Author: Stanley M. FilipPublisher:
ISBN:
Category : Logging
Languages : en
Pages : 20
Book Description
Harvesting Costs & Returns Under 4 Cutting Methods in Mature Beech-birch-maple Stands in New England
Author: Stanley M. FilipPublisher:
ISBN:
Category : Logging
Languages : en
Pages : 20
Book Description
Handbook of Energy Utilization In Agriculture
Author: David PimentelPublisher: CRC Press
ISBN: 1351089412
Category : Science
Languages : en
Pages : 552
Book Description
The aim of this volume is to collect and present available data, both published and unpublished, on energy use in agriculture and forestry production. Energy analyses for some sciences such as ecology are not new, but their applications to agriculture started in 1973. These analyses have grown rapidly in number and complexity. This handbook is intended for agriculturalists and others concerned with energy use in crop, livestock, and forestry production.
A Comparison of Four Survey Techniques Used in Outdoor Recreation Research
Author: Elwood L. ShaferPublisher:
ISBN:
Category : Recreational surveys
Languages : en
Pages : 420
Book Description
S2Because of the great and growing interest in outdoor recreation, many studies are being made by private and public agencies that need information for planning use of land and facilities for recreational purposes. In these studies much attention is being given to the people who use recreational facilitieswho they are; where they come from; what they like; what they want; how much they are willing to spend. Many types of surveys are being used in studying these people. The main question in planning a survey of this sort is: What survey technique can be used that will provide the most reliable and valid results at the least cost? To get an answer that we could use in our recreation research program, we made a study of four different survey techniquesa personal interview, a handout questionnaire, an immediate mail questionnaire, and a delayed mail questionnaire. Results show that the delayed mail survey, conducted 3 months after the camping experience, gets the best results at the least cost. Our study is described here for the benefit of other research workers in outdoor recreation.S3.
Monthly Catalog, United States Public Documents
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1716
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
USDA Forest Service Research Paper NE.
Author: Northeastern Forest Experiment Station (Radnor, Pa.)Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 474
Book Description
U.S. Forest Service Research Paper NE.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 510
Book Description
Housing and Planning References
Author: Year at the Northeastern Station
Author: United States. Northeastern Forest Experiment Station, Upper Darby, PaPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 60
Book Description
Cutting and Cultural Methods for Managing Northern Hardwoods in the Northeastern United States
Author: Stanley M. FilipPublisher:
ISBN:
Category : Forest management
Languages : en
Pages : 12
Book Description
At the Northeastern Station
Author: Northeastern Forest Experiment Station (Radnor, Pa.)Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 240
Book Description