La question de la vulnérabilité et de l'adaptation de l'agriculture sahélienne au climat au sein du programme AMMA

Sultan, Benjamin; Alhassane, Agali; Barbier, Bruno; Baron, Christian; Tsogo, Marthe Bella-Medjo; Berg, Alexis; Dingkuhn, Michaël; Fortilus, Jeanne; Kouressy, Mamoutou; Leblois, Antoine; Marteau, Romain; Muller, Bertrand; Oettli, Pascal; Quirion, Philippe; Roudier, Philippe; Traoré, Seydou; Vaksmann, Michel

doi:10.4267/2042/48134

Cited by 8 publications

(7 citation statements)

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“…These include: (i) agronomic modeling which is a tool for quantifying the link between climate and agriculture. it is a model that can be used to transcribe climate information for example temperature and/or precipitation in terms of agronomic variables such as agricultural yields, biomass in order to synthesize existing knowledge about climate and plant relationships (Sultan, 2012); (ii) empirical modeling consists in constructing a link between dependent variables (eg performance) and explanatory variables without explicitly representing the agronomic mechanisms (Sultan, 2012(Sultan, , 2011. It is a method for modeling the effects of meteorology and climate on crops and consists in making direct statistical comparisons between meteorological and climatic elements and actual yields (Roberts and al., 2012); (iii) the Ricardian approach developed by Mendelsohn and al.…”

Section: 1 Econometric Modelmentioning

confidence: 99%

Impact of Climate Change on Cereal Production in Burkina Faso

Nana¹

2019

JAES

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With the increase of greenhouse effect gas emissions, caused by human activities, climate change impacts on environment and economic activities, especially agriculture in developing countries, remain currently an international concern. In Burkina Faso, the share of the agriculture sector to the real GDP is the largest historically and represented 44% in 2016. Furthermore, this sector remains heavily dependent on climatic conditions. With regard importance to these facts, the objective of the present study is to analyze the vulnerability of the agricultural sector, mainly the production of maize, millet, sorghum and rice in Burkina Faso to the effects of climate change. To test the hypothesis whether "climate variables, such as rainfall and temperature have a positive impact on cereal production," a linear model was estimated by the stepwise method on panel data. The results show that increased precipitation would result in an increased production of maize, millet and sorghum and decreased that of rice. While an increase in temperature contributes to a decrease of the latter. Thus, the impact of climate change on agriculture is real in Burkina Faso and the adoption of effective adaptation and mitigation is of great importance.

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Section: 1 Econometric Modelmentioning

confidence: 99%

Impact of Climate Change on Cereal Production in Burkina Faso

Nana¹

2019

JAES

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“…Also, the agricultural system that prevails in most African countries remains rain-fed, therefore highly depend on climatic conditions [10]. It explains the relatively high sensitivity of the agricultural sector to climate change [11].…”

Section: Introductionmentioning

confidence: 99%

Impact of Climate Change on Cereal Yield and Production in the Sahel: Case of Burkina Faso

Sossou

Igue

Diallo

2020

AJAEES

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Climate change is one of the biggest challenges of the 21st century. It affects all countries in the world, especially Sahelian countries in Africa. This paper aimed at evaluating the impact of climate change on cereal yield in Burkina Faso. The ordinary least squares (OLS) was applied to time-series data from 1991 to 2016 collected on the World Bank website. The results have shown that temperature adversely affects yield and cereal production, while precipitation has positive effect. An increase in rainfall of 1 millimetre would increase cereal production by 385 tons in the long term and 252 tons in the short term. In the same, an increase in rainfall of 1 millimetre would increase agricultural yield by 9 kg per hectare in the long term. However, in the short term, an increase in temperatures of 1ºC would result in a decrease in cereal production and agricultural yield of 134748 tons and 72 kg per hectare, respectively. However, in the long term, a rise in temperatures of 1ºC would result in a decrease in cereal production and cereal yield of 154 634 tons and 1074 kg per hectare, respectively. Besides, the results indicate that the emission of carbon dioxide (CO2) has no significant effect on yield and cereal production. Implementing effective adaptation strategies, such as access to improved seed, introduce smart agriculture in the system of cereal in Burkina Faso and increasing irrigation infrastructure could reduce the cereal production's vulnerability to climate shocks.

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“…For this part of the population, agriculture is the main source of livelihood [7]. In West Africa in particular, the agricultural sector plays a decisive role in terms of national economies, employment, income of rural households, the balance of the trade balance and the food security of the population [8]. This agriculture contributes about 35% of gross domestic product (GDP) in West Africa [7].…”

Section: Introductionmentioning

confidence: 99%

“…This agriculture contributes about 35% of gross domestic product (GDP) in West Africa [7]. In the current context of climate change, without appropriate adaptation measures, this agriculture, already threatened by rapid population growth and reduced access to technological change [8] is likely to increase in fragility. [9], in their work, also concluded that in the face of the pronounced climatic variations experienced by West Africa since the 1970s, adaptation methods are appeared to be the only alternatives for reducing the vulnerability of rural populations [9].…”

Section: Introductionmentioning

confidence: 99%

Dynamics Simulation of Radial Flow Water in Aerial Roots of Corn by Deposit of Dew in Atmosphere Aerial Roots Continuum

Yessoufou¹,

Médéhouénou²,

N’Gobi

et al. 2020

AJOPACS

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Maize plants have different aerial roots from those that serve as an anchor and develop on the stem and live in the atmosphere. Much literature has reported that aerial roots are able to absorb moisture from the air, and even reduce water loss. But very little is known about the exchange of condensed atmospheric water between the aerial roots and the surrounding air. The main purpose of this article is to simulate the absorption of condensed atmospheric moisture by the aerial roots of corn plants. The evaluation of the amount of dew deposited on the roots and the radial water flow through the root is made using the Penman-Monteith equation and the Fick’s law correlated with the Ohm’s law respectively. The various simulations prove that the aerial roots condense atmospheric humidity and that the latter have expressed the transpiration function for certain angles of inclination with a particularity for the inclination of 30° which, from a certain amount of dew expressed the function of dew absorption. On the other hand, for other inclinations, the roots expressed the function of the absorption of humidity with an optimization for the inclination of 60 °. The absorption and transpiration mechanism needs further studies in the future about the characteristics of the radial conductivity through the parameters which influence the coefficient of radial conductivity in the terminal parts of the root than in the lateral parts. In addition, the comparative study of the Priestley-Taylor and Penman-Monteith models is necessary to better understanding of the specific parameters.

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La question de la vulnérabilité et de l'adaptation de l'agriculture sahélienne au climat au sein du programme AMMA

Cited by 8 publications

References 0 publications

Impact of Climate Change on Cereal Production in Burkina Faso

Impact of Climate Change on Cereal Production in Burkina Faso

Impact of Climate Change on Cereal Yield and Production in the Sahel: Case of Burkina Faso

Dynamics Simulation of Radial Flow Water in Aerial Roots of Corn by Deposit of Dew in Atmosphere Aerial Roots Continuum

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