scholarly journals Evaluation of Vulnerability of the Underground Aquifer of the Gharb Plain with the Help of Gis and Drastic Method (Nw of Morocco)

2016 ◽  
Vol 12 (36) ◽  
pp. 387
Author(s):  
El Mahmouhi Nezha ◽  
El Wartiti Mohamed ◽  
Azelmad Rajae ◽  
Sadki Ridouane ◽  
Berred Sanae
Keyword(s):  
Water Resources ◽  
Deep Aquifer ◽  
Protection Measures ◽  
Economic Progress ◽  
Drastic Method ◽  
Different Types ◽  
Risk Zones ◽  
Vulnerability Map ◽  
Aquifer Complex ◽  
Demographic Growth

Water is a rare resource and badly distributed in Morocco. In spite of the sectorial politics enterprise by persons responsible during more than 50 years in order to control these resources, the problem of the rarity and the deterioration of the water quality always imposes itself. The aquifer complex of the Gharb constitutes an exceptional water reserve for Morocco but these resources are threatened by different types of pollution (agricultural, urban and industrial) according to the economic progress and the relatively fast demographic growth. In this sense and for a better management and the safeguard of water resources of the deep aquifer of the Gharb that we elaborated a map of vulnerability with the help of the DRASTIC method based on seven parameters, controlling water pollution process, seize under shape of data base managed by a Geographic Information System (GIS). The obtained vulnerability map constitutes an easily usable tool for the identification of risk zones where protection measures are necessary, for a better management of the important water resources of the region and also for the immediate intervention in case of accidental pollution.

scholarly journals GROUNDWATER VULNERABILITY ASSESSMENT USING DRASTIC MODEL OF UP AL-KHASSA DAM SUB-BASIN, KIRKUK, NE IRAQ

2020 ◽  
Vol 53 (2E) ◽  
pp. 12-24
Author(s):  
Madyan Al-Gburi
Keyword(s):  
Vulnerability Assessment ◽  
Groundwater Vulnerability ◽  
Aquifer Vulnerability ◽  
Drastic Model ◽  
Drastic Method ◽  
Groundwater Vulnerability Assessment ◽  
Arc Gis ◽  
Vulnerability Map ◽  
Gis Software ◽  
Program Version

Several studies and assessments have been conducted of areas exposed to pollution, especially areas that contain aquifer. The final extraction of the vulnerability map of the groundwater was constructed through the use of the DRASTIC method by applying the linear equation of the seven coefficients in the Arc GIS software program (Version 10.4). The aim of the study to assess aquifer vulnerability to pollution. Results, vulnerability map range between 75-126 (very low, low, and medium), the study area consists of very low and low vulnerability, except some areas medium vulnerability close to the center of the sub-basin in the standard vulnerability map (s) and 91-149 (very low, low, and medium) for the agriculture or pesticide vulnerability map (p), the medium vulnerability occupies a greater area the center of the sub-basin.

Democracy and Justice in Mathematics and Science Curriculum

2018 ◽  
Author(s):  
Paola Valero ◽  
Auli Arvola Orlander
Keyword(s):  
Science Curriculum ◽  
Research Literature ◽  
Economic Progress ◽  
School Subjects ◽  
Rational Science ◽  
Different Types ◽  
Science Curricula ◽  
Mathematics And Science ◽  
School Curricula ◽  
Contemporary School

How mathematics and science curricula connect to democracy and justice is understood through the examination of different perspectives of mathematics and science education as political. Although frequently conceived of as neutral, these school subjects have been central in recent modern education for governing the making of rational, science-minded citizens who are necessary for social, political, and economic progress. Three main perspectives are identified in the existing research literature. A perspective of empowerment highlights the power that people can acquire by learning and using mathematics and science. A perspective of disadvantage focuses on how the pedagogies of mathematics and science intersect with categories such as ability, gender, class, ethnicity, and race to generate and reproduce marginalization. A perspective of subjectivation examines the effects of mathematics and science curricula within the context of historical and cultural processes for the making of desired modern, rational, and techno-scientific types of citizens, thus creating categories of inclusion and exclusion. All together, these perspectives point to the ways in which mathematics and science, as privileged forms of knowing in contemporary school curricula, simultaneously operate to include or exclude different types of students.

Turkey's Water Resources and Hydropower Potential

2005 ◽  
Vol 23 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Ayhan Demirbaş ◽  
Recep Bakiş
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
Ground Water ◽  
Annual Rainfall ◽  
Water Reservoirs ◽  
Total Potential ◽  
Hydropower Potential ◽  
Different Types

The aim of this paper is to investigate water resources in Turkey. Annual rainfall varies from 220 mm to 2500 mm with an average of 643 mm, which means total volume of 501 km3 and average annual potential of surface water is 186 km3 and 95 km3 of this amount potential can be feasibly developed. Ground water reservoirs are estimated to be around 12 km3. As a result of construction of 700 dams, with different types, purposes and sizes, 140 km3 of water is being stored in the reservoirs. Total hydropower potential of Turkey is annually 433,000 GWh. Almost 50% of the total potential is technically exploitable, and 29% is (122,322 GWh/year) economically exploitable.

An Integrated Model for Simulating and Evaluating Water Resources Sustainability at Laoshan Region

2014 ◽  
Vol 675-677 ◽  
pp. 880-885
Author(s):  
Jie Jun Yang ◽  
Jun Zhou
Keyword(s):  
Water Resources ◽  
Historical Data ◽  
Integrated Model ◽  
Decision Makers ◽  
Relative Standard ◽  
Different Types ◽  
Relative Errors ◽  
Water Quality And Quantity ◽  
Water Resources Utilization ◽  
Water Resources Sustainability

An integrated model was developed for evaluating water resources sustainability. In the model, a new index was developed based on nineteen indicators related socio-economic, eco-environment and water resources. The interrelationships between indicators were quantified based on mathematical models. The integrated model was applied to simulate the water resources sustainability in Laoshan Region successfully from 2010 to 2030 after validation and calibration using historical data which has low relative errors and relative standard deviation (<10%). The results indicate that the sustainable solution to water resources utilization in Laoshan Region is to supply different types of water resources to different water resources demand sectors based on requirements on water quality and quantity. The integrated model developed in this study is useful for decision-makers to simulate and evaluate the water resources sustainability.

scholarly journals Reclamation Development Options Optimization Model within the Water Bodies Integrated Development and Protection Scheme

2015 ◽  
pp. 53-66
Author(s):  
Keyword(s):  
Water Resources ◽  
Catchment Area ◽  
Social Economic ◽  
Water Protection ◽  
Protection Measures ◽  
Protection Scheme ◽  
Agrarian Sector ◽  
The Social ◽  
Analytical Research ◽  
Regional Programs

Information/analytical research of methodical approaches to melioration facilities localization within a catchment area and their provision with water resources have been carried out. A model of multi-criteria optimization for melioration option formation during the social/economic agrarian sector development regional programs implementation and for composing the list of water/protection measures within the regional WBIUPS frameworks has been developed. Procedures of the principles formation for melioration facilities functional/technological location at the catchment to reduce labor intensity concerning possible versions of melioration facilities’ binding to water resources; sources and discharges in terms of representativeness of the options to be discussed have been presented.

scholarly journals AN APPROACH TO AUTOMATIC DETECTION AND HAZARD RISK ASSESSMENT OF LARGE PROTRUDING ROCKS IN DENSELY FORESTED HILLY REGION

2016 ◽  
Vol XLI-B3 ◽  
pp. 195-199 ◽  
Author(s):  
S. Chhatkuli ◽  
K. Kawamura ◽  
K. Manno ◽  
T. Satoh ◽  
K. Tachibana
Keyword(s):  
Fall Risk ◽  
State Of The Art ◽  
Traditional Approach ◽  
Airborne Lidar ◽  
Rock Fall ◽  
Automatic Extraction ◽  
Protection Measures ◽  
Hilly Region ◽  
Risk Zones ◽  
Hazard Risk Assessment

Rock-fall along highways or railways presents one of the major threats to transportation and human safety. So far, the only feasible way to detect the locations of such protruding rocks located in the densely forested hilly region is by physically visiting the site and assessing the situation. Highways or railways are stretched to hundreds of kilometres; hence, this traditional approach of determining rock-fall risk zones is not practical to assess the safety throughout the highways or railways. In this research, we have utilized a state-of-the-art airborne LiDAR technology and derived a workflow to automatically detect protruding rocks in densely forested hilly regions and analysed the level of hazard risks they pose. Moreover, we also performed a 3D dynamic simulation of rock-fall to envisage the event. We validated that our proposed technique could automatically detect most of the large protruding rocks in the densely forested hilly region. Automatic extraction of protruding rocks and proper risk zoning could be used to identify the most crucial place that needs the proper protection measures. Hence, the proposed technique would provide an invaluable support for the management and planning of highways and railways safety, especially in the forested hilly region.

scholarly journals Metagenomic Analysis of Antibiotic Resistance Genes in Untreated Wastewater From Three Different Hospitals

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiurong Guo ◽  
Nan Tang ◽  
Hui Lei ◽  
Qi Fang ◽  
Li Liu ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
High Throughput Sequencing ◽  
Antibiotic Resistance Genes ◽  
Pollution Source ◽  
Resistant Bacteria ◽  
Hospital Wastewater ◽  
Protection Measures ◽  
Untreated Wastewater ◽  
Different Types

Controlling antibiotic resistance genes (ARGs) is a worldwide intervention to ensure global health. Hospital wastewater is the main pollution source of antibiotic-resistant bacteria and ARGs in the environment. Expanding our knowledge on the bacterial composition of hospital wastewater could help us to control infections in hospitals and decrease pathogen release into the environment. In this study, a high-throughput sequencing-based metagenomic approach was applied to investigate the community composition of bacteria and ARGs in untreated wastewater from three different types of hospitals [the general hospital, traditional Chinese medicine (TCM) hospital, and stomatology hospital]. In total, 130 phyla and 2,554 genera were identified from the microbiota of the wastewaters, with significantly different bacterial community compositions among the three hospitals. Total ARG analysis using the Antibiotic Resistance Genes Database (ARDB) and Comprehensive Antibiotic Resistance Database (CARD) revealed that the microbiota in the wastewaters from the three hospitals harbored different types and percentage of ARGs, and their composition was specific to the hospital type based on the correlation analysis between species and ARG abundance, some ARGs contributed to different bacterial genera with various relationships in different hospitals. In summary, our findings demonstrated a widespread occurrence of ARGs and ARG-harboring microbiota in untreated wastewaters of different hospitals, suggesting that protection measures should be applied to prevent human infections. Concurrently, hospital wastewater should be treated more specifically for the removal of pathogens before its discharge into the urban sewage system.

scholarly journals Use of Drones for the Topo-Bathymetric Monitoring of the Reservoirs of the Segura River Basin

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 445 ◽  
Author(s):  
Manuel Erena ◽  
Joaquín Atenza ◽  
Sandra García-Galiano ◽  
José Domínguez ◽  
José Bernabé
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Storage Capacity ◽  
Water Reservoir ◽  
Western Mediterranean ◽  
Annual Rate ◽  
Capacity Loss ◽  
Western Mediterranean Basin ◽  
Different Types ◽  
Triangular Irregular Network

The Segura River Basin (SRB), located in the South East of Spain, has the lowest percentage of renewable water resources of all the Spanish basins. Therefore, knowledge of the annual rate of water reservoir sedimentation is an important issue to be resolved in one of the most water-stressed regions in the western Mediterranean basin. This paper describes the sensors developed in collaboration with technology-based enterprises (aerial drone, floating drone, and underwater drone), and the methodology for integration of the different types of data acquired to monitor the reservoirs of the SRB. The proposed solution was applied to 21 reservoirs of the SRB. The proposed methodology is based on the use of unmanned aerial vehicles (UAV) for photogrammetry of the reservoir surface area. For each reservoir, two flights were completed, with 20 cm and 5 cm resolution, respectively. Then, a triangular irregular network mesh was generated by GIS techniques. Surface water vehicles (USV) and underwater remote-operated vehicles (ROV) were used to undertake bathymetric surveys. In addition, water quality measurements were made with an ROV device. The main results consist of topographic and bathymetric measurements for each reservoir, obtained by using equipment based on OpenSource technology. According to the results, the annual rate of storage capacity loss of water resources in the SRB´s reservoirs is 0.33%.

scholarly journals Landslide hazard and risk zonation of Thankot – Chalnakhel area,

1970 ◽  
Vol 31 ◽  
pp. 43-50 ◽  
Author(s):  
Pradeep Paudyal ◽  
Megh Raj Dhital
Keyword(s):  
Landslide Hazard ◽  
Geographical Information ◽  
Hazard Map ◽  
Risk Map ◽  
Risk Zonation ◽  
Hazard Zone ◽  
Risk Zones ◽  
Vulnerability Map ◽  
Landslide Hazard Map ◽  
Moderate Hazard

The rocks in the Thankot–Chalnakhel area constitute the Chandragiri Range bordering the Kathmandu valley. The Phulchauki Group of rocks comprise its steep and rugged south slope, whereas the gentle north slope is covered by fluvio-lacustrine deposits of the Kathmandu basin with some recent alluvial fans. During the field study, 94 landslides (covering about 0.24 sq km) were mapped. Most of them were triggered by intense rainfall within the last two years. Landslides are generally found on steep colluvial slope (25°–35°) and dry cultivated land. Based on a computer-based geographical information system, a landslide hazard map, a vulnerability map, and a risk map were prepared. The landslide hazard map shows 20% of the area under high hazard zone, 41% under moderate hazard zone, and 39% under low hazard zone. The risk map generated by combining the hazard map and vulnerability map shows 19% of the area under high and very high risk zones, 33% under moderate risk zone, and 48% under low and very low risk zones.

Sign in / Sign up

Export Citation Format

Share Document