Note: Intro -- About the 2nd Springer Conference of the Arabian Journal of Geosciences (CAJG-2), Tunisia 2019 -- Proceedings Volume 1: New Prospects in Environmental Geosciences and Hydrogeosciences -- Proceedings Volume 2: Advances in Geophysics, Tectonics and Petroleum Geosciences -- Proceedings Volume 3: Recent Research on Geomorphology, Sedimentology, and Geochemistry -- Proceedings Volume 4: Research Developments in Geotechnics, Geoinformatics and Remote Sensing -- About the Conference Steering Committee -- Preface -- Contents -- About the Editors -- Global Environmental Change (T1): Atmosphere -- 1 Climate Networks -- Abstract -- 1 Introduction -- 2 Climate Network Measurements -- 2.1 Degree Distribution -- 2.2 Path, Distance and Diameter -- 2.3 Clustering -- 2.4 Cut Sets and Communities -- 3 Results -- 3.1 Patterns and Teleconnections -- 3.2 El Niño -- 3.3 North Atlantic Oscillation -- 4 Discussion and Conclusions -- References -- 2 Assessment of Temperature Trends in Different Bioclimatic Zones of India -- Abstract -- 1 Introduction -- 2 Study Area, Data and Methods -- 3 Results and Discussion -- 4 Conclusions -- References -- 3 Statistical Analysis of Wind to Assess Climate Change (Central Italy) -- Abstract -- 1 Introduction -- 2 Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- 4 Impact of Estimated Wind Speed on Temperature-Based on ET0 Methods -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusions -- Acknowledgements -- References -- Global Environmental Change (T1): Ocean -- 5 The Remote Response of Northern Hemisphere Atmosphere Circulation to ENSO in a Changing Climate -- Abstract -- 1 Introduction -- 2 Data and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- Acknowledgements -- References. , 6 Inter-Annual Variability of Mediterranean Evaporation and Its Drivers During Summer -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Leading EOF Modes of Mediterranean Evaporation -- 3.2 Links to Regional Climate -- 4 Conclusions -- Acknowledgements -- References -- 7 Low Frequency Sea-Level Oscillations in Algiers Harbour (Algeria) -- Abstract -- 1 Introduction -- 2 Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 8 Modeling Interactions Among the West Atlantic Hurricanes Through Empirical Recurrence Rates Ratio Inspired Hidden Markov Chains -- Abstract -- 1 Introduction -- 2 Methodology -- 3 Results -- 3.1 Change-Point Identification -- 3.2 ERRR Based HMC Modeling -- 4 Discussion and Conclusions -- References -- 9 Performance Evaluation of a New Source Term Package ST6 of Wavewatch III in Catalan Coasts (Spain) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- 10 Enhanced Methane Emission from Arctic Seas in Winter: Satellite Data -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusions -- References -- Global Environmental Change (T1): Land Surface -- 11 Seasonal Heat Fluxes of Land Surface Models, NOAH and MOSAIC Within NLDAS-2 Over USA During the Period of 1979-2018 -- Abstract -- 1 Introduction -- 2 Methods and Data -- 2.1 NLDAS-2System -- 2.2 MOSAIC Land Surface Model -- 2.3 NOAH Land Surface Model -- 3 Results and Discussion -- 3.1 Spatial Sensible Heat Flux -- 3.2 Spatial Latent Heat Flux -- 3.3 Temporal Latent and Sensible Heat Fluxes -- 4 Conclusions -- References -- 12 Ecological Security Assessment of Qinghai Province in China Based on a Pressure-State-Response Model -- Abstract -- 1 Introduction -- 2 Materials and Methods. , 2.1 Location of Qinghai Province and Data Sources -- 2.2 Research Methods -- 2.2.1 Assessment Model, the Assessing Index System and Index Quantization and Weight -- 2.2.2 Calculation of the Degree of Ecological Security -- 3 Results and Discussion -- Acknowledgements -- The Appendix 1 -- The Appendix 2 -- References -- 13 Detecting and Monitoring Dust Storm and Studying the Effect of Temperature and Relative Humidity Parameters Using Remote Sensing -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Dust Storm Zoning -- 2.2 Correlation of Temperature and Humidity Parameters with the Dust Index -- 3 Results -- 4 Discussion -- References -- 14 Granulometric, Mineralogical, and HYSPLIT Analysis of Siliciclastic Sediments Derived from Sahara -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusions -- Acknowledgements -- References -- 15 Solar Power Plant Site Selection and Thermodynamic Analysis -- Abstract -- 1 Introduction -- 2 Methods -- 2.1 System Description -- 3 Results and Discussion -- 3.1 Site Comparison -- 3.2 Solar Power Plant Output -- 4 Discussion -- 5 Conclusions -- References -- Biogeochemistry, Geobiology, Geoecology, Geoagronomy (T2): Biogeochemical Investigations -- 16 Blue Carbon Sinks on Polar Seabeds and Their Feedbacks on Climate Change -- Abstract -- 1 Introduction -- 2 Measuring Benthic Blue Carbon -- 3 Major Polar Blue Carbon Feedbacks -- 3.1 Seasonal Sea Ice Loss Influences -- 3.2 Ice Shelf Disintegration Influences -- 3.3 Glacier Retreat and Emerging Fjord Influences -- 4 Discussion -- References -- 17 Climatic Conditions as Factors Influencing the Formation of High-Moor Peat Organic Part -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- Acknowledgements -- References. , 18 Coastal Deltas of Big Rivers as Synergetic Transformation Elements of the Earth System-(An Example of the Don River Delta) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 3.1 Definition of Delta Functional Type for the Don River -- 3.2 Don River Delta Mapping -- 3.3 Collection of Databases for the Don River Delta -- 4 Discussion -- 5 Conclusion -- Acknowledgements -- References -- 19 Investigation of the Impacts of the Saponite-Containing Waste on Wetland Ecosystems -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- Acknowledgements -- References -- 20 Evaluation of the Impact of Diamond Mining on the Radioecological State of the Arctic Zone Ecosystems (Example of Arkhangelsk Region, Russia) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- Acknowledgments -- References -- Biogeochemistry, Geobiology, Geoecology, Geoagronomy (T2): Geobiology and Geomicrobiology -- 21 Scientific and Methodological Foundations of Biogeology -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- 22 Natural and Resource Potential of Officinal Plants Flora of Ciscaucasia (Russian Federation) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Flora of Officinal Plants of Ciscaucasia -- 3.2 Pharmacological Properties and Use of Officinal Plants -- 3.3 Cultivation of Officinal Plants -- 3.4 Rational Use of Officinal Plants -- 4 Conclusion -- References -- 23 Properties of Plant Growth Promoting Rhizobacteria Isolated from Rhizospheric Soil of Citrulus colocynthis (Cucurbitaceae) in northeastern Algeria -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusion -- References. , 24 Microbiological Consortium of Thermokarst Lake and Its Significance in the Biodegradation of Petroleum Hydrocarbons -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- Acknowledgements -- References -- 25 Use of Biosurfactants in Bioremediation of Petroleum-Contaminated Soil -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Biosurfactant-Producing Bacterial Strain -- 2.2 Bioremediation Trials -- 2.2.1 Quantification of Oil-Degrading Bacteria -- 2.2.2 Monitoring of Total Petroleum Hydrocarbons (TPH) and Metal Analyses -- 2.2.3 Germination Test -- 3 Results -- 3.1 Abundance of Oil-Degrading Bacteria in Oil-Contaminated Soil -- 3.2 Total Petroleum Hydrocarbons TPHs Biodegradation in Oil-Contaminated Soil -- 3.3 Metal Removal in Oil-Contaminated Soil -- 3.4 Germination Test -- 4 Discussion -- 5 Conclusion -- References -- 26 Bio-cementation of Lateritic Soil Using Microbial-Induced Calcium Carbonate Precipitation Techniques for Use as Road and Embankment Materials -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Materials -- 2.1.1 Soil Sample -- 2.1.2 Microorganism -- 2.1.3 Cementation Reagent -- 2.1.4 Bacteria Solution -- 2.2 Methods -- 2.2.1 Isolation of the Bacterium Specie -- 2.2.2 The Culture Medium and Growth Conditions -- 2.2.3 Mass of Calcium Carbonate Measurements -- 2.2.4 Unconfined Compressive Strength -- 3 Results and Discussion -- 3.1 Index Properties -- 3.2 Calcium Carbonate Content -- 3.3 Unconfined Compressive Strength -- 3.4 Microanalysis -- 4 Conclusion -- References -- 27 Sewage Sludge Compost Disposal on a Chernozem Soil: Impacts on Bacterial Activity and Nutrient Contents -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Nutrients and Humus Contents of Soils Impacted by Sewage Sludge Compost Disposal. , 3.2 The Modifications of Soil Biology Due to the Compost Amendment.