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What is percolation in soil?
Percolation in soil refers to the movement of water through the soil layers. It is important for groundwater recharge and the transportation of nutrients in the soil. Percolation rate is influenced by factors such as soil texture, compaction, and organic matter content.
What effect does construction of building and roads have on percolation through the soil. Hence what effect does it have on water table?
Construction of buildings and roads can lead to soil compaction, which reduces percolation by making it harder for water to infiltrate the ground. This can increase surface runoff and reduce groundwater recharge, leading to a decline in the water table level. Additionally, impervious surfaces like pavements can further hinder percolation and increase stormwater runoff, impacting the water cycle.
What is the difference between infiltration and percolation?
Infiltration refers to the process of water entering and moving through the soil surface. Percolation, on the other hand, is the movement of water downward through the soil layers. Infiltration occurs at the soil surface, while percolation happens within the soil profile.
What is the difference between runoff and rainfall?
Rainfall refers to the precipitation of water droplets from the atmosphere to the ground. Runoff, on the other hand, is the movement of excess water on the ground surface due to factors like saturation or impermeable surfaces. Essentially, runoff is the flow of water that occurs after rainfall.
What is the difference between percolation and seepage?
Percolation refers to the process by which water moves through soil or permeable rock, while seepage is the slow movement of water through small openings or pores in soil or rock. Percolation typically occurs vertically downward, while seepage can occur horizontally as well. Both processes contribute to the movement of water underground.
