Mechanized Timber Harvesting to Improve Ruffed Grouse Habitat |
Common terms and phrases
10-acre blocks 10-acre strips 4-inch top diameter acres aerial view Agricultural Experiment Station Area No disturbance Aspen sucker blocks logged fall blocks logged spring blocks were logged Burris central landing Cloquet Forestry Center constraints cords Crow Wing Natural cutting Department of Natural diameter and larger disturbance Compacted Division of Forestry Dolgaard exposed 4 blocks felled and bunched Figure Forest Wildlife Relations Gordon W Gullion Haas habitat improve hardwood forest Harvesting operation humus layer inches in diameter Jeffry limbed and topped logged fall 1973 logged spring 1974 logging operation Maximum ment mile mineral soil Minnesota Agricultural Experiment Minnesota Department Morbark Natural History Area Natural Resources Overstory processed into chips pulpwood regeneration rubber-tired skidder ruffed grouse habitat sawtimber seven blocks skidded slash soil exposed stand strips 330 feet study area stumpage sulted timber total area tree length understory University of Minnesota wet areas wildlife habitat Wildlife Relations Project Wing Natural History wood