A gully ditch, often referred to simply as a gully, is a landform created by erosion. Specifically, it is a deep valley that's formed by water that runs across land and wears it away. Gullies typically form on hillsides when concentrated water flow, like a stream or heavy rainfall runoff, erodes the soil and creates a ravine or ditch.
Formation of Gullies
Gullies are often a result of:
- Erosion: The primary factor is the wearing away of soil by water flow.
- Runoff: Heavy rainfall or concentrated stream flow contributes to the erosive process.
- Location: Gullies are commonly found on hillsides, where water naturally flows downhill.
Characteristics of a Gully
| Feature | Description |
|---|---|
| Shape | Deep valley or ravine |
| Formation | Formed by water erosion |
| Location | Typically found on hillsides |
| Contributing Factors | Rainfall, stream runoff, susceptible soil types |
| Evolution | Can widen and deepen over time with continued water flow |
Examples of Gully Formation
Imagine a field with a slight slope. After a particularly heavy rain, water starts to flow down the slope. If the soil is loose or unprotected by vegetation, the water will begin to carve a small channel. Over time, with repeated rainfall and runoff, this small channel will deepen and widen, eventually forming a gully. This process is accelerated if the land has been disturbed by human activities, such as deforestation or poor agricultural practices.
