What benefit does mulching NOT provide to soils prone to erosion?

Mulching is widely recognized for its various benefits, particularly in managing soil health and reducing erosion. One of the key functions of mulch is enhancing surface temperature regulation, as it insulates the soil and helps maintain consistent temperatures. This is crucial for promoting healthy plant growth and ensuring that the soil organisms can thrive.

Mulching also plays a significant role in moisture retention, helping to keep the soil hydrated by reducing evaporation rates. This is particularly important in erosion-prone areas where maintaining soil moisture can prevent further erosion and promote plant establishment.

Additionally, by effectively covering the soil, mulch helps control weed growth. Weeds compete with desired plants for nutrients, water, and light, so controlling them is vital in maintaining soil structure and preventing erosion.

In contrast, soil fertility is not a benefit that mulch provides; in fact, certain types of mulch can contribute organic matter over time, which can enhance soil fertility. However, mulch itself does not directly increase soil fertility levels. Therefore, the assertion that mulching reduces soil fertility accurately highlights a misconception regarding its impact on soils prone to erosion.