California State University trustees unanimously approved a plan Tuesday for the Channel Islands campus to acquire 79 acres of farmland for a new entrance, parking and athletic fields -- over the objections of two Ventura County supervisors.

Trustees meeting in Fresno did not discuss the decision. A university spokeswoman said school officials were pleased with the trustees' actions, approving an environmental study and revisions to the school's master plan.

"We're certainly delighted with the unanimous decision of the trustees and appreciate their vote of confidence as we continue to develop this extraordinary campus," said Peggy Hinz, director of communications.

Some county officials believe the plan should have been considered by the California State University, Channel Islands Site Authority. That agency, which includes college and county officials, was created through legislation in 1998 to manage and finance the conversion of the former Camarillo State Hospital into a university.

"I would have liked our concerns to at least be addressed," said Supervisor Linda Parks, who sits on the Site Authority and listened to the meeting via a conference call from her Thousand Oaks office.

The county and university have been at odds over several aspects of the plan.

In a letter to trustees on Tuesday, Parks and Supervisor Kathy Long said the master plan failed to address adequate fire protection and delayed state funding to improve roads around the school.

Buying the farmland, part of which will be used for a 3,000-space parking lot, contradicts the school's image as a so-called environmentally focused campus, Parks and Long said. County officials also have said that purchasing the farmland could embolden the college to do more of the same, spurring growth nearby. As a state agency, the college is not bound by local growth-control laws that protect farmland.

In a staff report to trustees, university officials said fire protection was adequate; the new parking lot replaces an old one, doesn't add more spaces and would make the campus safer for pedestrians; and that trustees, not the county, have jurisdiction over CSU-owned land.