Studies on assessment for wetland ecosystem functions using environmental radio isotope

• Project/Area Number: 24310025
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental impact assessment/Environmental policy
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: NOHARA Seiichi 独立行政法人国立環境研究所, 生物・生態系環境研究センター, 室長 (60180767)
• Co-Investigator(Renkei-kenkyūsha): SENNGA Yukiko 東邦大学, 理学部化学科地球化学教室, 講師 (30434210)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000); Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2013: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2012: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
• Keywords: 環境放射性物質 / 放射性セシウム / 湿地生態系 / 環境影響評価 / 空間線量 / 湖沼底質 / 放射性物質 / セシウム137 / 湿地植物 / 生態系機能評価 / 移行率 / 生態系機能 / 物質循環

Outline of Final Research Achievements

Studies on effect of environmental radionuclide were conducted in high pollution wetland such as river wetland in North Fukushima prefecture and low pollution wetland such as Lake Kasumigaura, Lake Hinuma, Ozegahara Mire and Kushiro mire. In those wetland in region richly endowed with nature, monitoring study of cumulative dose and transition rate of environmental radionuclide were conducted. Ecosystem functions were researched and analyzed on wetland ecosystem for purposes of evaluation approach of environmental radionuclide assessment. The water and material recycling and dynamic process of environmental radionuclide were observed in protected area and catchment basin using stable isotope analysis and ICP analysis of water. The environmental radioactivity in the lake bottom sediment and wetland plants were evaluated in several site. The organic supply and organic matter decomposition in sediment were influenced by temperature and oxygen content.

Research Products

• [Journal Article] 福島原発事故後の霞ヶ浦における淡水巻貝・二枚貝の放射性セシウム137（137Cs）の濃度推移，濃縮係数および生態学的半減期. (2015)
  • Author(s): 松崎慎一郎, 佐竹潔, 田中敦, 上野隆平, 中川惠, 野原精一
  • Journal Title: 陸水学雑誌 Volume: 76 Pages: 25-34
  • NAID: 220000147855
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Variation in microbial function through soil depth profiles in the Kushiro Wetland, northeastern Hokkaido, Japan. (2015)
  • Author(s): Senga Y., Hiroki M., Terui S., Nohara S.
  • Journal Title: Ecological Research Volume: 30 Issue: 4 Pages: 1-10
  • DOI: 10.1007/s11284-015-1257-3
  • NAID: 40020539395
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Review of Effective Vegetation Mapping Using the UAV (Unmanned Aerial Vehicle) Method. (2014)
  • Author(s): Kaneko K., Nohara S.
  • Journal Title: Journal of Geographic Information System Volume: 6 Issue: 06 Pages: 733-742
  • DOI: 10.4236/jgis.2014.66060
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] The influence of changes in the degree and frequency of disturbance on the annual salt marsh plant (Suaeda maritima, Artemisia scoparia) communities in estuarine tidal flats: A case study of the Kushida River in Mie Prefecture, Japan. (2014)
  • Author(s): Kaneko K., Nohara S.
  • Journal Title: Open Journal of Ecology Volume: 4 Issue: 01 Pages: 1-10
  • DOI: 10.4236/oje.2014.41001
  • Peer Reviewed
• [Journal Article] Vegetation communities in estuarine tidal flats in the different river and basin environments of the four major rivers of Ise Bay (Suzuka, Tanaka, Kushida and Miya), Mie Prefecture, Japan (2013)
  • Author(s): Korehisa Kaneko, Seiich Nohara
  • Journal Title: Open Journal of Ecology Volume: Vol.3, No.2, Issue: 02 Pages: 205-213
  • DOI: 10.4236/oje.2013.32024
  • Peer Reviewed
• [Presentation] 湖沼生態系とその集水域における 放射性セシウムの分布特性 (2015)
  • Author(s): 野原精一・角田欣一・久下敏宏
  • Organizer: 日本生態学会第62回全国大会
  • Place of Presentation: 広島県広島市
  • Year and Date: 2015-03-22
• [Presentation] 湿地生態系における放射性セシウムの挙動 (2014)
  • Author(s): 野原精一
  • Organizer: 日本陸水学会第79回大会
  • Place of Presentation: 茨城県つくば市
  • Year and Date: 2014-09-12
• [Presentation] 赤城大沼における福島第一原発事故による放射性物質汚染の実態.
  • Author(s): 野原精一, 角田欣一, 相澤省一, 板橋英之, 森勝伸, 鈴木究真, 久下敏宏, 松岡栄一, 田中英樹, 泉庄太郎, 薬袋佳孝
  • Organizer: 日本陸水学会第78回大会
  • Place of Presentation: 大津市 龍谷大学
• [Presentation] 霞ヶ浦及びその流入河川における陸水産底生動物中の放射性セシウム濃度について.
  • Author(s): 佐竹潔, 上野隆平, 松崎慎一郎, 中川惠, 吉葉めぐみ, 田中敦, 野原精一
  • Organizer: 日本陸水学会第78回大会
  • Place of Presentation: 大津市 龍谷大学
• [Presentation] 河川・湖沼生態系の放射性物質の汚染と移動
  • Author(s): 野原精一
  • Organizer: 第61回日本生態学会
  • Place of Presentation: 広島市広島国際会議場