| Project/Area Number |
22405022
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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 | 海外学術 |
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| Research Field |
Forest science
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| Research Institution | Obihiro University of Agriculture and Veterinary Medicine |
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Principal Investigator |
TAKEDA Kazuo 帯広畜産大学, 畜産学部, 教授 (80374768)
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| Co-Investigator(Kenkyū-buntansha) |
MIZOTA Chitoshi 岩手大学, 農学部, 名誉教授 (10089930)
NOBORI Yoshihiro 山形大学, 農学部, 教授 (80237867)
LOPEZ Larry 山形大学, 農学部, 准教授 (20374712)
YAMANAKA Toshirou 岡山大学, 自然科学研究科, 准教授 (60343331)
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| Research Collaborator |
ISHIDA Sachinobu 弘前大学, 理工学研究科, 助教 (60292140)
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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 |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
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| Keywords | モンゴル / 森林火災 / カラマツ / 永久凍土 / 年輪解析 / 森林バイオマス / 窒素安定同位体 / 気候変動 |
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| Research Abstract |
The purpose of this research was to investigate the influence of fire on larch forests in northern Mongolia. Wildfires occur especially in spring and autumn intensified by the accumulation of branch shedding on the forest floor. After fire, regeneration depends on disseminated seeds and light potential determined by the density of remaining adult trees. Thus, the moderate intensity fire, regeneration is the most active. In such situation, forest biomass recovers rapidly, but decreases due to weakening of fungi after repeated fires. After 1950, tree-ring growth indicates that since the late 1950's, the occurrence of smaller has increased coinciding with the largest fire occurrences at the end of 20th century.
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