• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Impacts of elevated atmospheric CO_2 concentration on carbon and nitrogen metabolisms and greenhouse gas emission in plant-soil systems

Research Project

Project/Area Number 16380168
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Agricultural environmental engineering
Research InstitutionThe University of Tokyo

Principal Investigator

KOBAYASHI Kazuhiko  The University of Tokyo, Graduate School of Agricultural and Life Sciences, Professor, 大学院・農学生命科学研究科, 教授 (10354044)

Co-Investigator(Kenkyū-buntansha) NAKAMOTO Tomomi  The University of Tokyo, Graduate School of Agricultural and Life Sciences, Associate Professor, 大学院・農学生命科学研究科, 助教授 (50180419)
ABE Jun  The University of Tokyo, Graduate School of Agricultural and Life Sciences, Assistant, 大学院・農学生命科学研究科, 助手 (60221727)
SASAKI Haruto  The University of Tokyo, Graduate School of Agricultural and Life Sciences, Assistant, 大学院・農学生命科学研究科, 助手 (60225886)
INUBUSHI Kazuyuki  Chiba University, Faculty of Horticulture, Professor, 園芸学部, 教授 (00168428)
OKADA Masumi  National Agricultural Research Center for Tohoku Region, Team Leader, 東北農業研究センター, チーム長(研究職) (10355274)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥15,300,000 (Direct Cost: ¥15,300,000)
Fiscal Year 2005: ¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 2004: ¥10,400,000 (Direct Cost: ¥10,400,000)
KeywordsCO_2 / carbon dioxide / methane / rice / lowland field / root / cultivar / FACE / CO_2 / 気泡 / 炭素同位体
Research Abstract

We studied impacts of elevated atmospheric CO_2 concentration ([CO_2]) on carbon and nitrogen metabolisms in plant-soil systems under flooded lowland rice production with the major thrusts on the changes in root dynamics, soil dissolved organic carbon and methane emission. The results are summarized as follows :
In a free-air CO_2 enrichment (FACE) experiment, a nominal increase of [CO_2] by 200 ppm increased rice grain yield by 15 %, which was unchanged by applying nitrogen fertilizer beyond the recommended amount, but was reduced to 7 % when the fertilization rate was halved. Root dynamics studied in the FACE experiment by using root-bags and minirhyzotron showed that elevated [CO_2] enhanced new root formation during the vegetative stage, had no effect during the flowering stage, and accelerated root death for mid- to late- maturity stages.
In a sun-lit chamber experiment, an elevation of [CO_2] by 200 ppm increased methane (CH_4) emission for all four rice varieties, which differed i … More n CH_4 emission rate but showed no difference in the increase of CH_4 emission due to [CO_2] enrichment. There was no clear difference between [CO_2] levels in dissolved CH_4 concentration in soil water, whereas dissolved organic carbon concentration was increased by [CO_2] elevation in all the varieties. Three of the four varieties showed lower activity of CH_4 oxidation under elevated [CO_2], while one variety showed the opposite response. In the same chamber experiment, it was shown that CH_4 accumulation in soil gas phase can be monitored by using minirhizotron and evaluated by the area of air bubbles in images of the soil profile. The association of air bubbles with roots clearly showed the contribution of rhizodeposition to CH_4 generation. Area of air bubbles was increased by the [CO_2] elevation, which indicated increase of CH_4 generation. The chamber experiment was simulated with a biogeochemistry model : DNDC, which showed an increase in CH_4 emission under elevated [CO_2] in accordance with the observations. The model was also able to simulate seasonal change in the CH_4 emission, whereas it deviated from the observations with respect to the varietal difference in CH_4 emission. Less

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (17 results)

All 2006 2005 2004

All Journal Article (16 results) Book (1 results)

  • [Journal Article] Effects of elevated atmospheric CO_2 concentrations on CH_4 and N_2O emission from rice soil : an experiment in controlled-environment chambers.2006

    • Author(s)
      Cheng, W., Yagi, K., Sakai, H., Kobayashi, K.
    • Journal Title

      Biogeochemistry 77

      Pages: 351-373

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effects of elevated atmospheric CO_2 concentrations on CH_4 and N_2O emission from rice soil : an experiment in controlled-environment chambers.2006

    • Author(s)
      Chen, W., Yagi, Y., Sakai, H., Kobayashi, K.
    • Journal Title

      Biogeochemistry 77

      Pages: 351-373

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Modeling the interactive effects of atmospheric CO_2 and N on rice growth and yield.2005

    • Author(s)
      Bannayan, M., Kobayashi, K., Kim, H.-Y., Lieffering, M., Okada, M., Miura, S.
    • Journal Title

      Field Crops Research 93

      Pages: 237-251

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Influence of elevated concentrations of atmospheric CO_2 on CH_4 and CO_2 entrapped in rice-paddy soil.2005

    • Author(s)
      Cheng, W., Yagi, K., Xu, H., Sakai, H., Kobayashi, K.
    • Journal Title

      Chemical Geology 218

      Pages: 15-24

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Effect of CO_2 enrichment on the translocation and partitioning of carbon at the early grain-filling stage in rice (Oryza sativa L.).2005

    • Author(s)
      Sasaki, H., Aoki, N., Sakai, H., Hara, T., Uehara, N., Ishimaru, K., Kobayashi, K.
    • Journal Title

      Plant Production Science 8

      Pages: 8-15

    • NAID

      110001720821

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Seasonal changes in canopy photosynthesis and respiration, and partitioning of photosynthate in rice (Oryza sativa L.) grown under free-air CO_2 enrichment.2005

    • Author(s)
      Sasaki, H., Hara, T., Ito, S., Miura, S., Hoque, Md.M., Lieffering, M., Kim, H.Y., Okada, M., Kobayashi, K.
    • Journal Title

      Plant and Cell Physiology 46

      Pages: 1704-1712

    • NAID

      10018281216

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 高CO_2濃度環境下における水稲根の発生・枯死と出液速度.2005

    • Author(s)
      長谷部寛, 小林和彦, 阿部淳, 森田茂紀, 林彦宏, 岡田益己, Hoque, Md. M., 長谷川利拡
    • Journal Title

      根の研究 14・3

      Pages: 129-129

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effect of CO_2 entrichment on the translocation and partitioning of carbon at the early grain-filling stage in rice (Oryza sativa L.).2005

    • Author(s)
      Sasaki, H., Aoki, N., Sakai, H., Hara, T., Uehara, N., Ishimaru, K., Kobayashi, K.
    • Journal Title

      Plant Production Science 8

      Pages: 8-15

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Seasonal changes in canopy photosynthesis and respiration, and partitioning of photosynthate in rice (Oryza sativa L.) grown under free-air CO_2 enrichment.2005

    • Author(s)
      Sasaki, H., Hara, T., Ito, S., Miura, S., Hoque, Md.M., Lieffering, M., Kim, H.Y., Okada M., Kobayashi, K.
    • Journal Title

      Plant and Cell Physiology 46

      Pages: 1704-1712

    • NAID

      10018281216

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 高CO_2濃度環境下における水稲根の発生・枯死と出液速度.2005

    • Author(s)
      長谷部寛, 小林和彦, 阿部淳, 森田茂紀, 林彦宏, 岡田益己, Hoque, Md.M., 長谷川利拡
    • Journal Title

      根の研究 14・3

      Pages: 129-129

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 土壌生態圏の未来 : 人間活動が大気と土壌生態系に及ぼす影響2004

    • Author(s)
      小林和彦, 八木一行, 程為国, 犬伏和之
    • Journal Title

      化学と生物 42,8

      Pages: 530-536

    • NAID

      10016519472

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Comments on another way of partitioning mean square deviation proposed by Gauch et al.(2003)2004

    • Author(s)
      Kazuhiro KOBAYASHI
    • Journal Title

      Agronomy Journal 96

      Pages: 1206-1208

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The future of pedosphere : Anthropogenic impacts on atmosphere and pedosphere2004

    • Author(s)
      Kobayashi, K., Yagi, K., Cheng, W., Inubushi, K.
    • Journal Title

      Chemistry and Biology 42

      Pages: 530-536

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Comments on another way of partitioning mean square deviation proposed by Gauch et al.(2003)2004

    • Author(s)
      Kobayashi, K
    • Journal Title

      Agronomy Journal 96

      Pages: 1206-1208

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 土壌生態圏の未来:人間活動が大気と土壌生態系に及ぼす影響2004

    • Author(s)
      小林和彦, 八木一行, 程為国, 犬伏和之
    • Journal Title

      化学と生物 42,8

      Pages: 530-536

    • NAID

      10016519472

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Comments on another way of partitioning mean square deviation proposed by Gauch et al.(2003)2004

    • Author(s)
      Kazuhiko KOBAYASHI
    • Journal Title

      Agronomy Journal 96

      Pages: 1206-1208

    • Related Report
      2004 Annual Research Report
  • [Book] Managed ecosystems and CO_2 : case studies, processes, and perspectives (Nosberger J, Long SP, Norby RJ, Stitt M, Hendrey GR, Blum H. eds.)2006

    • Author(s)
      Kobayashi K, Okada M, Kim H-Y, Lieffering M, Miura S, Hasegawa T
    • Total Pages
      18
    • Publisher
      Springer verlag
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi