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(Solved): Describe Why The Soil Moisture Content Is Distributed The Way It Is For Each Panel And Discuss The F...
Describe why the soil moisture content is distributed the way it is for each panel and discuss the flow direction as related to the timing of precipitation. Do this for panels Time 1, Time 2 and Time 3 in Figure 3.22.
Time 1 Time 2 Time 3 Depth Saturated Saturated Saturated Figure 3.22 Vertical profiles of water content at three consecutive times following a precipitation event. n 0 n 0 Water content, e Water content, e Water content, e elevation at the top of the capillary fringe and this sharp transition migrated up and down with water table fluctuations. The distribution of in the unsaturated zone is quite time-dependent, due to the transient nature of precipitation events that supply infiltration. A precipitation event increases 0, P, h, and K in near-surface soils, increasing pore water pressures and inducing downward flow. The water from a single precipi- tation event tends to migrate downward and diffuse vertically as a pulse of higher water content, as shown in Figure 3.22. During the precipitation event (time 1), the near-surface soils become saturated. Later at times 2 and 3, the zone of higher water content sinks through the unsaturated zone, ultimately adding to the saturated zone and raising the water table. In times of drought, the near surface soils develop low 4, P, h, and K, and slow upward flow may result.
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As given in the description, the water from a single precipitation event tends to migrate downward and diffuse vertically as a pulse of higher water content. In Time 1, the response of the graph shows