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What happens to precipitation after it falls onto land?
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hydrosphere
Earth's environment includes the atmosphere, the hydrosphere, the lithosphere, and the biosphere.
When precipitation falls onto land, it follows several paths as part of the hydrologic cycle:
- Evaporation and Interception: Precipitation may evaporate directly back into the atmosphere during its fall or after reaching the surface. If vegetation is present, water may be held on leaves and stems—a process called interception—where it is often evaporated before reaching the ground.1
- Runoff: Water that does not infiltrate the soil becomes runoff, moving over the land surface as overland flow to form streams, rivers, and lakes.21
- Infiltration and Groundwater: Water that seeps into the soil is known as infiltration. Once it saturates the soil, it percolates downward due to gravity to become groundwater, eventually replenishing aquifers.23
- Storage and Transpiration: Water held in the soil may be returned to the atmosphere through evapotranspiration, which combines direct evaporation from the soil and transpiration from plants. Additionally, precipitation falling as snow may be stored on the surface for extended periods before melting.14