a small leaf pile will destroy the grass underneath it quickly, but an even thicker snow pile that lasts for months throughout the winter seems to have no effect. Why?

Question

Editing just to say thanks to everyone who has contributed. The responses make perfect sense!

In: Biology

Answer 1

If they’re sitting on the same pile for ages, this will first of all, restrict oxygen and sunlight to specified patch.

Second of all, the nutrients from the pile will scorch the ground underneath as it’s too concentrated!