Hasil untuk "Forestry"

College of Materials and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China, Rui Ma, Key Laboratory of State Forestry and Grassland Administration on Highly-efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming Yunnan, 650224, China et al.

MTC4, Forestry and Logging Equipment

This SAE standard describes a procedure and the terminology for identifying and classifying mobile forestry machines which may be portable or self-propelled. Identification is determined by endpoint usage as intended by the manufacturer's design objectives. This document applies to machines that are designed for use in site preparation, planting, transporting, and processing wood and wood fiber. Specifically excluded are machines used exclusively in sawmills or wood yards, on-highway transport vehicles, and aerial vehicles.

Sarah Flick

Carol A. Ayer

Carol A. Ayer

S. W. Gentle

GEORGE W. NUNN

Herman H. Chapman

Abstract The quickest and most certain way to break down the efficiency of a technical or professional group of public servants is to establish racial, religious, or political qualifications for the group. Although any such qualifications are bad, the most insidious and vicious of all are those which are political in character. For many years the Forest Service has been largely free from political influence, at least in so far as the selection of personnel is concerned. Today there are indications that the politician has extended his greedy hand to the Forest Service. The members of no single political party are solely responsible. "Job grabbing" appears to be a common failing more or less apparent among the members of all our national political parties. Foresters the country over, irrespective of their own political party affiliations, resent this effort to break down the morale of the Forest Service. Only free men can effectively serve a free people. The American people are entitled to effective forest administration.

J. Peter Hall, L. W. Carlson, D. E. Dube

The continued use and development of the forest environment requires that it be treated in a manner that ensures sustainable development. The forest ecosystem available for commercial exploitation has been shown to be finite and human intervention on a large scale is needed to replace, renew and rehabilitate these forests. An environmental forestry research program must have as its goal a sustainable forest. To attain this, research must be conducted on the forest ecosystem, on monitoring and characterizing the forest, on protecting the forest and on renewing the forest. This constitutes the Forestry Canada program. This research will assist in the development of practices needed for the healthy functioning of the forest ecosystem, for industrial forest management, recreational forestry and the preservation of our forests for future generations. Forestry Canada has made major contributions in the whole field of environmental protection of the forest ecosystem. The examples presented here demonstrate Forestry Canada's commitment to environmentally-sound forest management practices. Those practices allow development of the forest for the benefit of all Canadians and for the forest.

Mikael Grut

Emanuel Fritz