Algerian Journal of Arid Environment “AJAE” 2021-03-11T20:26:00+00:00 OULD EL HADJ Med Didi Open Journal Systems <p><span class="tlid-translation translation" lang="en"><strong><span title="">Algerian Newspaper Of Arid Environment "AJAE"</span></strong><br><span class="" title="">Edited by the University Kasdi Merbah Ouargla</span><br><span class="" title=""><strong>DOI:</strong> S10.12816 / 0008911</span><br><span class="" title=""><strong>ISSN</strong> 2170-1318 <strong>.EISSN</strong>: 2588-1949</span><br><span class="" title=""><strong>GLOBAL IMPACT FACTOR:</strong> 0.654 for the year 2015</span><br><span class="" title=""><strong>INDEX COPERNICUS:</strong> 5.25 for the year 2013</span><br><span class="" title=""><strong>Editor in chief:</strong> Pr OULD EL HADJ Mohamed Didi</span></span></p> ANALYSIS OF HEALTH INDICATORS AND THEIR IMPACTS ON AGRICULTURAL PRODUCTION OF HOUSEHOLDS IN THE RIVER VALLEY OF THE COMMUNE OF KOURTEY IN TILLABERY (NIGER) 2021-03-08T11:39:16+00:00 SANOUNA Abdoulkarimou SOUMANA Boubacar MOUMOUNI Hassane ADAM Toudou IDRISSA SAIDOU Mahamadou <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>Health is one of the components that influence the productive capacity of agricultural households. This study on the analysis of health indicators and their impacts on agricultural production was carried out in the commune of Kourthèye, in the river valley of the department of Tillabéri (Niger). The study is of a cross-sectional type based on a documentary research and a collection of primary data at the level of the households of the 6 villages chosen at random. A linear model with an equation not only allowed us to see the indicators that significantly affect production, but also to estimate the share of losses that each disease can cause in the main crop of farmers. In addition, an econometric approach through the regression of adjustment of functions made it possible to show the distribution of households in relation to the number of sick people and the different productions. These results show a strong negative correlation between the main diseases in the area and irrigated production. Thus, malaria and chronic diseases are correlated with production respectively with coefficients of -0.75 and -0.40. The significance thresholds are respectively 1% and 10% for these morbidities. Indeed, the malaria attack of an agricultural worker in a household could reduce agricultural production by 68.53kg. It appears that the impacts of health indicators are more noticeable among the very poor and poor than among the middle and better-off.</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## STATUS REPORT OF THE ALGERIAN WETLANDS: TYPOLOGY AND INVENTORY 2021-03-08T11:44:18+00:00 SAÏFOUNI Aïda BELLATRECHE Mohammed <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>Our study relates to an inventory of wetlands in Algeria, with the proposal of a new typology of wet habitats. The aim is to standardize the information base relating to Algerian wetlands, on the one hand, and to establish a classification of all wetlands in the country, on the other. The method adopted is a national inventory of wetlands carried out between 2018 and 2019, which reported 5404 wetlands, among which, 4252 natural and 1152 artificial. Numerically, the ecological region of the North East occupies the first place with 1585 wets sites, followed by the Nord-Center region (1479 sites), the High-Plateau region (1095 sites), the South region (660 sites), and finally, we find the North West region with 585 wetlands. The new classification system for the main wetland habitats is divided into two categories: “coastal” marine wetlands and “terrestrial” continentalwetlands. The new typology adopted has made it possible to identify 71 habitats at the national level, including 46 continental habitats and 25 "coastal" marine habitats. Finally, our study represents a working tool both for scientists and for planners and managers, concerned with the sustainable use of the country's wetlands.</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## TOURISM A FACTOR OF PEACE AND SOCIAL COHESION IN AGADEZ REGION (NIGER) 2021-03-08T11:53:29+00:00 MOUSSA DIT KALAMOU Mahamadou <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>Niger conceals important tourist potentialities, in particular tourist sites and rare or endangered species (the giraffe, the addax, the oryx...). This characteristic of biological diversity is favourable to the development of ecotourism, visionary and sustainable tourism. The tourist activity is mainly concentrated in two poles which are the northern part of the country and the region of the river and the W National park of Niger on the three existing poles (North pole in the region of Agadez, West pole of the region of the river and central-east pole of the region of Zinder. Indeed, the tourism sector generates important financial resources and employment for young Nigerien women and men. It has proved its worth in the socio-economic development of regions with high tourism potential during periods of security certainty. Thus, inter-community mixing, discovery of the environment and profitability contribute to boosting the economy in a context of peace and social cohesion for the country. Nevertheless, tourism, which is a multifaceted activity, could lead to scourges such as irregular migration and debauchery if it is poorly controlled and not secured by the actors in charge of management. Based on bibliographical research and knowledge of the environment, this article will deal with tourism as a factor of peace and social cohesion in Niger in general and in Agadez in particular.</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## DETERMINATION OF CROPS COEFFICIENT OF LOCAL DURUM WHEAT VARIETIES IN SEMI-ARID AREA 2021-03-08T12:05:23+00:00 LABAD Ryma TAIBI Mourad HAMDI CHERIF Zineb El BATOUL HERIZI Meriem <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>The present study aims to determine the crops coefficient of two locals varieties of durum wheat :“Boutaleb” and “Bousselam” during the 2019/2020 crop season. The experimental studies werecarried out on six lysimeter, under irrigated conditions at the site of the Technical Institute of Field Cultures in Setif (ITGC). Crops coefficient “Kc” was calculated using referenceevapotranspiration “ET0” and maximum evapotranspiration “ETM”. ET0 was calculated usingcropwat software and ETM by water balance using the lysimeter. The curves of the cropscoefficient obtained for the two varieties “Boutaleb” and “Bousselam” are similar that are given by the FAO, but the differences exist in the values. The water efficiency of "Bousselam" variety is 48.28 Kg ha-1mm-1 which is more efficient than "Boutaleb" variety</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## ECONOMIC AND SOCIAL IMPACTS OF MIGRATION ON HOUSEHOLDS HEADS IN TAHOUA’S REGION (NIGER) 2021-03-08T12:04:34+00:00 MOUSSA DIT KALAMOU Mahamadou YAMBA Boubacar <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>Due to its strategic position between North Africa and Sub-Saharan Africa, Niger is a land of intense mobility through the departure and transit of many migrants whose flow came from all West African countries. The geopolitical context is currently dominated by insecurity in the eastern part of the country and the north of neighbouring Nigeria (war imposed by the Boko Haram nebula) ; and the instability of the border countries to the West (Mali) and to the North (Libya) push the populations to seek refuge by migrating massively (more than 60% of migrants towards the Maghreb and Europe pass through Niger according to the International Organization for Migration) and irregularly towards the big mining cities of the North of Niger (Agadez, Arlit, Djado and Dirkou) which are the gateways to the North African country and then to the Mediterranean in order to reach the European countries. In addition to all these security problems, there is the problem of food and land insecurity which forces rural populations such as those in the Tahoua region to migrate for a temporary or seasonal exodus which will end in a long term migration by dint of a taste for adventure. Rural people who face cyclical deficits imposed by climate change are looking for household well-being and food supplements. This article deals with the exodus which will be considered as a local migration and at the same time an initiation to regional and intercontinental migration. It will highlight the socio-economic impacts of exodus acting on households in the region of Tahoua in Niger.</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## OPTIMIZATION AND MODELING OF ENVIRONMENT PARAMETERS ON THE GROWTH OF "Saccharomyces cerevisiae" ISOLATED ON DATE BIT 2021-03-11T20:15:59+00:00 CHIBI Souad EL HADI Djamel <div class="page" title="Page 1"> <div class="section"> <div class="layoutArea"> <div class="column"> <p>- This work focused on the metabolic and kinetic analysis of two strains of yeasts Saccharomyces cerevisiae (S1 and S3), isolated from juice of dates poorer quality Degla-Beida and Mech-Degla respectively. Based on the methodology of the experimental plans to study the influence of environmental factors (pH, temperature, initial concentration in ethanol and salinity) upon the growing of the yeasts. The parameter value of the growing of Saccharomyces cerevisiae are fixed according to the results of the experiment plan and the data collection was made according to a centered composite plan, so as to study the linear effects, the quadratic effects and the interactions between factors. The results obtained show that the yeast S3 was able to grow at an aggressive pH of order 3 and at a temperature between 20 and 38°C in the presence of a high alcohol content 14%. The production of the S3 cell biomass was improved (Xmax = 4.7308 g/l) by optimizing the temperature, pH, NaCl and ethanol content factors set respectively at 29°C., 4.34, 2% and 3%. 23%. It has been concluded that this strain may well adapt to industrial uses for large scale bioethanol production.</p> </div> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## CARTOGRAPHIC EVIDENCE OF THE RECENT DISSEMINATION OF THE ARGAN TREE IN NORTHERN MOROCCO 2021-03-11T20:20:50+00:00 KECHAIRI Réda BENMAHIOUL Benamar <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>GIS cartographic processing was carried out to verify a hypothesis put forward by some authors, stating that the position of isolated argan tree stations in northern Morocco is due to recent dissemination. With cartographic evidence, we were able to deduce a historical link between the 10th and 12th century, where the caravan routes crossed the two islets, Beni-Snassen and Wadi Grou.</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement## EXPERIMENTAL STUDY OF A RETROFITTED SOLAR PHOTOVOLTAIC THERMAL COLLECTOR SET AT A VERTICAL INCLINATIO 2021-03-11T20:26:00+00:00 BOUDJABI Amel Ferial BOUCETTA Chahrazed GHOUL Roumeissa DIB Abderrahmane <div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>Renewable energy systems and their efficiency have major factors on building’s sector. This studyconcerns an experimental investigation of hybrid photovoltaic thermal collector, simulating a building integrated photovoltaic façade. The retrofitted solar panel ensured good electrical conversion efficiency with an average gain of 7% and 8.85% for the two optimal configurations compared to the conventional panel. Besides, the heat discharged from the cells preheats the airflow at rear of the panel resulting thermal efficiency of 60 to 70%. Amongst the tested configurations, two cases showed electrical and thermal efficiencies’ enhancement: lower power device in air extraction mode and higher power device for incoming air case.</p> </div> </div> </div> 2021-03-08T00:00:00+00:00 ##submission.copyrightStatement##