National Geographic : 1974 Apr
From pampered progeny, tomorrow's forests: Douglas fir seedlings carpet a Weyerhaeuser nursery near Little Rock, Washington. Soil under cover in the background has been sterilized for seed ing. After trees are transplanted to clear cut areas, Weyerhaeuser will spur growth by fertilizing and thinning. With similar coddling, this week-old loblolly seedling (right), sprouting at a Forest Service research station in Louisi ana, will become large enough to cut for pulpwood in ten years. Timber: How Much Is Enough?