| Project/Area Number |
20510011
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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 |
Environmental dynamic analysis
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
HAGIHARA Akio University of the Ryukyus, 理学部, 教授 (90126889)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | マングローブ / 個体モデル / 相対成長率 / 相対死亡率 / メヒルギ / 個体呼吸量 / 光合成量 / 林分動態 / 樹冠構造 / 相対成長 / 自己間引き / マングローブ林 / 個体呼吸速度 / 相対成長式 / リターフォール / 個体質量 |
|---|
| Research Abstract |
We report the results of the simulated dynamics of a Kandelia obovata (S., L.) Yong forest at Manko wetland on Okinawa Island. Based on the structural and physiological properties of K. obovata, we simulated forest dynamics for 50 years and compared these results to field data sets measuring tree density and mean tree weight. In general, the ratio of the relative growth rate (RGR) to the relative mortality rate (RMR) is around 1.5 in the full-self-thinning phase. On the basis of the simulation results, we hypothesize that the RGR/RMR in the K. obovata stands at Manko wetland is greater than 1.5 in the pre-full-self-thinning phase from 0-6 years, is 1.5 in the full-self thinning phase from 7-27 years, and fluctuates in the post-full-self-thinning phase after 27 years.
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