| Popis: |
The environment’s evolution by means of erosion processes takes places wherever the water acts, but the intensity of the phenomenon varies a a lot from one place to another depending on the resultant of two categories of dynamic components. On one side there are the components providing the surface of land with resistance by means of vegetal layer, soil profil, geological sub-layer and human intervention within the landscape which by means of a series of actions contributes to increase or decrease of the resistance of the land’s surface. On the other side, there are the components tending to level the surface of land by means of subaerial modeling processes involving the precipitation with variable intensity, gravitational forces, overland flow and channel discharge. The resultant of the two groups of dynamic components consists, among other things, in production of suspended sediment load, transported and deposited with different intensities depending on the matter and energy flow at the level of hydrographical basins. |
