抄録
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.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 168-176 |
| ページ数 | 9 |
| ジャーナル | Soil Science and Plant Nutrition |
| 巻 | 56 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | Published - 2010 2 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Soil Science
- Plant Science
これを引用
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.
：: Soil Science and Plant Nutrition, 巻 56, 番号 1, 02.2010, p. 168-176.研究成果: Article
}
TY - JOUR
T1 - Use of the RothC model to estimate the carbon sequestration potential of organic matter application in Japanese arable soils
AU - Yokosawa, Masayuki
AU - Shirato, Yasuhito
AU - Sakamoto, Toshihiro
AU - Yonemura, Seiichirou
AU - Nakai, Makoto
AU - Ohkura, Toshiaki
PY - 2010/2
Y1 - 2010/2
N2 - 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.
AB - 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.
KW - Agricultural soil
KW - Mitigation
KW - Rothamsted carbon model
KW - Soil carbon
UR - http://www.scopus.com/inward/record.url?scp=77950623969&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950623969&partnerID=8YFLogxK
U2 - 10.1111/j.1747-0765.2009.00422.x
DO - 10.1111/j.1747-0765.2009.00422.x
M3 - Article
AN - SCOPUS:77950623969
VL - 56
SP - 168
EP - 176
JO - Soil Science and Plant Nutrition
JF - Soil Science and Plant Nutrition
SN - 0038-0768
IS - 1
ER -