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Journal Cover LARHYSS Journal
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  This is an Open Access Journal Open Access journal
   ISSN (Print) 1112-3680
   Published by Universit√© de Biskra Homepage  [1 journal]
  • FOR BETTER GOVERNANCE OF DRINKING WATER IN TUNISIAN RURAL AREAS

    • Authors: K. AYARI, A. AYARI
      Abstract: Water is a vital resource, irreplaceable and indispensable for human survival and growth of the population. However, the risk of its shortage presents the greatest threat weighing on the world. That’s why the problem of its good management is in the heart of the sustainable development of countries in arid regions. Concerning Tunisia, the state has made significant efforts to ensure the supply of all social slices with drinking water. The urban environment is fully serviced by SONEDE (National company of exploitation and distribution of drinking water). In rural areas, about 1350 Agricultural Development Groups (ADG) have completed the SONEDE’s activity. These ADG are responsible for the management of Drinking Water Systems made by Rural Engineering Services (DWS) and have the support of the state in the various activities they provide (water sales, servicing and maintenance of DWS, etc.). However, despite efforts by the State to capacity building of ADG, management of DWS is satisfactory for only 20% of the DWS. Thus, new questions have been developed on the local governance of drinking water in rural areas and the steps that should be taken to improve this process and to increase the supply of the rural population in water of good quality and in eligible costs for the community.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • POLLUTION BY TRACE METALS OF THE SURFACE WATER OF BONOUA AREA IN HIGH
           WATER TIME (SOUTHEAST OF IVORY COAST)

    • Authors: P. TOHOURI, G. SORO, E. AHOUSSI KOUASSI, G. ADJA MIESSAN, E. AKE GABRIEL, J. BIEMI
      Abstract: The populations of some localities of Bonoua region that no longer have village water works for reasons of mechanical breakdowns use surface water for food. But these waters are confronted with anthropogenic pollution from agricultural activities, to discharges of industrial and domestic wastewater. Indeed, these activities generate magnitudes of amounts of polluting substances whose metallic trace elements (ETM) that negatively affect water quality and subsequently human health. This study aims to assess the level of pollution by trace metals (Cd, Mn, Pb, Cu, Al, Fe and Zn) in times of high water surface water of Bonoua Region to estimate risk sanitation to which people are exposed. To get there, 14 water samples were taken and analyzed by emission spectrometry with Inductively Coupled Plasma (ICP). The data obtained are compared with the WHO standard values for drinking water. The results show that the lead concentrations below the detection limit of the measuring apparatus. The average concentrations of Copper, Zinc and Aluminium conform to WHO drinking water standards. The average concentrations of Cd, Mn and Fe were respectively 15 µg/L, 236 µg/L and 809 µg/L. They are much higher than WHO standards. The assessment of health risks associated with the presence of these ETM in waters show that only Cd and Fe at risk of poisoning in the population and especially among children.This study shows that the surface water of the Bonoua region are under the influence of anthropogenic activities which pose health risks for people, particularly for children.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • MONITORING DAILY ACTUAL EVAPOTRANSPIRATION AND SURFACE WATER STATUS OVER
           AN AGRICULTURAL AREA IN WESTERN ALGERIA USING REMOTE SENSING DATA

    • Authors: A. HAMIMED, M. ZAAGANE, A.T. OUALID, M. TEFFAHI, D. BAKHTIAR
      Abstract: The quantification of evapotranspiration from agricultural areas is important for agriculture water management, especially in arid and semiarid regions where water deficiency is becoming a major constraint in economic welfare and sustainable development. Remote sensing based energy balance models are presently most suited for estimating evapotranspiration at both field and regional scales.In this study, METRIC (Mapping Evapotranspiration at high Resolution with Internalized Calibration), a remote sensing of spatializing, has been applied for the estimation of actual evapotranspiration in the Ghriss plain, a semiarid region in Algeria with heterogeneous surface conditions. Eight images acquired by the Lansat-7 satellite on 2002 were used. The METRIC model followed an energy balance approach, where evapotranspiration is estimated as the residual when the net radiation, sensible heat flux and soil heat flux are known. Different moisture indicators derived from the evapotranspiration were then calculated: evaporative fraction, Priestley-Taylor parameter and surface resistance to evaporation. These calculated indicators facilitate the quantitative diagnosis of moisture stress status in pixel basis. The obtained results concern the validation of the used model for spatial distribution analysis of evapotranspiration and moisture indicators. The evaluation of evapotranspiration and surface energy fluxes are accurate enough for the spatial variations of evapotranspiration rather satisfactory than sophisticated models without having to introduce an important number of parameters in input with difficult accessibility in routine. In conclusion, the results suggest that METRIC can be considered as an operational approach to predict actual evapotranspiration from agricultural areas having limited amount of ground information.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • COMPARATIVE STUDY OF PHYSICOCHEMICAL PARAMETERS OF WATER OF FOUR WATERWAYS
           IN THE TOWN OF BRAZZAVILLE, REPUBLIC OF CONGO)

    • Authors: M. TCHOUMOU, M. KAMI-OUAKO, U. GAMPIO MBILOU, J. G. OSSEBI
      Abstract: The physicochemical parameters of water of four waterways crossing the town of Brazzaville were determined in upstream, the medium and downstream during the period from January 15 th to August 15th, 2015.The results of physicochemical analysis showed that the variation of of the parameters makes it possible to classify them in four group: the parameters which the quantities increase from the upstream to the downstream, the parameters which the quantities decrease from the upstream to the downstream, the parameters which the quantities increase between the upstream and the medium then decrease between the medium and the downstream and finally the parameters  which the quantities remain constant between upstream and the downstream.Except the turbidity and the suspended matter which the quantities are higher than the standards of WHO, the other parameters have quantities which are in general below the standards.The nature of the crossed grounds, the nature and the volume of the rejections received by each waterways as well as the behavior of the population living near each waterway are as many elements to be taken account to explain the variation of the physicochemical and parameters.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • CHARACTERIZATION OF DROUGHT WEATHER IN CLIMATE SEMIARID: CASE OF WATERSHED
           WADI BOUMESSAOUD (N- W ALGERIA)

    • Authors: S.A. BOUGUERRA, N. BENSLIMANE
      Abstract: Northwestern Algeria, like most Mediterranean regions experienced alternating wet and dry periods. In a context where climate change is conjugated news at the impact of human activities on the water overuse, it is essential to analyze the dry spells in various time scales for Prevention of rationalization of water resources. To this end, the rainfall series reconstructed three stations covering the river basin Boumessaoud study were analyzed. The analysis was based on the values of the standardized precipitation index (SPI) calculated for time scales of 10, 35 and 68 years. The results show that medium and long-term periods 1945-1952 and 1978-2010 have experienced significant droughts by intensity, duration and frequency. These dry episodes culminated especially in the early 80s with extremely severe type of drought. The stations Henaya the center of the basin and the Zenata in the far north are the most affected by drought compared to the Tlemcen station located outside near the limit of Southeast Basin.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • PHYSICO-CHEMICAL AND MICROBIOLOGICAL QUALITY OF WATER FROM THE SOURCES OF
           THE COMMUNITY OF TISSEMSILT "CASE OF AIN LOURA AND AIN SFA"

    • Authors: E. TIR, Y. BOUNOUIRA, A. CHEDAD
      Abstract: The present study consists in the evaluation of the quality of waters of two sources of the municipality of Tissemsilt, while making physicochemical analyses to determine the drinkability of waters and its nutritional qualities, and microbiological analyses to assure the absence of indicator germs of pollution.The results obtained for both sources and for the most part of the physicochemical parameters answer actually the Algerian standards, with the exception of the Nitrate (NO3-) for the source Ain LOURA which presents values between 146,7 and 198,9 mg/l what exceeds widely the standards fixed by the Algerian legislation (50 mg/l). Also the results of the microbiological analyses show a contamination translated by the presence of various germs (aerobic germs and total coliforms) for Ain SFA, and (fecal coliforms, streptococci and the sulphite-reducing Clostridium) for the source Ain LOURA.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • PHYSICO-CHEMICAL CHARACTERISTICS OF THE WATER IN THE RIVER LUKUNGA IN THE
           CITY OF KINSHASA (D. R. OF CONGO)

    • Authors: J.M. KAWAYA, J.P. OTAMONGA, P. NGELINKOTO, P. KABATUSUILA, J. MUBEDI ILUNGA
      Abstract: The water is a vital resource for the man, animal and plant species, and a solvent essential to economic activities. The objectives of this work are the characterization of the waters of the river Lukunga by the determination of the parameters of pollution (physico-chemical in the samples of water collected from various sites in its basin and the assessment of their impact on the riparian populations.The physico-chemical characterization of these waters has revealed that they are very responsible in organic matter in term of DCO (Avg.= 57,l2 mgO2/L), in DBO5 (Avg. = 38,84 nigO2/L), in dissolved oxygen (0.32 - 0.7 mgO2/L), in Suspend Mattet (Avg. = 9.40 mg/L), and mineral matter expressed in term of electrical conductivity (Avg 375 - 448 gSlcin) with an average pH of 6.7. The mean levels in nitrate ions, sulfate, and orthophosphate are respectively of the order of 394,2 mg/L, 16.7 mg/L and 29.1 mg/L.These values are very disturbing because they are superior to that of the standards of the WHO, which represents a certain risk for public health and for the environment. The pollution is important especially downstream of the station governance of Waters (Régideso) because the waters of the river Lukunga receive in addition of the effluent from the Régideso, of household waste and other landfills not controlled. It is appropriate that the public authorities are involved in the integral management of effluents and other waste finally to protect freshwater resources, a national heritage in degradation.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • RELATIONSHIP BETWEEN SURFACE AND UNDERGROUND WATER FLOW IN THE UPPER
           BANDAMA WATERSHED IN IVORY COAST

    • Authors: K.A. KOUAMÉ, A. KOUDOU, V. M. SOROKOBY, F. KOUAMÉK, A. M. KOUASSI
      Abstract: The Upper Bandama watershed is drained by two major rivers: the Bandama and the Marahoué. At the zone of convergence of these affluents, an unusual behaviour of water flow regime is observed. Namely, water flow decreases from Marabadiassa to Kossou while the flow on the Marahoué increases from Zuénoula to Bouaflé.  Significant volume decrease amounting to about 1 billion cubic meters is observed on the Bandama from Marabadiassa to Kossou while half a billion cubic meters of water is gained on the Marahoué from Zuénoula to Bouaflé. Dominant linear geologic fractures in NW-SE and NE-SW directions have been mapped using SPOT imagery. The fracture network is presumed to sustain underground water flow from the Bandama towards the Marahoué. The observed directions of the affluents of the river Bandama highlights a relationship between surface and underground water flow, which may regulate aquifer characteristics.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • ANALYSIS AND CORRECTION OF THE RAINFALL RECORDS IN SOME METROLOGICAL
           STATIONS OF THE AREA OF EL TARF (NORTH-EASTERN ALGERIAN)

    • Authors: W KHERIFI, H. KHERICI-BOUSNOUBRA
      Abstract: The area of El Tarf is along the littoral and fact part of the most sprinkled areas the Algerian North-East. The climate of El Tarf is of the wet Mediterranean type, characterized by two six months seasons each one.The low density amongst principal stations in our zone of study does not facilitate the interpretation of a weather parameter like pluviometry. What with obliged us to add some pluviometric stations available presenting long series. On the whole 5 weather stations and stations are retained with a series of observations (1975-2009).The correction of the annual values is calculated by the method known as of double office plurality. So that this method is effective, it would be necessary that the couples belong to the same climatic conditions and geographical.The classification of the indices of the pluviometric coefficients show that the negative pluviometric anomalies exceed the positive anomalies and that more the overdrawn long periods of years were recorded rough the year (1993).
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • GEOGRAPHICAL VIEW OF THE FISHERIES OF MONTENEGRO: OVERVIEW

    • Authors: R. GORAN, B. JELISAVKA
      Abstract: The paper analyzes some geographic aspects of fisheries of Montenegro. The total catch of marine fish by species was 741 tons, while the catch of freshwater fish amounted to 838 tons, which does not correspond to potential development of Montenegro. Specific problems related to the field of fisheries in Montenegro, according to the "Strategy of Fisheries Development Strategy of Montenegro (2006)” are: fishermen are reluctant to invest in their ships; the activities of ships confined to coastal waters, poor fishing tradition, almost no organized training of fishermen, ship repair problematic system to record the amount of fish caught is not good, lack of adequate fishing ports, lack of specialized stores for sale of fishing gear and equipment, the high cost of shipping fuels ... Ships the fishing fleet are very old (over 40 years old on average), it is impossible to catch them at greater depths, are quite uncertain for work, and is required to restore them. Compared with other countries in the Adriatic, Montenegro has an extremely small trawler fleet (0007 of ships per km² in the territorial sea). None of the fishing boats have not worked is outside 12 nautical miles. Membership in the European Union, Montenegro will receive direct access to the single market of the European Union; Montenegrin fishermen will get the option of an equal placing fish on the market. Using funds from the European Fisheries Fund, as well as better organization of the fisheries sector through the association in producer organizations, will enable better positioning of Montenegrin fisheries market in the wider European context.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • CONTRIBUTION OF GR4J MODEL FOR MODELING AGNEBY WATERSHED RUNOFF IN
           SOUTHEAST OF COTE D’IVOIRE

    • Authors: B. KAMAGATE, A. DAO, D. NOUFE, K.L. YAO, V. FADIKA, D.L. GONE, I. SAVANE
      Abstract: Watershed Agneby is located southeast of the Côte d’Ivoire. This basin has a vulnerability to climate change manifested by an increased sensitivity to extreme situations (floods and drought) since 70’s. This natural determinism seems to be reinforced by population increasing whose economic activities are based on water resources. View this problem which challenge is to satisfy water demand; we proposed to model the flows for an immediate assessment of the water balance. To achieve this, data of precipitation, evapotranspiration and runoff discharge collected over the 1984-2009 period were ejected in GR4J model to assess its performance in runoff simulating. The results gave satisfactory wedging in Nash values (60-80%). In addition, the comparison of observed and simulated hydrographs showed that the flow dynamics is well respected and floods are reproduced in calibration and validation. All these results have shown a good performance of GR4J model to reproduce the flows in the basin. Thus, the calculated water balance showed that 75% of the annual average rainfall estimated at 1168 mm for the period 1984 to 2009 has evaporated. The runoff is about 2%, while infiltration is about of 23%.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • CHARACTERIZATION OF SURFACE WATER AROUND A AGRO-INDUSTRIAL COMPANY IN
           MAROUA-CAMEROON

    • Authors: A ABOUBAKAR, W. ABDOUL, L. BOUBA
      Abstract: The aim of this work is to study the quality of surface water around Agro-industrial entreprise of Maroua. To attend this objective, a physico-chemical and bacteriological analysis was done. The results show different parameters as follow: the highest nitrate concentrations was observed in S1 (165 mg/L) and the lowest was found for the site S4, in the ammonium concentrations observations was (17.9 mg/L for the site S1, 3.2 mg/L in the site S2, 72.2 mg/L in the site S3, 17.2 mg/L for the source S4 and 87.7 mg/L for the site S5). The iron concentrations was observed as follows, (0.31mg/L for S1, 1.25mg/L for S2, 0.49 mg/L for the S3, 0.48mg/L for S4 and 1.06mg/L for the S5). Those values were very high compared to international standards. This is increasing contamination by human activities and climatic conditions of the region are characterized by flows of very small water during the raining season adds to it the dumping of all industrial effluents in the river without treatment. This has the effect of increasing concentrations of pollutants discharged into rivers then causing a deterioration in the quality of surface water .In view of the above the waters studied are of poor quality.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • POLYCYCLIC AROMATIC HYDROCARBONS IN CONVENTIONAL AND NON-CONVENTIONAL
           WATER RESOURCES USED FOR IRRIGATION IN TUNISIA

    • Authors: I. HADDAOUI, O. MAHJOUB, B. MAHJOUB, A. BOUJELBEN, M. BAHADIR
      Abstract: Wastewater treatment plants (WWTPs) are considered major sources of pollution in water resources and in the environment. Polycyclic aromatic hydrocarbons (PAHs) are of particular interest since they are persistent, bioaccumulative, toxic, carcinogenic, mutagenic, and some of them are listed as potential endocrine disruptors’ compounds.The occurrence and distribution of 16 priority PAHs of the USEPA were investigated in water resources used for irrigation in Tunisia (treated wastewater (TWW), surface water and groundwater).The analysis showed that the sum of PAHs ranged from 0.47 to 2.47 µg/L in TWW, from 0.30 to 3.93 µg/Lin surface water, and from 0.12 to 2.80 µg/L in groundwater. PAHs accumulation in water resources showed a temporal and spatial distribution in favor of dry weather and WWTP effluents discharge point. The results show that low molecular weight (LMW) PAHs are the most abundant in all water samples compared to high molecular weight (HMW) PAHs, suggesting pyrolitic sources of production and emission.The result of this investigation highlights the potential accumulation and effects of PAHs on soils and plants irrigated with TWW.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • THE BENI HAROUN RESERVOIR (ALGERIA) IS IT THREATENED BY SILTATION?

    • Authors: B. REMINI, A. TOUMI
      Abstract: In arid and semi-arid regions such as Algeria, siltation is a hydraulic problem which poses enormous problems to managers of dams including the reduction in capacity. This article discusses the silting of the Beni Haroun Reservoir who considered the largest Algerian dam. Based on the first conducting bathymetric survey in 2013, a volume of mud is 118 million m3 were deposited during ten years of operation, an annual rate of siltation of 1.2% / year. The Beni Haroun Reservoir is ranked among the most threatened by the phenomenon of silting of dam. In this case, the dam cannot reach one century an operating; a very short time for a large dam. Priority will be given to desalting of dam
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • DIAGNOSTIC STUDY AND RESIZING OF THE IRRIGATION SYSTEM BY SPRINKLING OF
           THE FOREST NURSERY OF OUED EL BIR, EL HAOUARIA-TUNISIA

    • Authors: A. SAIDI, A. MIMOUNI, Y. AMMARI, H. DAGHARI
      Abstract: Some forest nurseries, qualified as modern, were the site of several failures related mainly to irrigation management which disadvantages the production of plants of good quality and consequently their installation and their ability to overcome transplanting crises. This study is a contribution to the program of Oued El Bir forest nursery (which is belonging to the delegation of El Haouaria, Nabeul governorate in the North East of Tunisia) rehabilitation. In this work, we carried out a diagnostic study of the existing hydraulic infrastructure in addition to irrigation network sizing in order to reveal existing dysfunctions and then propose possible remedies. Diagnosis study revealed some anomalies throughout the irrigation network such as water losses and equipments wear (valves, sprinklers, pipes, head station equipment and electrical cabinet). The sizing calculation has shown that existing network is oversized and adopted irrigation strategy is not strictly appropriate to the network characteristics.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • FLOODS TYPOLOGY IN SEMIARID ENVIRONMENT: CASE OF AIN SEFRA WATERSHED
           (KSOUR MOUNTAINS, SAHARIAN ATLAS, SW OF ALGERIA)

    • Authors: A. DERDOUR, A. BOUANANI, K. BABAHAMED
      Abstract: The watershed of Ain Sefra covers an area of 1957 km2, it is located in the SW of Algerian territory in an area called Ksour Mountains. It is moderately elongated and characterized by a fairly widespread network, steep slopes and relatively impermeable terrains with variety lithology, providing a favorable environment for the development of flashfloods.The surface flow regime in this semi-arid region is consistent with the rainfall. Floods are highly variable and irregular, short and stormy, with very high peak flows if compared to the average modules, they are characterized by a very fast rise, leading severe damages in Ain Sefra city, and a slow decline followed by a prolonged dry period. Autumn is reported as risky season. The flow in dry periods demonstrates a groundwater potential, which is produced by the Atlas relief that shows a fairly strong hydrological relationship between surface water and groundwater.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • EXPERIMENTAL STUDY OF MASS TRANSPORT IN SATURATED POROUS MEDIA: "MODELING
           IN THE LABORATORY"

    • Authors: T. IKNI, A. BERREKSI, M. BELHOCINE, M.L. NEBBAR, R. BENKADJA
      Abstract: This work is part of the understanding of the mechanisms of transport and retention of suspended matter in a saturated porous medium. It concerns the transport of suspended particles (SP) and the dissolved tracer (DT). The experiments are based on instantaneous injections of these two tracers (SP and DT). The tracing was carried out for a Darcy velocity range from 0.052 to 0.285 cm/s, the purpose of which is to study the influence of flow velocity on the phenomenon of transport and deposition of suspended particles. An analytical model of convection-dispersion with first order deposition kinetics made it possible to adjust the restitution curves and to deduce the hydro-dispersive parameters. This experimental study made it possible to demonstrate that the particles in suspension arrive behind the dissolved tracer (fluorescein). This difference in behavior is attributed mainly to the weights, size and frequency of collision of the particles with the grains of the medium. This study also showed that the rate of restitution and dispersion increase with speed. The retention rate and the filtration coefficient decrease as the speed increases.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • HYDRAULIC JUMPS IN A STRAIGHT RECTANGULAR COMPOUND CHANNEL: THEORETICAL
           APPROACH AND EXPERIMENTAL STUDY

    • Authors: A. BENABDESSELAM, B. ACHOUR, L. HOUICHI
      Abstract: In this paper, theoretical developments, regarding the establishment of dimensionless relationships for sequent depths ratio and relative energy loss of hydraulic jumps are achieved in a straight rectangular compound channel. These relationships were given with and without consideration of a volume force Fx, which is assimilated by analogy to Borda-Carnot’s expression. The Experiment was carried out with three different values of the width ratio τy. For each τy ratio, several values of inflow Froude number were considered according to the five inflow ratio depths’ values τz. The experiments proved the validity of the proposed theoretical relationships. The study showed the need to consider the force Fx when the ratio τy reaches the value of 0.5. It reveals also the practical usefulness of the compound channel in terms of energy dissipation capability compared to the rectangular channel.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • PHENYLALANINE AND CATECHOL FLOCCULATION TESTS AND MECHANISMS IN THE
           PRESENCE OF ALUMINIUM SULPHATE

    • Authors: L. HECINI, S. ACHOUR
      Abstract: The purpose of this work is to observe and to interpret the types of interactions between aluminium sulphate and aromatic organic compounds such as catechol (hydroxyl function) and phenylalanine (amino-acid). The influence of different reaction parameters such as the coagulant dose, the pH effect and the initial concentration of the organic compound are tested by means of Jar test trials. All this is done in distilled water. The results obtained can suggest that the chemical structure of the compound and the nature of the functional groups (hydroxyl or amine) could condition the effectiveness of the flocculation of these substances. The main mechanisms would be either a physical adsorption, a ligand exchange or a complexation on the surface of the aluminum hydroxide flocs.
      PubDate: 2017-03-30
      Issue No: Vol. 0 (2017)
       
  • APPLICATION OF MULTIVARIATE STATISTICAL ANALYSIS METHODS TO THE STUDY OF
           THE MINERALIZATION OF THE AQUIFER SYSTEM WATERS THE PLAIN OF GHRISS (NORTH
           WEST ALGERIA)

    • Authors: L. BENADELA, B. BEKKOUSSA
      Abstract: Plain of Ghriss, located in the North West of Algeria, is a semi-arid climate zone. It borders a groundwater resource heavily exploited for irrigation plots and for the needs of the local population. In the absence of other resources, conventional or not, the groundwater in the plain of Ghriss remain the driving force of the development of the region. This work was led from the results of analysis of physical-chemical parameters of water and relied on a sample of 35 boreholes. The methodology is based on multivariate statistical approach (Principal Component Analysis (PCA) and Hierarchical Classification (AHC)). The combination of these methods helped provide answers to our problems. This study identified two main mechanisms that are responsible for the evolution of the mineralization of the waters of the region. The first type, characterized by high mineralization represents the infiltration of surface water (rain and effective return of irrigation water). It is located especially in the northeastern part of the plain. The second type, rich in bicarbonates, representing recharge water from carbonate formations in the southeast of the plain.
      PubDate: 2017-03-19
      Issue No: Vol. 0 (2017)
       
 
 
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