United States Department of Agriculture
Contains 17 papers summarizing up to 5 years of recent study on insect and disease problems of black walnut and butternut given at a workshop sponsored by the USDA Forest Service's North Central Forest Experiment Station and held in Carbondale, Illinois, June 13 and 14, 1978.
Contains 26 papers that present the state-of-the-art of nongame bird research and management in the northeastern United States.
Presents equations for estimating biomass and woody size class distributions for shrubs and small trees (<2.5 cm d.b.h.) of 17 northeastern Minnesota species. Relations between stem diameter at 15 cm above ground and plant height, crown length, and stem diameter at ground are also given.
Discusses Minnesota saw log and pulpwood logging utilization factors developed during 1975-1976 and their implications. Compares factors for several species groups and shows their use in estimating growing stock cut for pulpwood and saw logs.
Discusses recent Minnesota forest industry trends; timber removals for industrial roundwood in 1973; production and receipts in 1973 of pulpwood, saw logs, and other industrial roundwood products. Shows trends in pulpwood and veneer log production and compares saw log production in 1960 and 1973. Discusses primary wood-using mill residue and its disposition.
Discusses 1977 pulpwood production and receipts and recent production in the Lake States and Central States. Shows pulpwood production in the Lake States (Michigan, Minnesota, and Wisconsin) by species for each county and compares production by Forest Survey Unit with that of previous years. Presents 1977 pulpwood production and receipts data by state for Central...
The volume of timber harvested from Minnesota tax-forfeited land increased from about 145,000 cord equivalents in 1960 to 235,000 cord equivalents in 1975. Actual prices paid for stumpage decreased slightly in the 1960's and increased in the 1970's. However, in deflated dollars, stumpage prices decreased slightly throughout the period.
A collection of 12 papers describing the need, design, calibration database, potential diameter growth function, crown ratio, modifier, and mortality functions, as well as a diameter growth allocation rule, management algorithms, computer program, tests, and Lake State climate during calibration.
Examination of black walnut seedlings grown in forest and field soils showed all root systems were infected with mycorrhizae; the amount of infection was influenced by treatments. Mean height and dry weight of tops and roots were greater for seedlings grown in forest than field soil. Seedling height growth was not increased by disturbing either soil; but, root dry...
Quantifies the effect of spacing on branch diameter, number of branches, and knot surface in a red pine plantation
Presents 18 papers concerning recent research in forest genetics, physiology, and allied fields. Species groups discussed include pine, spruce, and birch.
Nests were built in five species of high shrubs in four trembling aspen forests of northern Minnesoa. Nest densities ranged between 0.5 and 3.0 per acre and were positively related to the abundance3 of large (>1.2-cm diameter) shrub stems.
Pulpwood production in the Lake States - Michigan, Minnesota, and Wisconsin - advances from 4.74 million cords in 1977 to 4.91 millions cords in 1978. Pulpwood production is shown by county and species group for these three States
Summer moisture contents and factors for converting fresh plant weights to ovendry biomass estimates are presented for some herbs, mosses, and small shrubs found in the upland forest stand of northeastern Minnesota.
Compares rate-response curves of some typical Lake States hardwoods to triclopyr. Estimates the persistence and mobility of triclopyr in forest soil. Evaluates the safety of triclopyr to white spruce.
Illustrates and describes the visual deficiency symptoms for N, P, K, Ca, Mg, and S in sugar maple, red maple, white ash, and paper birch seedlings. Effects of these deficiencies on the development and nutrient composition of seedlings are also examined.
Provides metric site index equations, tables, and curves for nine Lake States timber species.
Five hybrid poplar clones were presented to 16 penned white-tailed deer on a feeding board over a 3-day period in September, 1978. A definite order of preference was observed over a 3-hour period fore each of 3 trials. Over a longer period (8-24 hours), all 5 clones were completely consumed.
The fourth inventory of Minnesota's Aspen-Birch Unit shows solid gains in growing-stock and sawtimber volumes between 1962 and 1977, but a 13% decline in commercial forest area. This report gives statistical highlights and contains detailed tables of forest area a well as timber volume, growth, mortality, ownership, and use.
Deer migrations and home range traditions indicated that home range location is determined more by early social experience, learning, and tradition than by an innate ability to select the best habitat. Different deer preferred the same or similar habitat but such selection was a secondary influence on home range location.