@article{oai:ir.kagoshima-u.ac.jp:00005226, author = {SHIMOKAWA, Etsuro}, journal = {南方海域調査研究報告=Occasional Papers}, month = {2016-10-28}, note = {The effect of the forest fire on the erosion by rainsplash and sheet erosion was mainly examined based on the field survey in Kutai National Park. Lowering values of the ground surface (depth of erosion) against exposed tree roots as datable references were measured at each corner point of the erosion survey plot and the erosion rate (mm/yr) was calculated. The erosion rate is different between the unburnt area and the burnt area. The erosion rate of the unburnt area is small, being 0.13 to 0.35 mm/yr. On the other hand, the erosion rate of the burnt area is 2.30 to 4.65 mm/yr. The forest fire accelerates the rate of erosion on the ground surface. This reason may be burning of the vegetation cover and the soil organic matter including litter, increasing susceptibility of soil to rainsplash and sheet erosion, occurrence of the overland flow due to low infiltration rate on the slopes and so forth. The old charcoal layer was found out in the soil composed of sediment from the upper slope around the camp sites of km 45, 24 and 9. This suggests existence of old forest fires in Kutai National Park and also occurrence of intence rainsplash and sheet erosion just after a fire.}, pages = {2--11}, title = {Effects of a Fire of Tropical Rain Forest on Soil Erosion}, volume = {14}, year = {} }