Which mulch material is NOT advisable for use when applying temporary stabilization?

The use of concrete as a mulch material for temporary stabilization is not advisable due to several reasons. Unlike organic materials such as wood chips, compost, or straw, concrete is a rigid and impermeable substance. Its application would not support the essential functions of mulch, such as moisture retention, insulation of seedlings, or erosion control.

Additionally, concrete does not biodegrade or contribute to soil health like organic mulches do. It can create a barrier that prevents water absorption and disrupts the natural ecosystem by inhibiting the growth of vegetation. The primary goal of temporary stabilization is to protect the soil while promoting vegetation and organic matter retention, which is counterproductive with concrete.

In contrast, wood chips, compost, and straw are commonly utilized as temporary mulch because they provide a soft cover that helps in controlling erosion, retaining moisture, and fostering a conducive soil environment for plant growth. These organic materials contribute to soil structure and fertility as they decompose over time, making them favorable options for temporary stabilization.