Oregon Sen. Ron Wyden became chairman of the Senate’s natural resources committee Thursday, raising hopes Congress will reform how federal forests in Southern Oregon are managed. “Sen. Wyden will play a pivotal role in this process,” Douglas County Commissioner Doug Robertson said. Wyden assumed leadership of the Energy and Natural Resources Committee with the retirement of New Mexico Democrat Jeff Bingaman. Wyden, who has served in the Senate since 1996, now decides what legislation passes through the committee. Robertson, who has spent much of his 32 years as county commissioner working with federal lawmakers on timber issues, said he hopes …