The tactics used here by the government are also use by the enviro groups. They bring the law suits that force the government to put restriction on the land owner, forcing him to become a willing seller.
Here is a quote from Carry_Okie's web site:
Private "charitable" foundations of major corporations have effected this strategy across the nation, both in Congress and in the courts. They sponsor and publicize subjective "science," whether to obtain legislation directed to an obvious problem or toward legal action against a weakened target. Legal precedent extends the applicability of cited legislation and lowers the cost successive claims. Property owners gradually lose their ability to finance the cost of compliance or legal resistance. Lacking a profitable use of the property, the market value approaches zero. After repeated exercise of expensive regulations, purchase of the land then concludes any remaining claim by an owner.
Klamath Basin is a Watershed Event
Check it out. Read it. He has a whole section on forestry that you might enjoy.