| Project/Area Number |
25304027
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 海外学術 |
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| Research Field |
Forest science
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| Research Institution | University of Hyogo |
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Principal Investigator |
Ohashi Mizue 兵庫県立大学, 環境人間学部, 教授 (30453153)
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| Co-Investigator(Kenkyū-buntansha) |
松本 一穂 琉球大学, 農学部, 准教授 (20528707)
片山 歩美 九州大学, (連合)農学研究科(研究院), 助教 (70706845)
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| Co-Investigator(Renkei-kenkyūsha) |
KUMAGAI Tomoomi (DANNOURA Masako) 名古屋大学, 地球水循環研究センター, 准教授 (50304770)
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| Research Collaborator |
KUME Tomonori 国立台湾大学, 准教授
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Fiscal Year 2015: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2014: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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| Keywords | 熱帯林 / 樹木根系 / 細根 / 生産量 / 枯死量 / 炭素循環 / 分解 / 菌根 / 土壌呼吸 / 菌類 |
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| Outline of Final Research Achievements |
We investigated (1) amount of fine root production and mortality, (2) factors controlling fine root dynamics, (3) the impact of fine root dynamics on soil carbon cycling, in a tropical rainforest in Lambir Hills National park in Sarawak, Malaysia. We found that fine root production in this forest accounted 10% of gross primary production and thicker roots decomposed faster than finer roots in this forest. Also, we clarified the clear impact of soil bacterial on soils carbon flux originating from root decomposition. Our results showed positive impact of rainfall and negative impact of temperature on fine root production and mortality, suggesting the controls of environmental factors on fine root dynamics in this forest.
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