scholarly journals Estimate of Organic Carbon Stocks of Some Soils under Cotton Growing in the North of Côte d’Ivoire: Case of Korhogo department

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Alui Konan Alphonse ◽  
N’Guessan Kouamé Antoine ◽  
Goure Doubi Bi Irie Herve ◽  
Yao-Kouamé Albert
Keyword(s):  
Organic Carbon ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Carbon Stocks ◽  
Cote D’Ivoire ◽  
The North ◽  
Côte D'ivoire

Antidiarrheal plants sold by the herbalists of Abobo commune market in the north Abidjan (Côte d’Ivoire)

2020 ◽  
Vol 45 (1) ◽  
pp. 7853-7869
Author(s):  
SIDIO Serge-Roland ◽  
KOMAN Sylvere Romuald ◽  
N’GUESSAN Koffi
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Psidium Guajava ◽  
Cote D’Ivoire ◽  
Preparation Methods ◽  
Plant Organs ◽  
Euphorbia Hirta ◽  
The North ◽  
Côte D'ivoire ◽  
Traditional Herbalists

The present study was done in seven markets of Abobo (Côte d’Ivoire) for inventory vegetal antidiarrheal resources. Ethnobotanical information obtained beside 44 traditional herbalists, based on interviews, show that 18 plants species are used to cure to diarrhoea. They are belonging to 17 genera and 11 families. The best represented families were: Euphorbiaceae. Three species commonly cited by healers were: Psidium guajava, Alchornea cordifolia and Euphorbia hirta. Various plant organs are used for the preparation of drug recipes. Leaves are the most used. These receipts which are mainly multispecific require different preparation methods (decoction, soaking and kneading). Most remedies are prepared as a decoction. Administration was essentially oral. This study constitutes a source of very precious information for subsequent researches for the domains of the phytochemistry and pharmacology in order to search for new natural substance. RÉSUMÉ Plantes antidiarrhéiques vendues par les herboristes des marchés de la commune d’Abobo, au nord d’Abidjan (Côte d’Ivoire). La présente étude a été conduite dans sept marchés de la commune d’Abobo (Côte d’Ivoire) pour inventorier les ressources végétales antidiarrhéiques. À l’aide de fiches questionnaires, les informations ethnobotaniques obtenues auprès de 44 herboristes, révèlent que 18 espèces de plantes sont utilisées pour combattre la diarrhée. Elles sont réparties en 17 genres et 11 familles avec une importante représentativité des Euphorbiaceae. Les trois espèces couramment citées par ces herboristes sont : Psidium guajava, Alchornea cordifolia et Euphorbia hirta. Différents organes de plante sont utilisés pour la préparation des recettes médicamenteuses. Les feuilles sont les plus employées. Les recettes, majoritairement plurispécifiques, nécessitent diverses méthodes de préparation (décoction, macération et pétrissage). La majorité des remèdes est préparée par décoction. L'administration des remèdes est faite essentiellement par la voie orale. Cette étude constitue une source d’informations très précieuse pour les recherches ultérieures dans les domaines de la phytochimie et de la pharmacologie en vue de rechercher de nouvelles substances naturelles.

scholarly journals How to Certify Learning in a Country Split into Two by a Civil War: Governmental and Non-Governmental Initiatives in Côte d'Ivoire, 2002–06

2007 ◽  
Vol 2 (3) ◽  
pp. 191-209 ◽  
Author(s):  
Magali Chelpi-Den Hamer
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Grey Literature ◽  
Cote D’Ivoire ◽  
The North ◽  
Côte D'ivoire ◽  
Displaced Children ◽  
Initial Work ◽  
The Government ◽  
Political Turmoil

Following political turmoil and rising socio-economic difficulties, Côte d'Ivoire has been split into two since September 2002. The rebellion controls the northern part of the country and the main towns of Bouaké, Korhogo and Man, while the government controls the southern part with Abidjan, Yamoussoukro, Daloa and all the ports in the coastal area. At the beginning of the war, civil servants who were in place in the north of the country were called back to Abidjan to be redeployed in government-controlled areas. These included many teachers and education officials, but not all, as some of them chose to stay in the war-affected areas to continue their initial work. This article focuses specifically on governmental and local non-governmental initiatives related to education which were put in place at the onset of the crisis. What type(s) of education have been offered to the children in war-affected areas and to the displaced children in government-controlled areas? What have been the difficulties of organizing national examinations in war-affected areas? How have educational attainments been certified on both sides? The study covers the period 2002–06, and is based on document analysis, grey literature collected on site and interviews with key informants.

scholarly journals CHEMICAL SOIL FERTILITY DIAGNOSIS FOR COTTON CROPPING IN NORTHERN COTE D'IVOIRE

2021 ◽  
Vol 9 (8) ◽  
pp. 27-34
Author(s):  
L. B. Diomandé ◽  
G. R. Soro ◽  
S. Soro ◽  
Et Yao Kouamé A.
Keyword(s):  
Soil Fertility ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Chemical Properties ◽  
Low Carbon ◽  
Cotton Production ◽  
Cote D’Ivoire ◽  
The North ◽  
Côte D'ivoire ◽  
Cotton Belt

The work was conducted in the north of Cote d’Ivoire, central pivot cotton production savannah area, to make the diagnosis of soil fertility for cotton cropping. Cotton cropping, the mainstay of the savannah's economy, suffered from low productivity in relation to the soils chemical properties. Prior cultivation, soils samples were collected at a depth of 0 to 30 cm, collecting 32 simple samples to generate a complete sample. The samples were sent to the soil laboratory to measure the pH unities, CEC, nitrogen, phosphorus, potassium, calcium, magnesium, sodium, iron, zinc, copper and manganese contents. In order to facilitate the interpretation of analysis results, the nutrients critical level recommended for optimum production of cotton were used. Results showed that soils had pH ranging from 4.4 to 6.4. On the other hand, the need to add nitrogen, magnesium and phosphorus to the soils and to augment the low carbon, calcium and potassium content. There is the need to search for fertilizer formulations with nitrogen, magnesium phosphorus and calcium for the Cote d'Ivoire cotton belt.

scholarly journals Dynamique D’occupation Du Sol Et Diversité Floristique De La Forêt Classée De La Palé (Côte d’Ivoire)

2021 ◽  
Vol 17 (43) ◽  
pp. 1
Author(s):  
Pagadjovongo Adama Silue ◽  
Dramane Soro ◽  
Konan Edouard Kouassi ◽  
Dodiomon Soro
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Scientific Information ◽  
Political Crisis ◽  
Cote D’Ivoire ◽  
North West ◽  
The North ◽  
Côte D'ivoire ◽  
Rate Of Decline ◽  
Changements Climatiques

Les forêts classées du Nord de la Côte d’Ivoire connaissent un phénomène d’anthropisation accrue, notamment à la faveur de la crise sociopolitique de 2002 à 2011. A cela, s’ajoute l’effet des changements climatiques qui ont des conséquences sur la qualité de la biodiversité. Cette étude recherche, à travers l’analyse de paramètres floristiques et de la dynamique d’occupation du sol, des informations scientifiques fiables devant guider les orientations d’aménagement d’une forêt classée située dans la Région de la Bagoué, au Nord-Ouest du pays. L’étude de la dynamique de la couverture végétale de la Forêt classée est réalisée à travers une analyse diachronique des images satellitaires Landsat ETM de janvier 2002 et ETM + de mars 2016. L’appréciation des paramètres floristiques est basée sur l’interprétation des données d’inventaire floristique. Les résultats cartographiques montrent une régression des formations boisées passant de 81,75 % en 2002 à 71,19 % en 2016, soit un taux de régression annuel de 0,7 %. Concernant l’étude floristique, au total 281 espèces végétales, réparties entre 210 genres et rangées dans 71 familles, ont été inventoriées dans la forêt classée. Par cette flore, 18 espèces ont présenté un statut particulier, preuve de la valeur de conservation de cette formation végétale. Ce résultat pourrait servir pour la mise en place d’une forêt classée dans la Région de la Bagoué en Côte d’Ivoire. The classified forests of the north of Ivory Coast are experiencing an increased anthropization phenomenon, in particular thanks to the socio-political crisis from 2002 to 2011. In addition to this is the effect of climate change that has consequences on the quality of biodiversity. This paper focuses on the analysis of floristic parameters, the dynamics of land use, and reliable scientific information to guide the development orientations of a classified forest located in the Bagoué Region in the North-West. The study of the dynamics of the vegetation cover of the classified forest was carried out through a diachronic analysis of the Landsat ETM images of January 2002 and ETM + of March 2016. The appreciation of the floristic parameters is based on the interpretation of the floristic inventory data. The cartographic results show a regression of woodlands from 81.75% in 2002 to 71.19% in 2016, i.e., an annual rate of decline of 0.7%. Concerning the floristic study, a total of 281 plant species, divided between 210 genera and arranged in 71 families, were inventoried in the classified forest. Through this flora, 18 species presented a special status, which is a proof of the conservation value of this plant formation. This result could be used for the establishment of a classified forest in Bagoué Region of Côte d’Ivoire.

scholarly journals Diversité végétale et usages des plantes dans une zone de savane soudanienne : Cas de la localité de Ferkessédougou (Nord, Côte d'Ivoire)

2020 ◽  
Vol 14 (8) ◽  
pp. 2807-2825
Author(s):  
Abdoulaye Cisse ◽  
Mevanly Ouattara ◽  
Estelle Anny N’guessan ◽  
Joël Emmanuel N’Gouan Abrou
Keyword(s):  
Plant Diversity ◽  
Cote D'ivoire ◽  
Ivory Coast ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
The North ◽  
Côte D'ivoire ◽  
Plant Uses ◽  
Key Indicators ◽  
Open Forests

En Côte d’Ivoire, principalement dans le nord, on observe la présence de plusieurs formations végétales très variées allant des forêts claires et aux différents faciès de savanes. Dans la localité de Ferkessédougou, une étude a été menée dans le but de connaître la flore, la végétation et de l’usage des plantes. Cette étude a permis de recenser 192 espèces de végétales. Elles se répartissent en 148 genres et 64 familles. Parmi ces espèces, certaines ont été identifiées comme alimentaires, médicinales ou à divers autres usages. Aussi, vingt sont considérées comme des espèces ayant un statut particulier et qui nécessite une attention particulière en vue de leur protection ainsi que les habitats où elles se rencontrent. La présence de ces espèces peut constituer des indicateurs clés pour le suivi environnemental de la zone d’étude.Mots clés : Diversité végétale, Services écosystémiques, savane soudanienne, Ferkessédougou, Côte d’Ivoire.   English Title: Plant diversity and plant uses in a Sudanese savannah area: Case of the locality of Ferkessédougou (North, Côte d'Ivoire)In Ivory Coast, mainly in the north, we observe the presence of several very varied plant vegetations anging from open forests to different facies of savannah. In the locality of Ferkessédougou, a study was carried out to learn about the flora, vegetation and the use of plants. This study identified 192 species of plants. They are divided into 148 genera and 64 families. Among these species, some have been identified as food, medicinal or various other uses. Also, twenty are considered to be species with a special status and which requires very special attention for their protection as well as the habitats where they occur. The presence of these species can constitute key indicators for the environmental monitoring of the study area. Keywords: Plant diversity, Ecosystem services, Sudanese savannah, Ferkessédougou, Ivory Coast.

scholarly journals Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Côte d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program

2020 ◽  
Vol 20 (9) ◽  
pp. 5327-5354 ◽  
Author(s):  
Aka Jacques Adon ◽  
Catherine Liousse ◽  
Elhadji Thierno Doumbia ◽  
Armelle Baeza-Squiban ◽  
Hélène Cachier ◽  
...  
Keyword(s):  
Organic Carbon ◽  
West Africa ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Dry Season ◽  
Water Soluble ◽  
Wet Season ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Combustion Sources

Abstract. Urban air pollution in West Africa has yet to be well characterized. In the frame of DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa) program, intensive measurement campaigns were performed in Abidjan (Côte d'Ivoire) and Cotonou (Benin), in dry (January 2016 and 2017) and wet (July 2015 and 2016) seasons, at different sites chosen to be representative of African urban combustion sources, i.e., domestic fires (ADF), traffic (AT) and waste burning (AWB) sources in Abidjan and traffic source in Cotonou (CT). Both the size distribution of particulate matter (PM) and their chemical composition including elemental carbon (EC), organic carbon (OC), water-soluble organic carbon (WSOC), water-soluble inorganic ions (WSI) and trace metals were examined. Results show very high PM concentrations at all sites and a well-marked seasonality as well as a strong spatial variation. The average PM2.5 mass concentrations during the wet season are 517.3, 104.1, 90.3, and 69.1 µg m−3 at the ADF, CT, AT, and AWB sites, respectively. In the dry season, PM2.5 concentrations decrease to 375.7 µg m−3 at the ADF site, while they increase to 269.7, 141.3, and 175.3 µg m−3 at the CT, AT, and AWB sites, respectively. The annual PM2.5 levels at almost all sites are significantly higher than the WHO guideline level of 10 µg m−3. As for PM mass, (EC) and (OC) concentrations are also maximal at the ADF site, accounting for up to 69 % of the total PM mass. Such a high content is mainly linked to wood burning for domestic cooking and commercial food smoking activities. Dust contributions are dominant at CT (57 %–80 %), AT (20 %–70 %), and AWB (30 %–69 %) sites and especially in the coarse and fine-particle modes at the CT site and in the coarse fraction at the AT site, which may be explained by the impact of long-range desert-dust transport and resuspended particles from the roads, in addition to anthropogenic sources. The contributions of WSI to the total PM mass, mainly driven by chloride, nitrate, and calcium in the fine and/or large particles, are highly variable according to the sites but remain less than 30 %. Values are generally 1–3 times higher in the wet season than in the dry season. This is due not only to anthropogenic emissions but also to nitrate formation by reaction processes and natural emissions. The concentrations of trace elements reflect well the trends in dust at the traffic and AWB sites, with a predominance of Al, Na, Ca, Fe, and K, keys markers of crustal dust. This study constitutes an original database that characterizes specific African combustion sources.

scholarly journals Characterization of the physicochemical properties of sweet pepper (Capsicum annuum) cultivated in Korhogo in the North of Côte d’Ivoire

2021 ◽  
Vol 8 (3) ◽  
pp. 130-138
Author(s):  
Michel Arthur Niamke ◽  
Soronikpoho Soro ◽  
Bernard Tehi Sea ◽  
Jaures Elidje Atchowo ◽  
Joseph Allico Djaman
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Local Population ◽  
Titratable Acidity ◽  
Sweet Pepper ◽  
Mineral Elements ◽  
Cote D’Ivoire ◽  
The North ◽  
Côte D'ivoire ◽  
Nutritional Compounds

Sweet peppers are consumed less in Korhogo, in the north of Côte d'Ivoire, than other hotter peppers. In addition, the sweet pepper is underexploited, it encounters problems of conservation, distribution. This study is a valorization of the sweet pepper. The physical properties are: 5.8-6.93 cm for length, 14.21-15.03 cm for circumference, 34.28-42.65 g for weight, 91.19-91.80 % for humidity, 0.49-0.61 % for ash content. The contents of biochemical elements are: 5.42-5.54 for the pH, 2.92 meq / 100 g on average for the titratable acidity, 177.45-254.57 mg / 100g for reducing sugars, 3,42-4.29 % for total sugars, 0.36 % on average for lipids, 0.73-1 % for proteins, 2.03-3 % for fibers, 6.62-6.93 % for total carbohydrates, 32.64-34.7 Kcal / 100 g for energy value. The amounts of vitamin C, polyphenols, flavonoids, tannins are respectively: 26.67-51.25 mg / 100 g; 116.16-131.28 mg / 100 g; 1.97-4.43 mg / 100 g; 14.74-19.12 mg / 100 g. The contents of anti-nutritional compounds are 363-388.67 mg / 100 g for oxalates, 20.08-22.20 mg / 100 g for phytates. Sweet pepper contains 0.14 % DM on average phosphorus, 0.33-0.37 % DM for potassium, 0.30-0.31 % DM for calcium, 0.167-0.174 % DM for magnesium, 2.76 -3.80 ppm copper, 7.5-7.92 ppm iron, 0.59-0.69 ppm manganese, 16.24-16.34 ppm zinc, 6.46-20.15 ppm sodium. Processed before consumption, Sweet pepper constitutes a significant source of food fibre, natural antioxidant, and mineral elements for local population.

scholarly journals Signature Geochimique des Granitoides de la Branche Est du Sillon de Boundiali-Korhogo (Nord de la Cote D’ivoire)

2021 ◽  
Vol 17 (34) ◽  
pp. 223
Author(s):  
Fofana Krohognon ◽  
Allialy Marc Ephrem ◽  
Coulibaly Inza ◽  
Teha Koffi Raoul
Keyword(s):  
Cote D'ivoire ◽  
Greenstone Belt ◽  
Côte D’Ivoire ◽  
Major And Trace Elements ◽  
Primitive Mantle ◽  
Type I ◽  
Cote D’Ivoire ◽  
The North ◽  
Côte D'ivoire ◽  
Set Up

Cet article résume les données relatives à la pétrographie et aux compositions en éléments majeurs et en traces des granitoïdes du sillon de Korhogo. Le sillon de Korhogo est situé au Nord de la Côte d’Ivoire, dans le domaine birimien. Ce sillon qui constitue la branche Est du sillon de Boundiali-Korhogo est à cheval sur les régions du Poro et du Tchologo. La méthodologie employée a permis à l’issue des observations macroscopiques, de recueillir des échantillons pour les études microscopiques et géochimiques. Les études pétrographiques indiquent que les granitoïdes du sillon de Korhogo sont des granodiorites et granites. Ces granitoïdes ont été affectés par une intense altération pervasive et fissurale témoignant ainsi de l’intensité de l’altération hydrothermale dans le sillon de Korhogo. Ces roches ont été affectées par un le métamorphisme de faciès schiste vert. Les données géochimiques montrent que les granitoïdes sont calco-alcalins, potassiques, métalumineux à peralumineux et de Type « I ». Ces roches sont enrichies en LREE [Granodiorite ((La/Sm)N = 3,36 – 4,45 ; (Gd/Yb)N = 1,56 – 2,51 ; et (La/Yb)N = 7,29 – 20,92) ; Granite ((La/Sm)N = 4,51 - 4,69 ; (Gd/Yb)N = 1,00– 3,13 et (La/Yb)N = 7,63 - 26,53] et présentent des anomalies négatives à quasiment nulles en cérium [Granite (Ce/Ce*= 0,60 -0,92) ; Granodiorite (Ce/Ce* = 0,80 -1,01)]. Les anomalies en europium varient des granodiorites [(Eu/Eu* = 0,81 – 1,53)] aux granites [(Eu/Eu*= 0,90 - 1,11)]. Ces granitoïdes ont de faibles taux de TiO2 (<2 %). Les arachnogrammes des éléments en trace normalisés au manteau primitif sont généralement enrichis en LILE (Cs, Ba, Rb, K) associés à une anomalie négative en Nb-Ta. Les tendances géochimiques indiquent que les granitoïdes du sillon de Korhogo proviendraient d’un mélange crustal et mantellique et se seraient mis en place dans un contexte de subduction. This paper summarizes the data available on petrography and the concentrations of major and trace elements in granitoids from Korhogo greenstone belt province. The Korhogo greenstone belt is localed in the north of Côte d’Ivoire, in the birimian domain. This belt which constitutes the eastern branch of the Boundiali-Korhogo greenstone belt straddles the Poro and Tchologo areas. The methodology started by the macroscopic to microscopic observations then it continued to the geochemical studies. Petrographic studies indicate that the granitoids of Korhogo greenstone belt are granodiorites and granites. These granitoids were affected by intense pervasive and fissural alteration thus testifying the intensity of hydrothermal alteration in the Korhogo greenstone belt. These rocks were affected by regional greenschist facies. Geochemical datas show that the granitoids are calc-alkaline, potassic, metaluminous to peraluminous and “I” Type. These rocks are enriched in LREE [Granodiorite (La/Sm)N = 3,36 – 4,45 ; (Gd/Yb)N = 1,56 – 2,51 ; et (La/Yb)N = 7,29 – 20,92) ; Granite (La/Sm)N = 4,51 - 4,69 ; (Gd/Yb)N = 1,00 – 3,13 et (La/Yb)N = 7,63 - 26,53] and present negative to non-exixting cerium anomalies [Granite (Ce / Ce * = 0.60 -0.92); Granodiorite (Ce/Ce * = 0.80 -1.01)]. The europium anomalies vary from granodiorites [(Eu/Eu * = 0.81 - 1.53)] to granites [(Eu/ Eu * = 0.90 - 1.11)]. These granitoids have low levels of TiO2 (<2%). Primitive mantle normalized, trace element patterns show that granitoids have geochemical patterns characterized by enrichment in LILE (Cs, Ba, Rb, K) associated with negative Nb –Ta anomalies. Geochemical trends indicate that the granitoids of Korhogo greenstone belt originate from a crustal and mantle mixture and were set up in a context of subduction.

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