Planning Research for Resource DecisionsIowa State University Press, 1970 - Всего страниц: 183 Scientists, research, and resource management. Planning research programs. Problem analysis and project planning. Scientific methods and models. Defining the study objective. Selecting study procedures. Preparing written study plans. Maintaining essential research records. Writing for publication. Being your own editor. Final throughts. An exhibit of research plans. |
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Стр. 42
... average lumber volumes for each tree - diameter class . Perhaps it was a forester who observed later that on the better sites , the predicted lumber yields were consistently too low . The taller trees on these sites gave greater than ...
... average lumber volumes for each tree - diameter class . Perhaps it was a forester who observed later that on the better sites , the predicted lumber yields were consistently too low . The taller trees on these sites gave greater than ...
Стр. 65
... average diameters of the two groups . The test gives only a relative measure of how large the difference between averages of the two groups appears to be - based on the relative differences in variation among individuals in a group vs ...
... average diameters of the two groups . The test gives only a relative measure of how large the difference between averages of the two groups appears to be - based on the relative differences in variation among individuals in a group vs ...
Стр. 154
... Average losses over large geographic areas , however , can be estimated . Such average loss figures are of use in planning activities covering broad areas , because investment is spread over enough stands so that the average loss is ...
... Average losses over large geographic areas , however , can be estimated . Such average loss figures are of use in planning activities covering broad areas , because investment is spread over enough stands so that the average loss is ...
Содержание
SCIENTISTS RESEARCH AND RESOURCE MANAGEMENT | 3 |
PLANNING RESEARCH PROGRAMS | 13 |
PROBLEM ANALYSIS AND PROJECT PLANNING | 25 |
Авторские права | |
Не показаны другие разделы: 6
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alternatives areas authorship average blister-rust infection clientele condition class considered cost decision-makers define dependent determine develop eastern white pine efficient estimate evaluating even-aged example experience factors fatal infection FER-NE Forestry Grammar of Science gross yield growth rates hardwoods harvest hypothesis important independent variables inductive reasoning infection rate initial stand condition injury rate management and pest-control manuscript measure methods needed NEFES noun number of injuries observed overstory pest pest-control activities prediction problem analysis profitable project plan pruning publication punched cards rate of fatal reader records relationship research planning resource manager resource research sample scientific scientific methods scientists selected shortleaf pine significant solve specific statistical study objective study plan study procedures stumpage timber tree U.S. Forest Service various verb volume growth volume loss weevil injury white pine production white pine stands writing