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Impacts De L’urbanisation Sur Les Caractéristiques Morphologiques Et Les Apports En Eau Du Barrage Hydro-Agricole De Nanan Dans Le Département De Yamoussoukro (Côte d’Ivoire)

The significant decrease in the water level of the Nanan agricultural dam is becoming very worrying for rice farmers. In this study, we analyzed the land use dynamics of dam watershed and its impacts on morphological characteristics and reservoir inflow. This analysis was conducted by coupling the satellites images of Landsat sensors over a thirty years, Digital Terrain Model...

Modelisation Des Changements D’occupation Des Terres En Region Soudanienne Au Nord-Ouest Du Benin

In north-west Benin, land occupation is undergoing a significant dynamic due to intense human activities putting the ecosystem in precarious balance. The objective of this study is to quantify landscape dynamics and explore possible futures of land use using remote sensing, GIS and spatiotemporal modelling tools. Landsat socio-economic data and images (1987, 2000 and 2016) were...

Dynamique Des Eléments Nutritifs Et Du Phytoplancton Dans Le Barrage Béni Haroun Dans l’Est Algérien

In order to monitor the water quality of the Beni Haroun dam, used for the drinking water production, our research work aims to provide new scientific data on the phytoplankton population of the dam. This contribution is a qualitative and quantitative investigation of this important link in the ecosystem equilibrium. To our knowledge, this study has never been the subject of a...

Caractéristiques Dimensionnelles Des Principaux Organes Du Tractus Génital Mâle De Anisopteromalus Calandrae Howard (Hymenoptera: Pteromalidae) En Fonction De L’âge

The reproductive capacity of the parasitoïd of cowpea bruchids Anisopteromalus calandrae Howard (Hymenoptera: Pteromalidae) male depends on the number of spermatozoa produced and spilled in the seminal vesicle. The objective of this study is to determine the dimensional characteristics of the different parts of the male genital tract of A. calandrae depending on age. Photographs...

Effet De La Technologie, Du Cultivar Et De La Durée De Conservation Sur La Stabilité Et La Qualité Du Lait De Soja (Glycine maxima)

Three technologies named D (wet dehulled soybeans seeds), B (boiled soybean seeds before dehulling) and T (roasted soybean seeds before dehulling) for stabilized soymilk production were tested with TGX (large grain size) and Jupiter (small grain size) cultivars. Production yields, sensory, physicochemical and microbiological characteristics of produced milks were determined over...

Efficacité De La Pollinisation Entomophile Du Palmier A Huile Dans Les Plantations Du Sud-Ouest Et Du Sud-Est De La Côte d’Ivoire

Low fruit set rates in oil palm plantations may be related to inadequate entomophilous pollination. The objective of this study was to follow the variations of fruit set and to determine its relationships with the entomofauna visiting inflorescences at La Mé, Grand-Béréby and Iboké in Côte d’Ivoire. Densities of the insects were followed out on male and female inflorescences...

Systèmes Agroforestiers A Garcinia Kola Heckel Au Sud-Est Du Bénin : Distribution Géographique, Connaissances Endogènes Et Retombées Financières

This study was carried out in three districts (Avrankou, Adjarra, and Ifangni) of south-eastern Benin, and aimed to analyze the socio-economic and ethnobotanical importance of Garcinia kola Heckel, in order to contribute to their sustainable management. Focus groups were conducted with three groups, composed of 10 owners of G. kola per district each and the result showed that...

Importance Ethnobotanique Et Des Menaces Sur Le Délice Du Boboye, Neocarya Macrophylla (Sabine) Prance, (Chrysobalanaceae) Dans La Vallée Fossile Du Dallol Bosso (Niger)

The present study conducted in the Dallol Bosso fossil valley aims to know the local perception of the level of threat on the Neocarya macrophylla species in order to provide indicators of sustainable management of the natural stand. To do this, surveys were conducted in two agro-ecological zones.The collection of information was carried out through a simple questionnaire based...

Banque Centrale Et Politique Budgetaire : Une Évidence Empirique Pour La Zone CEMAC

The purpose of this article is to analyze how the degree of independence of the Bank of Central African States (BEAC) influences the level of budget deficit for the countries of the Economic and Monetary Community of Africa Centrale (CEMAC) over the period 1994-2016. To do this, we rely on the statutory and rotational indicators of central bank governors developed by the...

Dynamique De L’occupation Du Sol Dans Les Zones Humides De La Commune D’allada Au Sud-Benin (Sites Ramsar 1017 Et 1018)

The wetlands are the integral element of the natural resource of Benin Republic. However, anthropic pressure on those “fragil” environments, contribute to the reducing of their surface and accordingly, to a loss their biodiversity. The target objective is to make cartography of land units from 1990 to 2014 in order to identify the various pressures upon the wet ecosystems. A 2014...

Contamination Métallique D’une Espèce De Poisson (Brama Brama) De La Côte Dakaroise

Pollution of metal origin constitutes one of the major risks in the world today. The metal elements can be very dangerous to human health when they are present in the environment at high concentrations. Thus, the evaluation of the metal contamination in marine organisms, especially fish, makes it possible to predict a possible contamination of humans. This paper focuses on...

La Création Et La Vénération Des Saints Au Maroc

This article, which is part of social and religious relations, tries to study the sainthood and the cult of saints in Morocco. In order to achieve the objective of this work, we adopt an empirical method, which is based essentially on documentary research. To analyze the cult of saints in Morocco, this article presents, at first, the definitions of the words " sainthood " and...

Intercommunalite Et Amenagement Du Territoire Dans Le Departement De L'atacora Au Nord Ouest Du Benin

Despite the 2009-17 law of 13th August 2009 which lay down that the Public Institution of Intercommunity Cooperation (EPCI) is the only form of intercommunality body in Bénin, municipal groupings still exist in associative form. This article analyses the impact of intercommunity cooperation on territory planning in the Department of Atacora. Data and information used have been...

Analyse De L'efficacité Technique Des Exploitations Agricoles Familiales À Maurice

This study was undertaken to determine the technical efficiency of family farms and to identify the factors which determine their productivity. All in all, 200 farmers were randomly selected and interviewed using a structured questionnaire to obtain data on agricultural production and input use during 2014. The Data Envelopment Analysis (DEA) technique was used to determine the...

Impact Des Conflits Armes Sur La Sante Maternelle En Cote d’Ivoire: Cas Des Conflits Armes De 2002 Et De 2010

The "new conflict" that emerged in the 90s, mainly in developing countries, is a major obstacle to improving health. Quantitative studies of the impact of armed conflict on maternal health indicators are still fragmentary and scarce. The purpose of this study is to analyze the impact of the 2002 and the 2010 conflicts on maternal health in Côte d'Ivoire. In this study, we choose...

Détermination Du Seuil De Viabilité De La Position Extérieure Au Maroc: Evaluation Empirique

This paper focuses on addressing question on the sustainability of the Moroccan current account. The purpose of this study is to examine theoretical and empirical determinants of the behaviour of the current account deficit in order to apprehend economic policy decisions. An econometric study was conducted in this sense using a vector error-correction model (VECM) during the...