I bought 800 acres of land that was clear cut in the early 2000s, I'm letting it reforest naturally. The dead wood was gone in less than 10 years, 20 years is

I bought 800 acres of land that was clear cut in the early 2000s, I'm letting it reforest naturally. The dead wood was gone in less than 10 years, 20 years is a stretch. To be clear, clear cutting is a horrible practice, as is mono-culture planting.