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. 153
... height , above the first 4-8 feet.6 Provisionally , this method of prediction will be employed in the analysis ... height and dbh . Volume loss was correlated with dbh and a weevil injury summation ( number of injuries weighted by height ) ...
... height , above the first 4-8 feet.6 Provisionally , this method of prediction will be employed in the analysis ... height and dbh . Volume loss was correlated with dbh and a weevil injury summation ( number of injuries weighted by height ) ...
Стр. 182
... height and age at dbh of at least three dominant , essentially unweeviled white pine within , or in the vicinity of , the 50 - tree group . Height and age figures will be averaged over the three trees , 8 years added to age at dbh , and ...
... height and age at dbh of at least three dominant , essentially unweeviled white pine within , or in the vicinity of , the 50 - tree group . Height and age figures will be averaged over the three trees , 8 years added to age at dbh , and ...
Стр. 183
... height results from weeviling . Where weevil injury is severe , however , total height is definitely reduced . For sample trees where the total height - dbh relationship is obviously other than normal , tree age I will be determined and ...
... height results from weeviling . Where weevil injury is severe , however , total height is definitely reduced . For sample trees where the total height - dbh relationship is obviously other than normal , tree age I will be determined and ...
Содержание
SCIENTISTS RESEARCH AND RESOURCE MANAGEMENT | 3 |
PLANNING RESEARCH PROGRAMS | 13 |
PROBLEM ANALYSIS AND PROJECT PLANNING | 25 |
Авторские права | |
Не показаны другие разделы: 6
Часто встречающиеся слова и выражения
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