Use of the RothC model to estimate the carbon sequestration potential of organic matter application in Japanese arable soils

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We estimated the carbon (C) sequestration potential of organic matter application in Japanese arable soils at a country scale by applying the Rothamsted carbon (RothC) model at a 1-km resolution. After establishing the baseline soil organic carbon (SOC) content for 1990, a 25-year simulation was run for four management scenarios: A (minimum organic matter application), B (farmyard manure application), C (double cropping for paddy fields) and D (both B and C). The total SOC decreased during the simulation in all four scenarios because the C input in all four scenarios was lower than that required to maintain the baseline 1990 SOC level. Scenario A resulted in the greatest depletion, reflecting the effects of increased organic matter application in the other scenarios. The 25-year difference in SOC accumulation between scenario A and scenarios B, C and D was 32.3, 11.1 and 43.4Mt C, respectively. The annual SOC accumulation per unit area was similar to a previous estimate, and the 25-year averages were 0.30, 0.10 and 0.41t C ha^<-1> year^<-1> for scenarios B, C and D, respectively. The system we developed in the present study, that is, linking the RothC model and soil spatial data, can be useful for estimating the potential C sequestration resulting from an increase in organic matter input to Japanese arable soils, although more feasible scenarios need to be developed to enable more realistic estimation.

収録刊行物

  • Soil science and plant nutrition

    Soil science and plant nutrition 56(1), 168-176, 2010-02-01

    一般社団法人日本土壌肥料学会

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各種コード

  • NII論文ID(NAID)
    110008144310
  • NII書誌ID(NCID)
    AA00844314
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00380768
  • NDL 記事登録ID
    10598530
  • NDL 請求記号
    Z53-G349
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS 
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