The Tasmanian Liberal government has succeeded in unwinding key parts of the peace deal to end the state's forest wars.

The legislation gives the timber industry greater access to forests, makes them harder to set aside from logging, and cuts out environmentalist consultation.

Around 400,000 hectares of high conservation value forests protected by the peace deal will be placed in future logging zones. Access to reserves for rare rainforest timbers was also confirmed.

The Liberal government's bill, which is passing through the state parliament, met an election pledge to "tear up" the deal reached between industry, union and environmental groups over nearly five years of arduous talks.

"For the first time in our state's history the Green tide is being turned and the balance is being reset," Resources Minister Paul Harriss said.