Eli5 Explain like I’m five What do those little black fabric fences used for around construction sites? I’ve always thought erosion, but what does one fence do?

Question

Seems like all the ground would erode to the fence?

In: 1

Answer 1

The fence is just meant to stop that ground from running off of the construction site. As construction nears the end they can spread it out again around the now developed land and hopefully plantlife will take over fast enough to stop future erosion from the site.