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. 143
... yield for stands of differing initial character , future management , and time of harvest . 4.2 Prediction of the reduction in gross yield due to insects , disease , and other causes . 4.3 Preduction of the yield - saving associated ...
... yield for stands of differing initial character , future management , and time of harvest . 4.2 Prediction of the reduction in gross yield due to insects , disease , and other causes . 4.3 Preduction of the yield - saving associated ...
Стр. 152
... yield of losses associated with this pest by application of expected mortality to gross - yield information ( Section 4.1 ) . 4.22 White pine weevil injury causes both volume and quality loss . Foresters have long been aware of the ...
... yield of losses associated with this pest by application of expected mortality to gross - yield information ( Section 4.1 ) . 4.22 White pine weevil injury causes both volume and quality loss . Foresters have long been aware of the ...
Стр. 163
... Yield data will be reduced to a number of discrete classes . Net yield without additional pest control or management is determined by the stand and pest conditions , and the number of years to harvest . A table will be prepared to show ...
... Yield data will be reduced to a number of discrete classes . Net yield without additional pest control or management is determined by the stand and pest conditions , and the number of years to harvest . A table will be prepared to show ...
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