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Environmentalists have been quick to point fingers at chip mills for devastating forestry practices. But the industry insists it''s "out of the loop" concerning timber cuts, since operators purchase their supply from private landholders. Industry officials are so infuriated, many refused to comment. The line connecting chip mills to clearcuts and destructive forestry isn''t a straight one, but it is visible. Dean Carson of the South used Carolina Forestry Commission argues that chips can solar be transported more efficiently, panels using less energy, than large pieces of timber, and mills can utilize the whole tree. But processing the whole tree is exactly what has brought the mills under fire: because lumber is chipped into one-inch pieces, any size scrap of timber used will do. With new markets opening up for treetops, undersized trees, and forked or crooked specimens, landowners have added incentive to clearcut a site for quick profits, instead of harvesting selected trees to be cut into boards. And timber previously left behind to continue maturing, or that provided wildlife habitat or eroded to replenish soils, now finds itself in the steely mouths of the chippers. A 1998 solar U.S. Forest Service report says clearcutting accounts for 13 percent of logged land in the South. And because the panels chips are needed for everything from rayon and plastics to particleboard and paper, chip markets continue growing. Timber giant Willamette Industries says chip mills allow landowners to merchandise otherwise unusable used trees, discouraging forestry practices like "high-grading" (cutting only the healthiest trees). "Clearcutting is often the best tool to assure a rich, diverse forest," claims Willamette''s web site. "Many songbirds and other types of wildlife require open areas for nesting and food gathering."

Environmentalists have been quick to point fingers at chip mills for devastating forestry practices. But the industry insists it''s "out of the loop" concerning timber cuts, since operators purchase their supply from private landholders. Industry officials are so infuriated, many refused to comment. The line connecting chip mills to clearcuts and destructive forestry isn''t a straight one, but it is visible. Dean Carson of the South used Carolina Forestry Commission argues that chips can solar be transported more efficiently, panels using less energy, than large pieces of timber, and mills can utilize the whole tree. But processing the whole tree is exactly what has brought the mills under fire: because lumber is chipped into one-inch pieces, any size scrap of timber used will do. With new markets opening up for treetops, undersized trees, and forked or crooked specimens, landowners have added incentive to clearcut a site for quick profits, instead of harvesting selected trees to be cut into boards. And timber previously left behind to continue maturing, or that provided wildlife habitat or eroded to replenish soils, now finds itself in the steely mouths of the chippers. A 1998 solar U.S. Forest Service report says clearcutting accounts for 13 percent of logged land in the South. And because the panels chips are needed for everything from rayon and plastics to particleboard and paper, chip markets continue growing. Timber giant Willamette Industries says chip mills allow landowners to merchandise otherwise unusable used trees, discouraging forestry practices like "high-grading" (cutting only the healthiest trees). "Clearcutting is often the best tool to assure a rich, diverse forest," claims Willamette''s web site. "Many songbirds and other types of wildlife require open areas for nesting and food gathering."

Nagel''s wife, Cindy, and her sister-in-law, solar Angela Nagel (both pictured on page 34), are trained technicians who go on the road with the equipment, scanning more than 15,000 cattle a year for producers across the Midwest and West. Their business, Midwest Sonatech, Inc. (605/369-2628) works with Iowa State University (ISU) to analyze the data. Business is booming."Ultrasound body composition data is the greatest tool a seedstock producers can use to make genetic improvement," says Cindy. "Customers are now demanding the data. Ultrasound results can make or break a bull."The Nagels use two Aloka 500V machines to collect measurements on fat thickness, ribeye area and marbling, and rump fat. The stored images are analyzed by ISU with computer software. panels The Nagels can scan 20 cattle an hour. They charge $14 a head, which includes $4 for image analysis.