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Identifying critical soil loss-prone areas is necessary to better control soil loss in the Xiangxi watershed, the river basin nearest the Three Gorges Dam. A crucial element of this scheme is the development of a risk assessment model that can identify critical potential soil loss areas for land use prioritization and soil conservation. An assessment model for the risk of potential soil loss based...
The volatilization of VOC from vadose-zone soil into ambient air includes three processes: migration in soil column, molecular diffusion in viscous sub-layer, mixing and transportation in ambient air. With analysis of the migration mechanism of VOC in these three processes, a new mathematical model is developed to calculate the volatilization factor of VOC volatilizing from soil into air under evaporation...
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