| Project/Area Number |
22540468
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Shinshu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KAWAI Sayuri 信州大学, 山岳科学総合研究所, 研究員 (30510010)
|
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| Co-Investigator(Renkei-kenkyūsha) |
MOMOHARA Arata 千葉大学, 大学院・園芸学研究科, 准教授 (00250150)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Keywords | 地形発達史 / 山岳環境変動 / 堰止め湖 / 花粉分析 / 温暖化 / 14C年代 / 埋積谷地形 / 微動アレー探査 / 流路変遷 / 活断層 / 湖成堆積物 / 埋積谷 / 後氷期 / ^<14>C年代 / 山岳環境変遷 |
|---|
| Research Abstract |
Extremely plane topography of the Kamikochi Basin in the Northern Japan Alps was a result of 12,000 y.BP. damming up of the Paleo-Azusa river by volcanic eruption of the Yakedake Volcanoes, and thick lacustrine sediment (180m in thick) deposited in paleo-Kamikochi Lake. Based on pollen analysis of the sediment core drilled at Kamikouchi basin, there was poor vegetation around the lake at first because of cold. The pioneer forest has gradually developed withwarming. From 11000 to 9000 y.BP, subarctic conifers escaped from the lower areas increased.From 9000 to 4000 y.BP, deciduous broadleaved forest dominated by Fagus crenata and Quercus(Lepidobalanus) increased.
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