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

Masayuki Yokosawa, Yasuhito Shirato, Toshihiro Sakamoto, Seiichirou Yonemura, Makoto Nakai, Toshiaki Ohkura

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

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 43.4 Mt 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 0.41 t 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.

Original languageEnglish
Pages (from-to)168-176
Number of pages9
JournalSoil Science and Plant Nutrition
Volume56
Issue number1
DOIs
Publication statusPublished - 2010 Feb
Externally publishedYes

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arable soils
carbon sequestration
soil organic carbon
soil organic matter
organic matter
carbon
organic carbon
soil
double cropping
spatial data
animal manures
paddies
paddy field
simulation
manure

Keywords

  • Agricultural soil
  • Mitigation
  • Rothamsted carbon model
  • Soil carbon

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

Cite this

Use of the RothC model to estimate the carbon sequestration potential of organic matter application in Japanese arable soils. / Yokosawa, Masayuki; Shirato, Yasuhito; Sakamoto, Toshihiro; Yonemura, Seiichirou; Nakai, Makoto; Ohkura, Toshiaki.

In: Soil Science and Plant Nutrition, Vol. 56, No. 1, 02.2010, p. 168-176.

Research output: Contribution to journalArticle

Yokosawa, Masayuki ; Shirato, Yasuhito ; Sakamoto, Toshihiro ; Yonemura, Seiichirou ; Nakai, Makoto ; Ohkura, Toshiaki. / Use of the RothC model to estimate the carbon sequestration potential of organic matter application in Japanese arable soils. In: Soil Science and Plant Nutrition. 2010 ; Vol. 56, No. 1. pp. 168-176.
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