African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6800

Article in Press

Evaluating the soil carbon sequestration potential through measuring clay, sand and silt content in soil under agroforestry parklands systems according to a rainfall gradient in Burkina Faso (West Africa)

Yacouba Noël Coulibaly and Gérard Zombré

  •  Received: 16 June 2023
  •  Accepted: 09 August 2023
Soil texture and precipitation influence soil organic carbon sequestration. This research measured soil texture to assess the organic carbon sequestration potential of the soils in agroforestry parklands according to a rainfall gradient for sites recommendations to promote agroforestry to mitigate climate change in Burkina Faso. Soil samples were collected at layers 0- 10, 10 - 20 and 20 - 30 cm in agroforestry parklands with Vitellaria paradoxa C. F Gaertn (Karite) and Parkia biglobosa (Jacq.) Benth (Nere) at Tougouri, Nobere and Sokouraba respectively located in the sahelian, sudano-sahelian savanna and sudano-guinean savanna zones. The clay, silt and sand content in soil was measured using the spectrophotometry infrared method. The soils at all the sites showed a balanced texture. Clay appears to be the textural component that would influence soil organic carbon sequestration and it was higher at Sokouraba (30,499 ± 0,456 %) and Tougouri (30,980 ± 0,451 %). It was also higher in layers 10_20 cm (27,861 ± 0,474 %) and 20_30 cm (31,759 ± 0,498 %) and the same trends were observed at Sokouraba and Tougouri. The precipitation that is a determining factor in soil organic carbon sequestration, Sokouraba could be recommended to promote agroforestry for climate change mitigation.

Keywords: texture, mitigation, ecophysiology, agriculture, climate