Author(s) :

Kadimba Ilunga Marcel, Kapend Yrung Eddy, Kalokola Yangonde Julien.

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This work does not set in motion magical solutions but the objective is to make scientific analyses on the strategies that can enlighten and give the right understanding of the situation in the East, in order to deduce thoughtful actions to put an end to this tragedy that has lasted too long and if not stopped, risks to set the whole country ablaze and threaten for sure, the regional and international security. It is also necessary to question the political leadership that is supposed to see clearly the security of the population in every inch of the national territory. Women are raped, men and children are killed and molested. This war brings the development of the Drcongo to its knees. Experience has shown that there is no economic growth in a conflict environment. The question is, why does this misadventure in the East continue? And specifically, what are the solutions to end this war drastically? it is to be noted that, overall, it all depends on how the leaders handle the issue of this infernal cycle of violence. And specifically, the insufficiency or lack of quality political leadership capable of silencing these weapons. The expected outcome of these papers is to provide solutions that can help the Drcongo turn the page on this war and move relentlessly down the path of developing the Drcongo in general and the East in particular. The method of the immediate history constitutes a means that brings this analysis to the results since it orients the study in front of the facts with a diachronic and synchronic approach.

No. of Downloads :

22

Author(s) :

Koto-Te-Nyiwa Jean-Paul Ngbolua, Ruphin Djolu Djoza, Colette Masengo Ashande, Pamphile Mbenga Kele, Monizi Mawunu, Robijaona Rahelivololoniaina Baholy, Pius Mpiana Tshimankinda.

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The aim of this study was to inventory the medicinal plants used in the Ebola River basin in the Democratic Republic of Congo. The majority (81.8%) of respondents were men (vs. 18.2% of women). The majority (52.9%) of respondents had secondary education; 29.8% had primary education and almost 1.0% (0.8%) had university education. 41.3% of the respondents are between 31-45 years of age; 29.8% of the respondents are between 18-30 years of age, 25.6% are over 45 years of age and 3.3% of the respondents are under 18 years of age. 82.6% of the respondents are married, while 17.4% are single. For 48.8% of respondents, the household size is 5-10 persons. 38.0% have a household size of less than 5 persons, 8.3% of households have between 11-15 persons and 5.0% of households have more than 15 persons. 32 plant species (of which five have not yet been identified) have been recorded and belong to 26 genera and 19 families. The main parts used are the leaf (40.6%) and the root (31.3%). 96.9% of respondents use the drug in a fresh state, while only 3.1% use it in a dry state. General pain, sexual weakness, back pain and tooth decay are the main illnesses treated by these medicinal plants. 90.6% of the respondents believe that the patients get better after the treatment. Apart from their medicinal role, the plants inventoried are also used in the area as fuel wood or timber. The identification of forest resources as well as their valorization and protection is becoming an imperative duty in North Ubangi in order to contribute to its sustainable development strategies.

No. of Downloads :

38

Author(s) :

Koto-Te-Nyiwa Jean-Paul Ngbolua, Emmanuel Lengbiye Moke, Colette Masengo Ashande, Monizi Mawunu, Clément Inkoto Liyongo, Félicien Mushagalusha Kasali, Robijaona Rahelivololoniaina Baholy, Dorothée Tshilanda Dinangayi, Damien Tshibangu Sha-Tshibey, Pius Mpiana Tshimankinda.

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An ethnobotanical survey was conducted among traditional healers and herbalists in eastern Kinshasa (Democratic Republic of the Congo) to identify medicinal plant species traditionally used to treat diabetes mellitus. Fifty traditional healers and herbalists selected through the snowball sampling method were interviewed about plant species used in indigenous medicine to treat diabetes mellitus in Kinshasa city. Cited plant taxa were collected and identified at the Herbarium of the Faculty of Science & Technology, University of Kinshasa. Their ecological status was determined. Most respondents were male (58%), with a sex ratio 1.38. According to the marital status of respondents, single persons represent 42%, followed by married (32%), divorced (20%), and widowed (06%), respectively. Out of 50 persons interviewed, the most represented age group comprises individuals of ˃50 years. Most informants have a secondary school educational background (46%). In Kinshasa city, medicinal plants for treating diabetes mellitus are divided into 19 families, 25 genera, and 27 species. The culture/crop and forest plant species represent the most (37.04% each). The ecological and phytogeographical spectra revealed a predominance of trees (33.33%), microphanerophytes (48.15%), mesophytes (85.19%), sarcochores (66.67%), and pantropical species (40.74%). 68% of the population of Tshangu district in Kinshasa city uses Traditional Medicine, against 32% who are interested in modern medicine. 63% of them believe that medicinal plants can cure diabetes, 31.5% believe that plants improve their health, and 15% of the population surveyed believe that medicinal plants have side effects. The leaves are the most used part (40.74%), followed by the roots (25.93), fruits (18.52%), grains (7.41%), flowers, and stems (3.7% each). Promoting ex-situ conservation of some of these useful medicinal plants through in vitro cell culture will permit the preservation of these phyto-resources.

No. of Downloads :

45

Author(s) :

Ngindu Buabua David, Tondozi Keto Franck, Mambu Tshipasi Fils.

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In this study we will examine the evolution of the Upemba Rift in relationship to the tectonics of the region and conclude on the fault alignments in the Rift. The methods used for this study include remote sensing and processing by Geographic Information System, using ArcGIS 10.8 software. As results, the Upemba Rift, compared to the tectonics of this region, does not consist of a single fault in a straight segment but it is composed of two compound normal faults located on either side of the Rift in the depression delimited by some lakes. Hence, the Upemba Rift is considered as an aborted rift because its extension movement stopped several years ago.

No. of Downloads :

40

Author(s) :

Jean Christian Bangata Bitha nyi Mbunzu, Syntyche Bitha Gende, Francklin Ngwibaba Ansuele, Patrick Ngbenelo Ngbengbu, Patrick Mobambo Kitume Ngongo.

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La sécurité alimentaire en Afrique est soumise à de nombreuses incertitudes au regard des statistiques actuelles qui révèlent une dégradation de la productivité pour les plantes vivrières locales notamment le manioc, le maïs, le plantain, etc. Avec une production globale de 8 millions de tonnes en Afrique centrale et de l‟Ouest, les bananiers ont une place centrale dans la réalisation de la sécurité alimentaire régionale et particulièrement celle de certaines villes. C‟est dans cette optique que ce travail vise la promotion de la culture de bananiers par : une brève présentation de culture et une analyse de différentes techniques de cette culture dans les différentes zones de production en RDC. Les résultats obtenus suivant la méthode documentaire révèlent que la culture de bananiers est très répandue en RDC, surtout dans les zones forestières et dans les savanes où les paysans continuent à employer les méthodes traditionnelles de production. Du point de vue systèmes de culture pratiqués en zone montagneuse de l‟Est du pays, les bananiers sont cultivés presque par toutes les familles sous plusieurs systèmes entre autres, les cultures de case, en champs par association ou en monoculture… A l‟Ouest, les bananiers sont particulièrement importants dans les zones forestières où ils constituent le système « sylvo-bananier », tandis que dans les zones de savane, ils constituent une culture de case. Les principales contraintes identifiées sont le manque de matériel de propagation amélioré, la non maitrise des pratiques culturales, les maladies et ravageurs, la pauvreté des sols, etc. Mots-clés : Aperçu, Systèmes culturales, production, sylvo-bananier, RDC. Food security in Africa is subject to many uncertainties, with current statistics revealing deterioration in productivity for local food crops such as cassava, maize and plantain. With an overall production of 8 million tonnes in Central and West Africa, bananas play a central role in achieving regional food security, particularly in certain cities. With this in mind, this study aims to promote the cultivation of bananas by means of a brief presentation of the crop and an analysis of the various banana-growing techniques used in the various production zones of the DRC. The results obtained using the documentary method reveal that banana cultivation is widespread in the DRC, especially in forest and savannah areas where farmers continue to employ traditional production methods. From the point of view of cropping systems in the mountainous eastern part of the country, bananas are grown by almost all families under a variety of systems, including hut cultivation, intercropping or monocropping... In the west, bananas are particularly important in forest areas, where they make up the "sylvo-banana" system, while in savannah areas; they are grown as a hut crop. The main constraints identified are the lack of improved propagation material, poor cultivation practices, diseases and pests, poor soils, etc. Keywords: Overview, Cropping systems, production, sylvo-banana, DRC.

No. of Downloads :

36

Author(s) :

Zana Lambadi Aimé, Mukala Kalambaie Alphonse Claude, Manzuma Mpukuta Bienvenu, Lumpungu Lutumba Kevin, Mabiala Ma Diambu Georges Christian, Mpia Ntab Rem Jean Armand, Tondozi Keto Franck, Therrien René.

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Le volcanisme est l’un des phénomènes naturels terrestres dont l’impact dans l’environnement est très remarquable. Rappelons que le volcanisme de la zone du Virunga, dans la province du Nord-Kivu en RD Congo trouve son origine dans le mécanisme de formation des crêtes médio-océaniques serpentant au milieu des océans Atlantique et Indien avec une extension dans la partie orientale du continent africain. Par ailleurs, le volcanisme du Virunga est particulier en ce qui concerne sa concentration de grands édifices volcaniques sur une zone assez réduite, de fréquences élevées des épisodes éruptives et activités quasi-permanente dans les lacs de laves. La particularité du volcanisme du Virunga génère, plus que pour les autres volcans, une gamme plus diversifiée d’impacts environnementaux. La mise en évidence de ces impacts nous a conduit à formuler quelques mesures en amont de ces éruptions dans le but d’en atténuer les conséquences afin d’amener les populations locales à s’adapter à vivre avec les volcans. Mots clés: Impacts environnementaux, volcanisme, volcan, Virunga, Nord Kivu The purpose of this study is to analyze the prevalence; the impact on performance and the stress-generating problems among Volcanism is one of the terrestrial phenomena naturel whose impact on the environment of our planet is more remarkable. Let us recall that volcanism in the Virunga area, in the province of North Kivu in DR Congo, has its origin in the mechanism of formation of mid-oceanic ridges meandering in the middle of the Atlantic and Indian Oceans with an extension in the eastern part of the African continent. Virunga volcanism is peculiar in three aspects: concentration of large volcanic edifices on a fairly small area; high frequency of eruptive episodes and quasi-permanent lava lake activity. The peculiarity of Virunga volcanism must generate, more than for other volcanoes, a more diversified range of environmental impacts that we have identified in a non-exhaustive way below, following the lack of field investigations. The identification of these impacts has led us to formulate some measures upstream of these eruptions in order to mitigate the consequences of these eruptions and to encourage local populations to adapt to living with volcanoes. Keywords: Environnemental impacts, vocalnism, volcanoes, Virunga, North Kivu.

No. of Downloads :

20

Author(s) :

Jean Pierre Mbula, Giresse Kasiama Nkal, Aristote Matondo, Juvenal Bete, Koto-Te-Nyiwa , Jean Paul Ngbolua, Dorothée Tshilanda Dinangayi, Damien Tshibangu Sha-Tshibey, Pius Mpiana Tshimankinda.

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L'objectif de ce travail est de passer en révue les données de la littérature rapportées sur l’espèce Eucalyptus globulus concernant sa phytochimie et ses activités afin de montrer comment l’espèce Eucalyptus globulus peut être utilisées dans le traitement des plusieures maladies. Une étude antérieure a montré que divers composés ont été extraits de cette espèce, il s’agit notamment de 1,8-cinéole (48.6%), α-pinène (9,7%), globulol, Aromadendrène; isovaléraldéhyde, spathulénol, Isoamyisovalerate (1,1%), trans-Carveol (0,8%), Carvacrol (0,1%), α -Terpinyl acetate (0,3%), Geranyl acetate (0,1%), Aromadendrène (4,6%), Ledene (0,6%),Viridiflorol (0,4%),Globulol (10,9%), α –Eudesmol (0,8%),Juriper Camphor (0,6%), etc… Une revue de la littérature révèle que l’espèce E. globulus et leurs huiles essentielles sont actives contre un grand nombre de virus et même contre le SARS-CoV-1 qui partage 96% des gènes avec le SARS-CoV-2. Les études ont aussi montré que cette plante est douée des plusieurs activités biologiques (antivirale, anti-oxydante, antibactérienne, insecticide, acaricide, antipaludique et antifongique).

No. of Downloads :

44

Author(s) :

Jean Christian Bangata Bitha Nyi Mbunzu, Patrick Mobambo Kitume Ngongo, Francklin Ngwibaba Ansuele.

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Le but de cette étude est d’améliorer la production des bananes par l’approche sylvo-bananière. Spécifiquement, cette étude vise à évaluer l’impact de l’association bananiers-Arbres forestiers sur le comportement de cultivars de bananier au deuxième cycle de production. Cinq cultivars de bananiers étaient associés, en culture intercalaire, avec les essences forestières arborescentes non légumineuses (EFANL) suivant un dispositif factoriel. Après avoir récolté la production du premier du premier cycle, les pieds reproducteurs ont été retirés pour laisser la place aux rejets successeurs; Et l’évaluation du comportement de ces derniers a fait l’objet de cette étude. Il se dégage de résultats obtenus que le cultivar Nsikumuna se soit révélé plus performant en association avec les essences forestières arborescentes. Le cultivar Bubi s’est par contre révélé moins performant. Quant aux EFANL sélectionnées, Maesopsis eminii Engl. reste l’espèce qui s’est démarquée. Et cela parce qu’elle a influencé positivement la croissance et production des cultivars de bananiers de plus que toutes les autres. Des études ultérieures sont souhaitables en vue d’évaluer la durabilité d’une exploitation sylvo-bananière basée sur les cultivars Nsikumuna et Ndongila avec Maesopsis eminii Engl. comme essence forestière. The aim of this study is to improve banana production through the sylvo-banana approach. Specifically, this study aims to evaluate the impact of the banana-tree association on the behavior of banana cultivars in the second production cycle. Five banana cultivars were intercropped with non-leguminous tree species (NLFS) in a factorial design. After harvesting the production of the first of the first cycle, the reproductive plants were removed to make room for the successor shoots; and the evaluation of the behavior of the latter was the object of this study. The results show that the cultivar Nsikumuna performed better in association with tree species. The cultivar Bubi, on the other hand, performed less well. As for the selected EFANL, Maesopsis eminii Engl. was the species that stood out. This is because it positively influenced the growth and production of the banana cultivars more than any other. Further studies are desirable to evaluate the sustainability of a silvo-banana exploitation based on Nsikumuna and Ndongila cultivars with Maesopsis eminii Engl. as forest species.

No. of Downloads :

15