Climatic Change

, Volume 68, Issue 1–2, pp 41–65 | Cite as

Creating Carbon Offsets in Agriculture through No-Till Cultivation: A Meta-Analysis of Costs and Carbon Benefits

  • James Manley
  • G. Cornelis van Kooten
  • Klaus Moeltner
  • Dale W. Johnson
Article

Abstract

Carbon terrestrial sinks are often seen as a low-cost alternative to fuel switching and reduced fossil fuel use for lowering atmospheric CO2. To determine whether this is true for agriculture, one meta-regression analysis (52 studies, 536 observations) examines the costs of switching from conventional tillage to no-till, while another (51 studies, 374 observations) compares carbon accumulation under the two practices. Costs per ton of carbon uptake are determined by combining the two results. The viability of agricultural carbon sinks is found to vary by region and crop, with no-till representing a low-cost option in some regions (costs of less than $10 per tC), but a high-cost option in others (costs of 100–$400 per tC). A particularly important finding is that no-till cultivation may store no carbon at all if measurements are taken at sufficient depth. In some circumstances no-till cultivation may yield a ‘triple dividend” of carbon storage, increased returns and reduced soil erosion, but in many others creating carbon offset credits in agricultural soils is not cost effective because reduced tillage practices store little or no carbon.

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Copyright information

© Kluwer Academic Publishers 2005

Authors and Affiliations

  • James Manley
    • 1
  • G. Cornelis van Kooten
    • 2
  • Klaus Moeltner
    • 3
  • Dale W. Johnson
    • 4
  1. 1.Department of Agricultural and Resource EconomicsUniversity of CaliforniaBerkeleyU.S.A.
  2. 2.Department of EconomicsUniversity of VictoriaVictoriaCanada
  3. 3.Department of Resource EconomicsUniversity of NevadaRenoU.S.A.
  4. 4.Department of Environmental and Resource SciencesUniversity of NevadaRenoU.S.A.

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