Contour bunding technology-evidence and experience in the semiarid region of southern Mali.

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Title: Contour bunding technology-evidence and experience in the semiarid region of southern Mali.
Authors: Birhanu, Birhanu Zemadim1 (AUTHOR) z.birhanu@cgiar.org, Traoré, Kalifa2 (AUTHOR), Sanogo, Karamoko1 (AUTHOR), Tabo, Ramadjita1 (AUTHOR), Fischer, Gundula3 (AUTHOR), Whitbread, Anthony Michael4 (AUTHOR)
Source: Renewable Agriculture & Food Systems. 2022 Supplement 1, Vol. 37, pS55-S63. 9p.
Subject Terms: *Agricultural productivity, *Crop yields, *Soil erosion, *Crop improvement, *Arid regions, *Droughts, *Agricultural water supply, Measurement of runoff
Geographic Terms: Mali
Abstract: Land and water management practices have been widely implemented in rural Mali since the 1980s to improve agricultural productivity and erosion control. Under conditions of recurring droughts, these practices are expected to increase farmers' ability to cope with shocks. One of the most common practices applied in the central and southern parts of Mali is contour bunding (CB). In this study the impact of the CB technology is evaluated with a focus on biophysical and socio-economic benefits. Data were collected in two agro-ecologies of southern Mali and were generated through field experimentation and household survey. Field experimentation involved implementation of contour lines with farm ridges, agronomic trails and runoff and erosion measurements. Agronomic data was collected on sorghum, maize, groundnut and millet for three consecutive years (2015 to 2017). Socio-economic data on the use of CB was obtained from individual farmer surveys. CB involves the layout of contour lines with land leveling devices to identify points of equal elevation and construction of contour lines with draught animals and human labor. The majority of the labor input to construct and maintain the CB comes from adult men who are head of the household (58%) and youth male (33%). Results indicate that with the application of CB yield of crops was higher with the highest increase in grain yield and biomass obtained for maize and millet (P < 0.01). CB application was useful in retaining soil water and reduced erosion rate. In treatment fields, 162 mm of rainfall per year was saved as soil moisture and on average 13,090 kg per hectare of soil was lost from farm fields without CB, and CB implementation significantly reduced the soil loss by 163% (P < 0.01). The improvements in crops yield and biomass, and the retention of soil nutrients positively changed farm level productivity conditions. The majority of farmers (78%) perceived higher income from the sale of crops grown on CB plots. These results suggest the landscape wide application of CB. [ABSTRACT FROM AUTHOR]
Copyright of Renewable Agriculture & Food Systems is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Contour bunding technology-evidence and experience in the semiarid region of southern Mali.
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  Data: Land and water management practices have been widely implemented in rural Mali since the 1980s to improve agricultural productivity and erosion control. Under conditions of recurring droughts, these practices are expected to increase farmers&#39; ability to cope with shocks. One of the most common practices applied in the central and southern parts of Mali is contour bunding (CB). In this study the impact of the CB technology is evaluated with a focus on biophysical and socio-economic benefits. Data were collected in two agro-ecologies of southern Mali and were generated through field experimentation and household survey. Field experimentation involved implementation of contour lines with farm ridges, agronomic trails and runoff and erosion measurements. Agronomic data was collected on sorghum, maize, groundnut and millet for three consecutive years (2015 to 2017). Socio-economic data on the use of CB was obtained from individual farmer surveys. CB involves the layout of contour lines with land leveling devices to identify points of equal elevation and construction of contour lines with draught animals and human labor. The majority of the labor input to construct and maintain the CB comes from adult men who are head of the household (58%) and youth male (33%). Results indicate that with the application of CB yield of crops was higher with the highest increase in grain yield and biomass obtained for maize and millet (P &lt; 0.01). CB application was useful in retaining soil water and reduced erosion rate. In treatment fields, 162 mm of rainfall per year was saved as soil moisture and on average 13,090 kg per hectare of soil was lost from farm fields without CB, and CB implementation significantly reduced the soil loss by 163% (P &lt; 0.01). The improvements in crops yield and biomass, and the retention of soil nutrients positively changed farm level productivity conditions. The majority of farmers (78%) perceived higher income from the sale of crops grown on CB plots. These results suggest the landscape wide application of CB. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Renewable Agriculture &amp; Food Systems is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1017/S1742170519000450
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: S55
    Subjects:
      – SubjectFull: Agricultural productivity
        Type: general
      – SubjectFull: Crop yields
        Type: general
      – SubjectFull: Soil erosion
        Type: general
      – SubjectFull: Crop improvement
        Type: general
      – SubjectFull: Arid regions
        Type: general
      – SubjectFull: Droughts
        Type: general
      – SubjectFull: Agricultural water supply
        Type: general
      – SubjectFull: Measurement of runoff
        Type: general
      – SubjectFull: Mali
        Type: general
    Titles:
      – TitleFull: Contour bunding technology-evidence and experience in the semiarid region of southern Mali.
        Type: main
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            NameFull: Birhanu, Birhanu Zemadim
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            NameFull: Traoré, Kalifa
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            NameFull: Sanogo, Karamoko
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            NameFull: Tabo, Ramadjita
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            NameFull: Fischer, Gundula
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            NameFull: Whitbread, Anthony Michael
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            – D: 02
              M: 02
              Text: 2022 Supplement 1
              Type: published
              Y: 2022
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              Value: 17421705
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              Value: 37
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