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- A supplement to Research Paper NC-9 published in 1966, this list covers 208 additional references dealing with the growth and production of walnut.AuthorsMartha K. Dillow, Norman L. HawkerKeywordsSourceResearch Paper NC-70. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- This paper examines the factors that lead to the genesis of fire whirlwinds over flat terrain. Also presented is an estimate of the number of days one might expect to encounter meteorological conditions that permit such formations.AuthorsDonald A. Haines, Gerald H. UpdikeKeywordsSourceResearch Paper NC-71. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Summarizes information on: (1) soil-site relations; (2) associated vegetation; (3) methods and requirements for reproduction; (4) stand development; (5) yield and 10-year net growth; (6) damaging agents. A key to recommended management practices is given for pulpwood and Christmas tree stands, and requirements for successful broadcast burning are included.AuthorsWilliam F. JohnstonSourceResearch Paper NC-64. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Discusses results of study on crosscut shearing of aspen, basswood, spruce, hard maple, and yellow birch with numerous shear blade and anvil designs. Also includes effect of temperature, coated shear blades, dulling, wood properties, and very thin shear blades on force and splitting damage.AuthorsRodger A. ArolaKeywordsSourceResearch Paper NC-68. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Compares storm flow from upland fields with outflow at the bottom of wooded slopes below. In general, larger upland flows produced larger lower station flows. Lower station flow as a percentage of upland runoff for large storms ranged from 56 to 94.AuthorsRichard S. SartzKeywordsSourceResearch Paper NC-69. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Overstories left after aspen-mixed hardwood stands are logged can be controlled with aerially applied herbicides without endangering aspen suckers.AuthorsDonald A. PeralaKeywordsSourceResearch Note NC-106. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Reports the results of a survey of operational prescribed burns in Minnesota and Wisconsin during 1969.AuthorsRodney W. SandoKeywordsSourceResearch Note NC-107. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Summarizes the best available seed source recommendations for the major species used in planting programs in Minnesota, Wisconsin, and MichiganAuthorsJames P. King, David H. DawsonKeywordsSourceResearch Note NC-108. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- Describes a density-gradient column used to measure wood and bark chip densities for segregation purposes.AuthorsTerrance M. Conder, John C. Edgar, Larry M. JulienKeywordsSourceResearch Note NC-112. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971
- In a study of architects'' opinions of maple flooring versus vinyl asbestos tile for school gymnasuims, resiliency and durability were found to be important factors favoring maple whereas vinyl asbestos tile was felt to be less costly and more dimesionally stable.AuthorsGary R. LindellKeywordsSourceResearch Note NC-109. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment StationYear1971