| Budget Amount *help |
¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
|
|---|
| Outline of Final Research Achievements |
We conducted field survey in tropical peat swamp in Southeast Asia, in which rapid environmental changes (such as deforestation, drainage, and peat fires) are occurring. We applied hydrological and biogeochemical survey to elucidate the effects of environmental changes on material cycling, especially greenhouse gas emissions and water quality. Our field observation showed the change in carbon dioxide emission from peat decomposition (Drained forest >undrained intact forest > drained and burnt degraded peat). We also firstly reported ecosystem scale methane flux in undrained peat swamp forest in Indonesia. Our results showed that the swamp forest can switch from methane sink in dry season to methane source in wet and inundated season. These reports contribute deeper understanding of changes in material cycles in tropical peatland under rapid changes.
|
