What you will have to think about with repsect to this earthcache
>How does the geological composition of an area influence the susceptibility to rill erosion damage, and what specific rock or soil types are most vulnerable to this erosional process?
>What are the long-term environmental consequences of rill erosion damage, and how can sustainable land management practices help mitigate its impact on ecosystems and water quality in the affected areas?
Rills are narrow and shallow channels which are eroded into unprotected soil by hillslope runoff. Rills are fairly easily visible when first incised, so they are often the first indication of an ongoing erosion problem. Unless soil conservation measures are put into place, rills on regularly eroding areas may eventually develop into larger erosional features such as gullies or even into badlands. Rill erosion occurs when runoff water forms small channels as it concentrates down a slope. Rills can be up to 50cm deep. If they become any deeper than 50cm they are referred to as gully erosion.
Rill erosion represents the intermediate process between sheet and gully erosion. Although rills are small, they transport significant amounts of soil each year. Rill erosion removes surface soil material, reduces levels of soil organic matter, and contributes to the breakdown of soil structure. Rills cannot form on every surface, and their formation is intrinsically connected to the steepness of the hillside slope. Gravity determines the force of the water, which provides the power required to start the erosional environment necessary to create rills. Slope controls the depth of the rills, while the length of the slope and the soil's permeability control the number of incisions in an area.
Visit the listed coordinates and make your observations. You will need to answer the following eathscience questions. Please provide your answers to the cache owner in a timely manner, i.e. less than a fortnight.
-Describe the width, colour, depth of the rills.
-Is the size of the rills regular?
-Why have the rills formed here?