If you don't need to use the land right away, and have extra dirt, you can always try the old method of laying the small logs and organics in rows, then covering them with dirt. They quickly break down, and make great planting rows for something. I can't remember the official term for it, but it's an old method of using up what you're trying to use up, develop new soil, and get some use planting in the meantime. If you lay them out in rough rows, then scoop up the soil between the rows to cover the organics with. Once the rows decompose and you have nice soil rows, then it can all be levelled. Looked it up... hugelkultur gardening
Hugelkultur Gardening Method & Hugelkultur Raised Beds