easy done.
you have a number of options.
1) you could thin some of the best trees for timber say take out every 3-4 tree and it wont be overly noticeable and should regenerate quickly.
2) you could cut the lower/some branches to sell as pulp.
3) fine some crops that could be planted in between the trees (shitaki mushrooms, truffels.)
4) possibly graze under some of the trees
5) rotate the tree clearing (cut down a 5th of the trees, use some money to replant with seedlings wait for them to mature a bit cut down the next lot)
6) look for harvestable products in the forest berrys, fruits, amber, seeds for consumption, seeds for sale, seedlings. any fruits collected from a forest could probably be sold under the organic banner to.
7) apply for grants to keep it forested (local governments and water companies may do this as it stops salinity/silting/ erosion etc)
that's all i can think of for now (untill i start my honours project

but try consulting a forester or forest scientist, they may have some more ideas.