| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2009: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2008: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Research Abstract |
We studied the carbon allocation of deciduous trees infected with microbes in soils and greenhouse gas (CO_2 and CH_4) emission rates under a free air CO_2 enrichment (FACE) as affected by soil fertility and simulated tropospheric ozone (O_3). Root growth and microbes' infection of birch were clearly inhibited by O_3 with an open top chamber method. Although plant defense was enhanced by elevated CO_2 but slightly reduced with high soil fertility. At high CO_2, rate of CO_2 efflux increased and CH_4 absorption rate was reduced. Moreover, number of species of collembolan with high mobility was tended to be abundant at high CO_2 treatment with thick litterfall accumulation.
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