| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
We have investigated water and sediment discharge owing to land use change in the evergreen forest experimental catchment in Kampong Thom Province, Cambodia. As the result of this study, it is important to conserve vegetation on the forest floor and to recover vegetation after cutting for preventing soil erosion. The amount of annual sediment yield in the O Teak Loork catchment where forest has been mostly developed was estimated to be very small values as 1.98 × 0.001 mm/year as that value at Japanese forest sites. Since topography of the study site is very flat, it is suggested that sediment produced by soil erosion is hard to be transported to a channel.
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