"Fifty million trees planted- the government said in 2014- with a success rate of 61% compared to the average European planting success rate of 35%."
No, that's why I asked. I was aware of the less than perfect record elsewhere wondered if they had done better.
You don’t have to take an empty field and plant 100k trees. You can go to where chestnuts used to grow, have some volunteers plant some over time, say 100 every month in an area. Over the course of 10 years, we’ll get some data.
Don’t let great be the enemy of good.
Achieving a good approximation of pristine natural forests might have a lower priority than the variable needs to increase rare plants, provide an habitat for rare animals, make the forest robust against climate and geological hazards, dealing with people with friendly (e.g. edible fruit) or hostile (e.g. thick vegetation to discourage secret hemp cultivation) features, etc.