 2600 MJ mm ha(-)1 h(-1) yr(-1), while the soil erodibility factor (K factor) ranged from 0.048 to 0.035 ton ha MJ(-1) mm(-1). The C factor (vegetation coverage) values ranged between 0.07 and 1 with a spatial average value of 0.44 for the 2000-2009 period and 0.39 for the 2010-2018 interval. The output of RUSLE revealed that average annual SoEr was of 21.35 ton ha(-1) y(-1) (+/- 38) for 2000-2009 and 22.47 ton ha(-1) y(-1)(+/- 41.8) for 2010-2018. Interestingly, the increased SoEr caused by the R factor was dominant (34.65%), followed by changes in both C factor and R factor (13.34%). However, decrease of SoEr rates is due to the increase of the C factor accounting for 36.82% of the CB. The outcome of this research can provide constructive spatial insights for rehabilitation plans for the post-war phase of Syria.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Land degradation
Runoff
erodibility
Modeling
Erosivity
RUSLE
WEPP
vegetation coverage
Megjelenés:Environmental Science And Pollution Research. - [Epub ahead of print] (2022). -
További szerzők:Bi, Shuoben Abdo, Hazem Ghassan Al Sayah, Mario J. Rátonyi Tamás (1967-) (agrármérnök) Harsányi Endre (1976-) (agrármérnök) Mohammed Safwan (1985-) (agrármérnök)
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5.

001-es BibID:BIBFORM093001
035-os BibID:(Cikkazonosító)7273 (WOS)000684827700025 (Scopus)85103744723
Első szerző:Hateffard, Fatemeh (digital soil mapping)
Cím:CMIP5 climate projections and RUSLE-based soil erosion assessment in the central part of Iran / Fatemeh Hateffard, Safwan Mohammed, Karam Alsafadi, Glory O. Enaruvbe, Ahmad Heidari, Hazem Ghassan Abdo, Jesús Rodrigo-Comino
Dátum:2021
ISSN:2045-2322
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 11 : 1 (2021)., p. 1-17. -
További szerzők:Mohammed Safwan (1985-) (agrármérnök) Alsafadi, Karam Enaruvbe, Glory O. Heidari, Ahmad Abdo, Hazem Ghassan Rodrigo-Comino, Jesús
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6.

001-es BibID:BIBFORM095841
035-os BibID:(Scopus)85111353006
Első szerző:Khallouf, Alaa
Cím:Risk assessment of soil erosion by using CORINE model in the western part of Syrian Arab Republic / Alaa Khallouf, Swapan Talukdar, Endre Harsányi, Hazem Ghassan Abdo, Safwan Mohammed
Dátum:2021
ISSN:2048-7010
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Agriculture & Food Security. - 10 : 1 (2021), p. 1-15. -
További szerzők:Talukdar, Swapan Harsányi Endre (1976-) (agrármérnök) Abdo, Hazem Ghassan Mohammed Safwan (1985-) (agrármérnök)
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7.

001-es BibID:BIBFORM089395
Első szerző:Mohammed Safwan (agrármérnök)
Cím:Impacts of rainstorms on soil erosion and organic matter for different cover crop systems in the western coast agricultural region of Syria / Safwan Mohammed, Ebaa Hassan, Hazem Ghassan Abdo, Szilard Szabo, Ali Mokhtar, Karam Alsafadi, Issam Al-Khouri, Jesus Rodrigo-Comino
Dátum:2021
ISSN:0266-0032
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Soil Use And Management. - 37 : 1 (2021), p. 196-213. -
További szerzők:Hassan, Ebaa Abdo, Hazem Ghassan Szabó Szilárd (1974-) (geográfus) Mokhtar, Ali Alsafadi, Karam Al-Khouri, Issam Rodrigo-Comino, Jesús
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8.

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)
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9.

001-es BibID:BIBFORM097276
035-os BibID:(WoS)000713842200001 (Scopus)85118412099
Első szerző:Mokhtar, Ali
Cím:Assessment of the effects of Spatiotemporal Characteristics of Drought on Crop Yields in Southwest China / Ali Mokhtar, Hongming He, Karam Alsafadi, Safwan Mohammed, Olusola O. Ayantobo, Ahmed Elbeltagi, Ossama M.M. Abdelwahab, Zhao Hongfei, Ye Quan, Hazem Ghassan Abdo, Yeboah Gyasi-Agyei, Yu Li
Dátum:2022
ISSN:0899-8418
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal Of Climatology. - 42 (2022), p. 3056-3075. -
További szerzők:He, Hongming Alsafadi, Karam Mohammed Safwan (1985-) (agrármérnök) Ayantobo, Olusola O. Elbeltagi, Ahmed Abdelwahab, Ossama M.M. Hongfei, Zhao Quan, Ye Abdo, Hazem Ghassan Gyasi-Agyei, Yeboah Li, Yu
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