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Title of Journal: Agroforest Syst

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Abbravation: Agroforestry Systems

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Springer Netherlands

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DOI

10.1007/978-3-319-29965-5_5

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ISSN

1572-9680

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Contribution of trees to soil carbon sequestration

Authors: Asako Takimoto Vimala D Nair P K Ramachandran Nair
Publish Date: 2008/10/18
Volume: 76, Issue: 1, Pages: 11-25
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Abstract

Consequent to recent recognition of agricultural soils as carbon C sinks agroforestry practices in the West African Sahel WAS region have received attention for their C sequestration potential This study was undertaken in the Ségou region of Mali that represents the WAS to examine the extent of C sequestration especially in soils in agroforestry systems Five landuse systems were selected in farmers’ fields two traditional parkland systems two improved agroforestry systems live fence and fodder bank and a socalled abandoned land Soil samples taken from three depths 0–10 cm 10–40 cm and 40–100 cm were fractionated into three size classes 2000–250 μm 250–53 μm and 53 μm and their C contents determined Wholesoil C contents g kg−1 soil across three depths ranged from 133–469 in the parklands 111–442 in live fence 187–230 in fodder bank and 369–530 in abandoned land and they correlated positively with silt + clay content Using the 13C isotopic ratio as an indicator of relative contribution of trees C3 plants and crops C4 plants to soil C more treeorigin C was found in larger particle size and surface soil and indicated that longterm tree presence promoted storage of protected C in deeper soil Existing longstanding agroforestry practices of the region such as the parklands seemed to have little advantage for sequestering additional C whereas improved agroforestry practices such as live fence and fodder bank introduced in treeless croplands seemed to be advantageousThe financial support that the first author received for the study from the Fulbright Program the Joint Japan/World Bank Graduate Scholarship Program JJ/WBGSP Center for Subtropical Agroforestry of the University of Florida UF and Tropical Conservation and Development Program of UF is greatly appreciated We thank Dr Bocary Kaya and other members of staff of ICRAF Sahel Regional Programme Mali for their cooperation and support for field research We also thank Solomon Haile for his assistance at various stages of this work

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  2. Adoption potential of selected organic resources for improving soil fertility in the central highlands of Kenya
  3. A conceptual business model for an agroforestry consulting company
  4. Biomass production and carbon stocks in poplar-crop intercropping systems: a case study in northwestern Jiangsu, China
  5. Marginal effects on biodiversity, carbon sequestration and nutrient cycling of transitions from tropical forests to cacao farming systems
  6. Photosynthesis, growth and yield of soybean and maize in a tree-based agroforestry intercropping system on the Loess Plateau
  7. Hybrid poplar ( Populus ssp.) selections for arid and semi-arid intermountain regions of the western United States
  8. Women and agroforestry: four myths and three case studies
  9. Exotic tree species displace indigenous ones on farms at intermediate altitudes around Mount Kenya
  10. Seasonal dependence of rooting success in cuttings from natural forest trees in Madagascar
  11. Cover crops alter phosphorus soil fractions and organic matter accumulation in a Peruvian cacao agroforestry system
  12. Response of the common bean ( Phaseolus vulgaris L.) to Tithonia diversifolia (Hamsl.) Gray biomass retention or removal in a slash and mulch agroforestry system
  13. Forest changes over a century in Sardinia: implications for conservation in a Mediterranean hotspot
  14. Microclimatic differences between mature loblolly-pine silvopasture and open-pasture
  15. An evaluation of the century model to predict soil organic carbon: examples from Costa Rica and Canada
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  18. Floral resource partitioning by ants and bees in a jambolan Syzygium jambolanum (Myrtaceae) agroforestry system in Brazilian Meridional Amazon
  19. Microclimate patterns on the leeside of single-row tree windbreaks during different weather conditions in Florida farms: implications for improved crop production
  20. Perennial crop-based agroforestry systems in Northeast Brazil
  21. Arbuscular mycorrhizal association of indigenous agroforestry tree species and their infective potential with maize in the rift valley, Ethiopia
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