There are no competitive price for each tree when dealing with this kind of situation, and if you simply paid one person to not cut down a tree, the next person

There are no competitive price for each tree when dealing with this kind of situation, and if you simply paid one person to not cut down a tree, the next person behind them will also need to be paid. The only effective way is to make cutting down the trees worthless. We can look at how the world combated illegal hunting for inspiration. We made ivory trade illegal. We remove the tusk early from elephants, and promote tourism that want to see healthy alive elephants. People who are desperate don't gain as much from hunting elephants anymore, and so the elephants are slowly gaining in populations. Similar tactics are used to save Rhinoceros from illegal hunters. Make it illegal to trade wood harvested in the rain forest, and create major fines for any company that is found to have profited from it. Make similar law against any food grown on land with previous rain forests, and give people legal alternatives that make more economical sense.