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. 152
... loss involves several factors . The first of these is the number of years to harvest , which will determine the proportion of stand individuals that will be unmerchantable by harvest . For instance , a stand within 20 years of harvest ...
... loss involves several factors . The first of these is the number of years to harvest , which will determine the proportion of stand individuals that will be unmerchantable by harvest . For instance , a stand within 20 years of harvest ...
Стр. 153
... loss was estimated by subtracting observed tree volume from the volume of an unweeviled tree of equal total height and dbh . Volume loss was correlated with dbh and a weevil injury summation ( number of injuries weighted by height ) ...
... loss was estimated by subtracting observed tree volume from the volume of an unweeviled tree of equal total height and dbh . Volume loss was correlated with dbh and a weevil injury summation ( number of injuries weighted by height ) ...
Стр. 154
... loss per M.B.F. ( Study 4 ) . The resulting relationship will be used to predict the QI loss associated with various rates of weevil injury . Quality loss due to weevil injuries = q ( rate of weevil injury . ) . These two studies ...
... loss per M.B.F. ( Study 4 ) . The resulting relationship will be used to predict the QI loss associated with various rates of weevil injury . Quality loss due to weevil injuries = q ( rate of weevil injury . ) . These two studies ...
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