Rill
Science› Energy› Renewable Energy
Solar Energy
A small and shallow incision into topsoil layers resulting from erosion by overland flow or surface runoff that is common on slopes of unvegetated ground and agricultural land.
- — Solar Energy Development PEIS Glossary retrieved 2014-06-15
Water
A small channel eroded into the soil surface by runoff, rills easily can be smoothed out (obliterated) by normal tillage. Small grooves, furrows, or channels in soil made by water flowing down over its surface. A small stream.