Sols favorables à la cacaoculture au centre-ouest de la Côte d’Ivoire dans un contexte d’assèchement climatique

Kassin, KE; Koko, L.K.; N'goran, KE; Yao-Kouamé, Albert; Yoro, GR

doi:10.4314/ijbcs.v6i3.20

Cited by 7 publications

(9 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plinthosols occupied 5% of the total area of the system. This soil type, although not included in the map drawn by Bertault [24], was described in the central west of Côte d'Ivoire, at the top of the slopes [27], which corroborated our results. In international classifications, Plinthosols corresponded to Petroferric (FAO 1974 classification) or low-active clay soils according to the IPCC [3].…”

Section: Ferralsols and Plinthosols At The Top Slopessupporting

confidence: 91%

Soil organic carbon stock under semi-deciduous tropical forests: case of the Téné protected forest (Oumé, Côte d'Ivoire)

KOFFI¹,

ZO-BI²,

KOUAME³

et al. 2023

World J. Adv. Res. Rev.

View full text Add to dashboard Cite

Soil organic carbon stocks (SOCS) estimated from international databases are generally subject to uncertainties. These errors are more significant in developing countries where field studies are rare. To overcome this shortcoming, soil samples were collected in the experimental set-up of Téné protected forest (ES-TPF), located in central-western Côte d'Ivoire, to identify the soil types and the corresponding actual SOCS. The FAO soil classification guide was used to identify soil types. SOCS were determined from the carbon concentrations, bulk densities, and proportions of fine elements, in 0-30 cm, 30-60 cm and 60-100 cm thicknesses. The results showed three soil types, namely Plinthosols at top slope, Ferralsols at top and middle slope and Fluvisols at bottom slope. In the reference thicknesses 0-30 cm and 0-100 cm, the respective SOCS are on average 44.89±25% tC.ha-1 and 61.56±23% tC.ha-1 in Plinthosols; 49.16±26% tC.ha-1 and 93.40±16% tC.ha-1 in Ferralsols; 41.18±32% tC.ha-1 and 68.54±22% tC.ha-1 in Fluvisols. Almost all these values differed from those in the international databases, especially in the depths. Therefore, the results obtained are recommended for a better accounting and management of SOCS in the semi-deciduous tropical forests of West Africa.

show abstract

Section: Ferralsols and Plinthosols At The Top Slopessupporting

confidence: 91%

Soil organic carbon stock under semi-deciduous tropical forests: case of the Téné protected forest (Oumé, Côte d'Ivoire)

KOFFI¹,

ZO-BI²,

KOUAME³

et al. 2023

World J. Adv. Res. Rev.

View full text Add to dashboard Cite

show abstract

“…The soils studied in the high and medium slopes are poorly drained, characterised by the presence of hydromorphy, which is a parameter of cocoa tree degradation, as underlined by [6] who noted it in the Centre-West of Côte d'Ivoire on the same topographic positions. In fact, the cocoa tree is very sensitive to prolonged excess water, causing redox phenomena, a source of asphyxiation [30].…”

Section: Discussionmentioning

confidence: 88%

“…However, for some years now, the actors in this sector have been confronted with the scarcity of cultivable land and have rushed to buy any piece of land they could find without really taking into account the suitability of the soil for cocoa farming. It is accepted that the choice of soil is decisive from a physical, chemical and physico-chemical point of view, not only for the success of replanting, but also and above all for the sustainability of the farms [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

Physico-chemical Quality of Soils under Cocoa Farm in Koffikro-Affema (Aboisso) in South-East of Côte d'Ivoire

Kouakou

Trazié

Yao-Kouamé

2021

EJFOOD

View full text Add to dashboard Cite

The study was conducted in Koffikro-Affema village located in the South-East of Côte d'Ivoire to assess the morpho-physical and chemical quality of soils under cocoa farm, for the management of early degradation of orchards. Representative soil samples were taken by horizon under degraded cocoa farms after a morpho-pedological characterisation. These samples were then analysed in the laboratory for fertility parameters. The results indicate that the cocoa farms have a high rate of degradation and the study made it possible to identify the soil characteristics associated not only with the degradation of cocoa trees, but also with the drop in yield. These are the rate of coarse grains greater than 50%, the low organic matter content (less than 3.5%), a very slow rate of mineralisation (C/N > 12), poor internal drainage and the acidic pH of the soil (4.4-5.5). The soils surveyed are highly desaturated to moderately saturated and the main characteristics of the absorbing complex indicate that they are unfavourable for cocoa. Indeed, these soils are deficient in K+ (<0.2 cmol/kg), Ca2+ (between 5.1 and 11.41 cmol/Kg) and assimilable Nitrogen (˂0.2 cmol/Kg). Similarly, the Mg2+/K+ ratio of less than 3 shows that they are magnesium deficient. The results also revealed an influence of the topographical position on the degradation of cocoa trees with, on the upper and middle slopes, strongly gravelly and poorly drained horizons, associated with the degradation of cocoa trees. On the other hand, on the lower slopes, these soils are deep, not gravelly, with good growth of cocoa trees and low yields.

show abstract

“…In Cote d'Ivoire, the seasonal changes in cocoa yields due to the variations in local meteorological conditions, particularly precipitation and temperature, have motivated many studies [15] [16] [27]- [31] to raise awareness of the risks of productivity losses but most of the adoption of different strategies for adapting to new climatic conditions. In addition, the conclusions of the work of [16] highlighted the need to take into account climatic parameters whose variations have more impact on cocoa yields since from one region considered to another, the analyses have shown different impacts.…”

Section: Discussionmentioning

confidence: 99%

“…But this region is subject to the variable effects of the changes in climate due to the inconstancy of both rainfall and temperature. For example, in the last few years, the western centre region experienced a poor cocoa yield mostly due to climate change [15]. This study assesses the influence of precipitation and temperature trends on the cocoa production, in three main regions (Goh, Haut-Sassandra, and Marahoué) of Côte d'Ivoire.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Impacts of Climate Variability on Cocoa Production in the Western Centre of Cote d’Ivoire during 1979-2010

Yoroba¹,

Kouadio²,

Kouassi³

et al. 2023

ACS

View full text Add to dashboard Cite

Climate variability impacts on cocoa production are evaluated for the first time using 31 years of data from SODEXAM (climate groundbased observations) and the ex-CAISTAB in three main cocoa production regions (Goh, Marahoué, and Haut-Sassandra) in the west-central part of Cote d'Ivoire. The work is a contribution to improving the quality of climate services dedicated to cocoa cultivation to ensure producers' income and improve the yield of the production in the west-central part of Cote d'Ivoire. The results show that cocoa production is affected by the changes and variability in climate conditions (i.e. rainfall and temperature). In the Goh region, the increase in cocoa production seems to be mostly related to the augmentation of rainfall amount while in Marahoué, the increase in temperature is identified to have a more significant impact. Over the Haut-Sassandra region, both temperature and rainfall seem to have a considerable effect on the changes in cocoa production. The analysis based on linear regression by least-squares fit shows two characteristic modes (low and high-frequency variability) in the relationships between cocoa production and meteorological conditions suggesting a strong temporal signal impact related to the changes in the emblazoned surfaces. This leads to an important impact of the short-term variations of climate in cocoa production whereas, the influence of the long-term variability in climate on the cocoa yield seems marginal.

show abstract

Sols favorables à la cacaoculture au centre-ouest de la Côte d’Ivoire dans un contexte d’assèchement climatique

Cited by 7 publications

References 1 publication

Soil organic carbon stock under semi-deciduous tropical forests: case of the Téné protected forest (Oumé, Côte d'Ivoire)

Soil organic carbon stock under semi-deciduous tropical forests: case of the Téné protected forest (Oumé, Côte d'Ivoire)

Physico-chemical Quality of Soils under Cocoa Farm in Koffikro-Affema (Aboisso) in South-East of Côte d'Ivoire

Evaluating the Impacts of Climate Variability on Cocoa Production in the Western Centre of Cote d’Ivoire during 1979-2010

Contact Info

Product

Resources

About