After six years of study, a new management plan has been adopted by the National Park Service for Yosemite National Park in California which will mean fewer day visitors, fewer overnight lodgers and far fewer cars. w

According to a notice in the Jan. 22 Federal Register (page 7085), the goals of the plan are to "reduce automobile congestion . . . reduce crowding . . . [and] restore and perpetuate the natural processes of the park's ecosystems. . . ."

Parking in Yosemite Valley will be cut 50 percent to 1,271 spaces. Eventually, the notice says, the "National Park Service is committed to elimination of all private vehicles from Yosemite Valley." Bus service from "gateway communities" eventually will prvide transportation for all park visitors.

Campsites will be reduced by 9 percent, and lodging cut back parkwide by 10 percent, although "in Yosemite Valley, lodging will be reduced by 17 percent to 1.538."

Park headquarters, along with most administrative and maintenance buildings and commercial concessions, will be removed from Yosemite Valley and relocated in the nearby community of El Portal.

One problem at Yosemite is that an infection, fomes annosus, is affecting the conifer trees that are a major natural resouce of the park. A monitoring program is being established as part of the new management plan to determine if the infection is related to visitor use. If it turns out that people and their activities cause the disease, then "it may be necessary to alter visitor-use patterns," the notice concludes.