Synopsis of geo-environmental hazards in Hail region,Saudi Arabia using remote sensing   总被引：1，自引：0，他引：1  

Mohamed E. Hereher 《Environmental Earth Sciences》2016,75(3):233

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Erosion of a sandy coast: continuous follow-up of the coastal groynes of protection in Boumerdes (Algeria)     

Mohamed Bouhmadouche  Yacine Hemdane 《Environmental Earth Sciences》2016,75(10):866

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Geochemistry and spatial distribution of selected heavy metals in surface soil of Sohag,Egypt: a multivariate statistical and GIS approach     

Mohamed H. Ali  Abdel-Rahman A. Mustafa  Ahmed A. El-Sheikh 《Environmental Earth Sciences》2016,75(18):1257

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Time series trends of land surface temperatures in Egypt: a signal for global warming     

Mohamed E. Hereher 《Environmental Earth Sciences》2016,75(17):1218

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Integrated assessment of the Tarut Island coast,Arabian Gulf,Saudi Arabia     

Abdelbaset S. El-Sorogy  Mohamed Youssef  Khaled Al-Kahtany 《Environmental Earth Sciences》2016,75(19):1336

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Simulation of soil erosion under the influence of climate change scenarios   总被引：1，自引：0，他引：1  

Mohammad Zare  Ali Akbar Nazari Samani  Majid Mohammady  Teimur Teimurian  Javad Bazrafshan 《Environmental Earth Sciences》2016,75(21):1405

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Identifying recharge and salinization sources of groundwater in the Oussja Ghar el Melah plain (northeast Tunisia) using geochemical tools and environmental isotopes     

Safouan Ben Ammar  Jean-Denis Taupin  Kamel Zouari  Mohamed Khouatmia 《Environmental Earth Sciences》2016,75(7):606

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Landslide hazard mapping in the Constantine city,Northeast Algeria using frequency ratio,weighting factor,logistic regression,weights of evidence,and analytical hierarchy process methods     

Hamid Bourenane  Mohamed Said Guettouche  Youcef Bouhadad  Massinissa Braham 《Arabian Journal of Geosciences》2016,9(2):154

Landslides constitute the most widespread and damaging natural hazards in the Constantine city. They represent a significant constraint to development and urban planning. In order to reduce the risk related to potential landslide, there is a need to develop a comprehensive landslide hazard map (LHM) of the area for an efficient disaster management and for planning development activities. The purpose of this research is to prepare and compare the LHMs of the Constantine city, by applying frequency ratio (FR), weighting factor (Wf), logistic regression (LR), weights of evidence (WOE), and analytical hierarchy process (AHP) methods used in a framework of the geographical information system (GIS). Firstly, a landslide inventory map has been prepared based on the interpretation of aerial photographs, high resolution satellite images, fieldwork, and available literature. Secondly, eight landslide-conditioning factors such as lithology, slope, exposure, rainfall, land use, distance to drainage, distance to road, and distance to fault have been considered to establish LHMs using the FR, Wf, LR, WOE, and AHP models in GIS. For verification, the obtained LHMs have been validated comparing the LHMs with the known landslide locations using the receiver operating characteristics curves (ROC). The validated results indicate that the FR method provides more accurate prediction (86.59 %) of LHMs than the WOE (82.38 %), AHP (77.86 %), Wf (77.58 %), and LR (70.45 %) models. On the other hand, the obtained results showed that all the used models in this study provided a good accuracy in predicting landslide hazard in Constantine city. The established maps can be used as useful tools for risk prevention and land use planning in the Constantine region.  相似文献   

A Miocene-restricted platform of the Zibane zone (Saharan Atlas,Algeria), depositional sequences and paleogeographic reconstruction     

Mohamed Chebbah 《Arabian Journal of Geosciences》2016,9(2):151

Depositional sequences and paleogeographic evolution of the Miocene deposits have been studied in the Zibane zone (Saharan Atlas, Algeria) located at the north of the African platform. During the Miocene, this region corresponded to a fault-bounded collapse area and filled by diversified deposits, showing important lateral facies and thicknesses variations. The studied deposits are divided into five depositional sequences separated by major unconformities. These depositional sequences are well developed in the whole basin and testify a paleogeographic differentiation from E–W, induced by a set of NW-SE-trending old faults inherited from the Atlasic orogeny. The organization and the development of those sequences make it possible to correlate them better to the basin scale, which is integrated in a model of restricted platform intersected by NW-SE faults where the tectonic-sedimentation duality is predominant. These new data point to a paleogeographic evolution different from the one usually admitted environment for this region during Miocene time and plead in favour of a reconsideration of the depositional environments of the post-Burdigalian formations in the Zibane zone of the Algerian Atlasic domain.  相似文献   

Factors controlling the changes and spatial variability of <Emphasis Type="Italic">Junipers phoenicea</Emphasis> in Jabal Al Akhdar,Libya, using remote sensing and GIS     

Samy Ismail Elmahdy  Mohamed Mostafa Mohamed 《Arabian Journal of Geosciences》2016,9(6):478

The Junipers phoenicea, which covers 70 % of the Jabal Al Akhdar (Green Mountain) in Cyrene on the northeast coast of Libya, has deteriorated over large scales. To deal with this problem, the images of the Landsat 7 Enhanced Thematic Mapper Plus (ETM+) and Landsat 8 Operational Land Imager (OLI) in conjunction with the Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) were used to map factors controlling the J. phoenicea mortality using a set of automated algorithms and tools. These factors include altitude, slope, aspect, curvature, drainage pattern, seawater intrusion, and land cover. As a first step, changes of J. phoenicea and land cover during the period from the year 2000 to 2015 were mapped. The results showed a sharp decline in J. phoenicea covering an area of 396 km² (22 %) of the total area. The result also showed that areas at a lower elevation with steep slope and faced to the south and southeast directions have a higher probability of J. phoenicea distribution. The spatial analysis showed a positive correlation between wetness and the intensity of J. phoenicea mortality. The results also show that altitude and slope have the most influencing power on the J. phoenicea morality. This study is of great help for decision makers and agriculture engineers and permits a better understanding of ecological and biomass changes in the Jabal Al Akhdar, Libya, over a regional scale.  相似文献