164k views
5 votes
Level areas on foot-slopes have higher ________ and higher _______ and lower _________.

User VenkatKA
by
8.6k points

1 Answer

3 votes

Final answer:

Level areas on foot-slopes have increased soil moisture and organic matter, and reduced erosion rates compared to steep slopes, resulting in more fertile and stable soils.

Step-by-step explanation:

Level areas on foot-slopes have higher soil moisture, higher organic matter, and lower erosion rates.

The local landscape, known as relief, significantly influences soil characteristics. In comparison to steep slopes, level foot-slopes have reduced soil erosion due to less runoff and higher water infiltration, resulting in richer soil development. This is because level areas allow more water to penetrate the ground rather than quickly running off as it would on steep terrain. Additionally, organic matter tends to accumulate more in these level areas since they are more protected from erosive forces that would otherwise wash away topsoil and nutrients.

In the context of topography, slopes that are less steep generally indicate an area that is easier to traverse and likely to experience different microclimatic conditions. A north-facing slope in the northern hemisphere, for example, receives less direct sunlight than a south-facing slope, leading to differences in plant communities and soil characteristics due to variations in temperature and evapotranspiration.

Moreover, soil horizons such as the A or O horizons are typically thicker in level areas on foot-slopes due to the accumulation of organic matter and reduced erosion rates. Steep slopes often experience more erosion and therefore tend to have thinner surface horizons.

User Katy Shimizu
by
8.0k points