Treesearch

The purpose of this paper is to provide a practical guide to the management of northern hardwoods - principally beech, birch, and maple-in the Northeast. The guide was designed to provide the kind of information that is needed not only for long-term management planning, but also for short-term silvicultural prescriptions for specific timber stand conditions. The guide is limited to silvicultural recommendations primarily for timber production. However, secondary forest uses such as recreation, water, and wildlife habitat are considered wherever pertinent.

Between 1959 and 1967 a study of d.b.h. growth rates was made on individual hardwood trees near Parsons, W. Va. From this study, we obtained information that will help foresters to predict growth. We learned that the correlation of the more easily used crown classification with d.b.h. growth is as good as or better than the correlation of vigor classes with d.b.h. growth.

Urbanization, particularly in the crowded Northeast, has created a new environment. Asphalt and concrete have replaced hundreds of square miles of soil, buildings have replaced trees on much of the land, and sewers have replaced streambeds in many areas. As a result, the hydrology of this land is changing rapidly. To determine the effects of this expanding urbanization on forested watersheds, the Northeastern Forest Experiment Station has studied streamflow records of forested and urbanized watersheds. This paper is a report of that study.

A report on results of a study to develop a means for estimating specific gravity and wood moisture content of white pine. No strong relationships were found by using either the single or combined factors of age and dimensional stem characteristics. Inconsistent patterns of specific gravity and moisture over height in tree are graphically illustrated.

Describes a large-diameter, heavy-duty soil sampler that makes it possible to obtain long, relatively undisturbed sample columns from stony, root-filled forest soils. The resultant samples include the roots, root channels, stones, and macro-voids common to forested soils.

When we arrayed camping frequencies in order from the lowest to the highest number of days spent camping per year we found that half of the campers do much more than half of the camping. Campers in this heavy half consistently camp more, year after year, and are increasing their annual participation as well. Heavy-half campers have larger investments in camping equipment; and their annual camping expenditures are nearly three times that of the light half. Heavy-half campers are not strongly bound by preferences or "brand" loyalties for specific types of campgrounds; and therefore, they are...

Data from the recent Forest Survey of New York reveal a 13-percent increase in commercial forest land area, a 12-percent increase in the cubic-foot volume of growing stock, and a 4-percent decrease in the board-foot volume of growing stock during the 18-year period between surveys.

A Scotch pine provenance study conducted in northern Michigan revealed important differences in height growth and foliage color among seedlings from 83 European sources. Seed from southern European sources produced seedlings with the best fall foliage coloration. Height growth was fastest among seedlings from sources with latitudes like that of the Michigan planting site.

The recent Forest Survey reveals that there has been a 933,000-acre increase in commercial forest land, a 32-percent increase in the cubic-foot volume of growing stock, a 30-percent increase in the board-foot volume of sawtimber, and an excess of net growth over removal since the 1952 inventory.

Results with the LaMotte-Morgan method for determining soil pH-or the solution modification of this method-usually agreed fairly well with the results from using a pH meter, the recognized standard. Results obtained with the Soiltex and Hellige-Truog methods often deviated somewhat from the pH meter readings; and the Hydrion papers and the Kelway pH tester often gave results that were considerably different.