Evaluation of ecosystem impact by using peculiar isotopic signaturesof nitrogen deposition
| Project/Area Number |
19310019
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental impact assessment/Environmental policy
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
YOH Muneoki Tokyo University of Agriculture and Technology, 大学院・共生科学技術研究院, 准教授 (50260526)
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| Co-Investigator(Kenkyū-buntansha) |
木庭 啓介 東京農工大学, 大学院・共生科学技術研究院, 准教授 (90311745)
泉山 茂之 信州大学, 農学部, 准教授 (60432176)
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| Co-Investigator(Renkei-kenkyūsha) |
KOBA Keisuke 東京農工大学, 大学院・共生科学技術研究院, 准教授 (90311745)
IZUMIYAMA Shigeyuk 信州大学, 農学部, 准教授 (60432176)
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| Project Period (FY) |
2007 – 2008
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| Project Status |
Completed (Fiscal Year 2008)
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| Budget Amount *help |
¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2008: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2007: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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| Keywords | 窒素沈着物 / 安定同位体比 / 窒素飽和 / 高標高山岳域 / 生態系影響 / 大気沈着物 / 高地山岳生態系 / 窒素 |
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| Research Abstract |
大気沈着窒素の負荷により生ずる森林の窒素過剰化に伴い、ヒノキの葉の窒素安定同位体比(δ^(15)N)が顕著に低下すること、さらに、それが生ずる土壌・植物間の機構を解明した。一方、高標高域における大気沈着由来の窒素は特異に低い同位体シグナルを持つことが明らかになった。地衣類、植物ならびにニホンザルの体毛のδ^(15)Nも低標高域に比較し有意に低下しており、大気沈着窒素が高標高生態系に重大な物質的インパクト加えている実態が明らかになった。
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Report
(3 results)
Research Products
(35 results)
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[Journal Article] Large loss of dissolved organic nitrogen from nitrogen-saturated forests in subtropical China2009
Author(s)
Fang, Yunting, Zhu, Weixing, Gundersen, Per, Mo, Jiangming, Zhou, Guoyi, Yoh, Muneoki
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Journal Title
Ecosystems 12
Pages: 33-45
Related Report
Peer Reviewed
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[Presentation] A study on feeding habit of Asiaticblack bear by nitrogen isotopeanalysis of amino acids2008
Author(s)
Nakashita R, Suzuki Y, Akamatsu F,Sato M, Goto M, Izumiyama S, HayashiH, Yoh M, Tsubota T, Korenaga T
Organizer
6th International Conference on the Applications of Stable Isotope Techniques to Ecological Studies
Place of Presentation
Honolulu Hawaii, USA
Related Report
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[Presentation] A study on feeding habit of Asiatic black bear by nitrogen isotope analysis of amino acids2008
Author(s)
Nakashita R, Suzuki Y, Akamatsu F, Sato M, Goto M, Izumiyama S, Hayashi H, Yoh M, Tsubota T, Korenaga T
Organizer
6th International Conference on the Applications of Stable Isotope Techniques to Ecological Studies
Place of Presentation
Honolulu, Hawaii, USA
Related Report
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