“Aménagement en courbes de niveau,” Increasing Rainfall Capture, Storage, and Drainage in Soils of Mali

Kablan, Richard; Yost, Russell S.; Brannan, Kevin M.; Doumbia, Mamadou; Traoré, Kalifa; Yoroté, Abdramane; Toloba, Youssouf; Sissoko, Salif; Samaké, Oumar; Vaksman, Michel; Dioni, L.; Sissoko, Mankan

doi:10.1080/15324980701784191

Cited by 14 publications

(24 citation statements)

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“…These improved varieties were chosen because of their performance on station trials, although local varieties are sometimes considered better adapted to high stress and low productivity conditions typical of smallholder farms. In Mali, CRT, referred to as "Aménagement en courbes de niveau" [12,6,35], is a water conservation technique locally developed in the early 1990s by Institut d'Economie Rurale (IER) and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD). According to Kablan et al [12], the innovation of CRT resides in the fact that it is a holistic landscape level method for managing surface water on farmers' fields.…”

Section: Open Accessmentioning

confidence: 99%

“…Because of unpredictable rainfall [18] and decreased agricultural productivity, many soil and water conservation technologies such as stone lines, half-moons, contour hedgerows, rock bunds, filter walls, zaï, agroforestry, contour ridges, benches and no-tillage have been developed and are now widespread [19][20][21][22][23]. Tested technologies have shown that they can reduce runoff [16,[24][25][26] and soil erosion [27][28][29], improve water infiltration [12,22,30] and increase soil moisture [20,23,[31][32][33]. However, their adoption did not always meet the expectations probably due to the promotion of a limited number of options everywhere as if "one size fits all. "…”

Section: Open Accessmentioning

confidence: 99%

“…This later phenomenon reduces top soil layer depth and soil organic matter content leading to weak soil water-holding capacity. The combined effects of all the above-mentioned factors will induce low water infiltration rates [12] with only 10-15% of rainfall that will be used by crops for transpiration [6,13]. Thus, water availability to crop roots in the soil profile constitutes a major constraint for sustainable production systems [14][15][16][17].…”

Section: Open Accessmentioning

confidence: 99%

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Optimizing yield of improved varieties of millet and sorghum under highly variable rainfall conditions using contour ridges in Cinzana, Mali

et al. 2017

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Background: Low productivity of cereals, the staple food, in Sahelian zone of Cinzana in Mali is caused by a range of factors including but not limited to inherent low soil fertility, and insufficient and inadequate distribution of the rainfall due to high climate variability. In addition, the small amount of rain falls as heavy storms in very short periods of time leading to water losses by runoff which in turn causes a lot of erosion. The two phenomena therefore call for a combination of both strategic (combating erosion) and tactical (coping with inter-and intra-annual rainfall variability) measures to cope with the production uncertainties in such risk-prone environment. As opposed to most farmers' practice of using the same variety, a tactical solution of using varieties of different cycles for different rainfall amounts/patterns was thought to be worth testing. Varieties of different cycles for different rainfall amounts/patterns were combined with a well-known soil and water conservation practice which is the contour ridge tillage (CRT). The combined effects of the two measures on the production of different varieties of sorghum and millet as well as on soil water content were assessed in on-farm participatory trials in five villages. The experiment was run during three consecutive years (2012, 2013 and 2014).Results: A key finding of this research is that regardless of the yearly rainfall amount and provided CRT is used, there were large differences in yields between improved varieties and local ones. This is a result of higher soil water conservation and better response of the improved varieties. Conclusion:The use of CRT increases considerably the yields of improved varieties of the most important staple crops of the Cinzana commune which are millet and sorghum. Thus, the use of these early maturing improved varieties, along with CRT, could be an accessible adaptation strategy to climate variability by farmers.

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Section: Open Accessmentioning

confidence: 99%

Section: Open Accessmentioning

confidence: 99%

Section: Open Accessmentioning

confidence: 99%

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Optimizing yield of improved varieties of millet and sorghum under highly variable rainfall conditions using contour ridges in Cinzana, Mali

et al. 2017

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“…Cette lutte contre les pertes en eau par ruissellement a été entreprise par de nombreux travaux dont les objectifs principaux étaient d'améliorer la productivité des cultures, en favorisant la conservation de l'eau du sol dans les champs cultivés ( Perez et al, 1996 ;Gigou et al, 1997 ;Valet, 2000 ;Diatta et al, 2001 ;Gigou et al, 2006 ;Kablan et al, 2008). Mais, peu d'auteurs ont étudié son impact sur la diversité de la végétation naturelle (Kiema, 2007).…”

Section: Introductionunclassified

Effets des ados en courbes de niveau sur la distribution et la diversité des herbacées au champ (Sénégal).

Bayala¹,

Sène²,

Yatty³

et al. 2010

Agronomie Africaine

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RESUMEEn zone semi-arides, la lutte contre le déficit hydrique est une des préoccupations majeures des agriculteurs. Elle passe par plusieurs techniques de conservation des eaux et des sols dont les ados en courbes de niveau. Ces aménagements se sont focalisés essentiellement sur l'amélioration des rendements de cultures. Cependant, dans un contexte de dégradation globale de l'environnement, peu d'information de leur impact sur la diversité de la végétation naturelle existe. L'étude menée dans les champs de mil et d'arachide a permis d'évaluer les performances des ados en courbes de niveau. Les résultats montrent que cette technique seule contribue moins à la diversité floristique, mais combinée à la fertilisation, elle favorise le développement de nombreuses espèces. L'étude révèle une affinité entre certaines espèces et une culture donnée ; herbacées comme Anthostema senegalense et Commelina forskalei sont spécifiques à l'arachide et Cyperus sp, Polycarpaea linearifolia au mil. Mots clés : Ados en courbe de niveau, herbacées, diversité, Sénégal ABSTRACT «ADOS EN COURBE DE NIVEAU» IMPACT ON HERBACEOUS DISTRIBUTION AND DIVERSITY IN FIELDIn semi-arid area, water deficit is the main concern of farmers.

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“…This was a completely visual guide to the installation of a water conservation technology called "Amenagement en courbes de niveau" (ACN) in West Africa. This water conservation technique was developed by CIRAD (Gigou, 2006) and later characterized (Kablan et al, 2008). Adoption of the technology was slow, in part, due to the requirement for expert delineation of the contours in the field.…”

Section: Visual Decision-aidmentioning

confidence: 99%

Decision Support Systems in Agriculture: Some Successes and a Bright Future

Yost¹,

Attanandana²,

Colfer³

et al. 2011

Efficient Decision Support Systems - Practice and Challenges From Current to Future

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“Aménagement en courbes de niveau,” Increasing Rainfall Capture, Storage, and Drainage in Soils of Mali

Cited by 14 publications

References 5 publications

Optimizing yield of improved varieties of millet and sorghum under highly variable rainfall conditions using contour ridges in Cinzana, Mali

Optimizing yield of improved varieties of millet and sorghum under highly variable rainfall conditions using contour ridges in Cinzana, Mali

Effets des ados en courbes de niveau sur la distribution et la diversité des herbacées au champ (Sénégal).

Decision Support Systems in Agriculture: Some Successes and a Bright Future

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