Simulations demonstrating interaction between coarse and fine sediment loads in rain-impacted flow
Erosion in rain-impacted flow is associated with raindrop detachment followed by transport either by the combination of flow velocity and raindrop impact (raindrop-induced flow transport, RIFT) or the inherent capacity of the flow to transport
particles detached from the soil surface by individual raindrop impacts. The results indicate that the discharge of various sized sediments is highly dependent on local soil, rain and flow conditions.
Monthly precipitation samples were collected at Tsukuba City from 1992 to 2006, and isotope ratios of oxygen and hydrogen were analyzed for all samples. The isotope ratios of monthly precipitation have no remarkable trend in their seasonal change
. The temperature effect on isotopes in precipitation is found durinf cool period. In cases of snowfall, precipitation from Baiu front and autumnal rain front, the isotope ratios in precipitation are relatively lighter than those of other cases.
In Japan, heavy rains from June to October cause severe erosion in the agricultural fields. This paper describes the mass balances of the water, soil and nitrogen components in a plot of 159 m2 dominated by weeds. This paper also evaluates
be identified. The Ejin Section has recorded the repeated dust-storms or sandstorms since 2500 yr BP and these peak periods are consistent with the records of dust rains in historical literatures, indicating that the change of climate is a key factor to increase
for socioeconomic as well as ecological research activities for the research area, where vast areas of intact rain forests still exist but are currently faced with increasing exploitation by the rural population. - (IFL)
forms, composed rock forms, and forms shaped by rain water. Because of the exceptional characteristics of this karst phenomenon in China, we propose that the term shilin be used for this type of stone forest in the profesional literature. - (IKR)
of South Africa. The highly dynamic behavior of U in stream water is caused by complex interactions of natural and anthropogenic processes differing in frequency and magnitude. Such processes include diurnal and seasonal photosynthesis cycles, rain events