Humans have a strange obsession with tidying up fallen trees. Fair enough if you need to move them off a footpath or out of a road, but a fallen tree is a gift that keeps on giving. Taking fallen wood for fuel or make something can also make sense, but taking it away because it’s deemed untidy is ridiculous.
First up there’s the should-be-obvious point that if you leave a tree to rot down it will slowly return nutrients to the soil, feeding everything else.
A fallen tree provides a home for fungi – sometimes many different kinds. It also provides homes for insects, and as the holes in it get bigger it may provide a refuge for small creatures as well. The insects homed in a dead tree in turn provide a food supply for birds and the aforementioned small creatures, who in turn provide food for predators. Things eating each other is the basis of how the natural world gets things done.
In parks, gardens and managed woodlands, I think the problem is that humans try to impose weird beauty standards on nature. Decay is part of nature. The urge to impose human values is a very human problem. Nature tends not to grow monocultures in straight lines. We train ourselves to tidy up all signs of death and decay and it is an unhealthy and destructive urge. Dead seed heads feed small birds through the winter months. Long, straggly grass provides insects with homes. Dead trees have an amazing afterlife that, even as decay is underway, is full of new life.
Out there in the real world, decay and growth go hand in hand. One thing dies and another thing rises. Beautiful fungi forms emerge from the rotting wood. Dead trees are a key part of the life of the forest. Humans too often treat decay as something to fight and try to control. It offends us. It reminds us that our faces won’t stay smooth and unblemished. It reminds us that we are mortal. We don’t like being reminded that we are mortal, and so we go to great lengths to hide mortality from ourselves. We worry about afterlives we can only imagine, while failing to recognise the beauty and power of the physical afterlife that turns our remains into something new.