Treesearch

Because there is very little difference in the stacked unpeeled volumes of most native trees cut for pulpwood in the Lake States, a generalized cordwood table can be used. Tech. Note 202 (Aug. 1943) presented a table for trees from 6 to 14 inches d.b.h. and 1 to -7 bolts in usable height. Because of the demand for similar information for both smaller and larger trees, a new table of greater range has been prepared.

The disturbing increase in acreage of abandoned land in the Central States has heightened interest in the region's few remnants of old-growth hardwood forest. Studies are being made to determine what kinds of trees originally grew on different kinds of soil, what was the original character of the soil, how many trees grew on an acre, and how large the trees were at maturity.

Trees of sprout origin are generally considered inferior to trees of seedling origin for the production of sawtimber, owing to form defect and the tendency for decay to enter through the parent stumps. Since most of the valuable hardwood species sprout readily over large areas of the northern hardwood region, clear-cutting of immature stands has resulted in the establishment of stands composed mainly of sprouts. As the result of repeated coppicing, many hardwood stands are practically worthless for the production of other than low-grade forest products. Timber stand improvement on a large...

What to do with the brush after logging? This question has been debated in Wisconsin throughout the entire history of lumbering. In the popular mind, the occurrence of severe forest conflagrations has invariably been associated with the presence of logging slash on the ground. The occurrence of vast forest fires was noted by explorers and fur traders long before logging began on a commercial scale in the Lake States. The greatt historic fires — like the Peshtigo fire which occurred October 9, 1871 in which 1500 lives were lost and 1,280,000 acres were burned over or the Phillips fire of...

The erosion of soils through the action of rain water and that from melting snow is almost universal in its occurrence. The gradual erosion and levelling of any country is inevitable, being a process which has gone on as long as there has been free water on the face of the earth. Nevertheless, this process is an extremely slow one where the landscape is naturally well covered by vegetation, and is greatly speeded by every mechanical disturbance of the earth's surfaces resulting from man's activities; and under certain conditions becomes needlessly destructive. The loss of fertile surface...

If white pine forests are to be made an important source of timber in the state either through planting or the proper handling of stands already established, it is essential to have the facts regarding the commercial possibilities of this tree. The facts which must be ascertained first of all are, how long does it take white pine to become merchantable, and what are the possible yields and money returns that may be expected when it has been grown? With this information as a background, one naturally wants to know how much it costs to plant, the kind of land best suited for the growth of...

The knowledge of the rate at which trees grow in virgin forests, after clear cutting and under selective logging, is indispensable in any forest calculations or forest practice. The enactment of the Forest Crop Law, which brought under its operation about 175,000 acres of cut-over land during the first year, the example set by several progressive lumbermen in selective logging, and the general public interest in the future of the cut-over land focused attention acutely on what may be expected from cut-over land in the way of growth and returns in the course of the next few decades.

Damping-off is the commonest English name for a symptomatic group of diseases affecting great numbers of plant species of widely separated phylogenetic groups. It is commonly used for any disease which results in the rapid decay of young succulent seedlings or soft cuttings. Young shoots from underground rootstocks may also be damped-off before they break through the soil.