What do you call the lines of concentrated water flow between soil horizons?

The term used for the lines of concentrated water flow between soil horizons is "percolines." These are specific pathways in the soil where water moves downward through the soil layers, influenced by factors such as soil texture and structure. Percolines can play a significant role in the hydrological cycle, facilitating the movement of water from the surface into deeper soil layers, which can affect soil moisture and nutrient transport.

In contrast, water tables refer to the upper surface of the saturated zone in the ground where soil or rock is saturated with water, which is different from the dynamic flow of water between soil horizons. Groundwater pertains to the water that exists below the earth's surface in the saturated zone. Surface runoff is the water that flows over the land surface when precipitation exceeds the rate of absorption by the ground, not necessarily involving movement through soil layers. Each of these terms describes different aspects of water movement and storage in the environment, but only percolines specifically address the concentrated flow within soil horizons.