| Project/Area Number |
25370929
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Human geography
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| Research Institution | Okayama University of Science |
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Principal Investigator |
MIYAMOTO Shinji 岡山理科大学, 生物地球学部, 准教授 (60359271)
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| Research Collaborator |
ANDO Kazuo 京都大学, 東南アジア地域研究研究所, 准教授
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 土地開発史 / アジア・モンスーン地域 / 地形環境 / 埋没腐植土層 / 遺跡 / 南アジア / 民族移動 / ヒマラヤ / 環境史 / 環境考古学 / 災害 / 遺跡立地 / 人口移動 / ヒマラヤ地域 / チベット高原 / ヒマラヤ山脈 |
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| Outline of Final Research Achievements |
In this study, dated charcoal and buried humic soil layers, both of which are evidence of forest fires indicate past deforestation and agricultural land development by tribe migration around Eastern Himalayas. Around the Southern Tibet area and eastern Nepal to Arunachal Pradesh area, human impacts such as population growth by tribe migration may have accelerated environmental and agricultural changes after ca. 2 ka BP, mainly.
In Bengal and western Japan alluvial Lowland , we analyzed the changes of relationship between geo-environment and agricultural land development around the central Jamuna (Brahmaputra) River, central Bangladesh and Asahigawa River, Okayama Lowland. Based on sedimentary facies analysis and AMS radiocarbon dates, some conclusions are as follows: (1) Natural levee along the Jamuna river have formed until ca. 12 to 11 k cal yrs BP; (2) Around Lowland of Western Japan, Natural levee a have formed until ca. 13 k cal yrs BP.
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