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. 150
... area basis . Losses from other causes are generally erratic in occurrence and of less importance . More general estimates of ... areas . Third , relative crown size and dead length of pine are probably important factors within the stand ...
... area basis . Losses from other causes are generally erratic in occurrence and of less importance . More general estimates of ... areas . Third , relative crown size and dead length of pine are probably important factors within the stand ...
Стр. 154
... 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 , in fact , likely to be experienced ...
... 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 , in fact , likely to be experienced ...
Стр. 159
... areas are both unknown , however . These ratios are not amenable to objective prediction with the present level of knowledge in forest economics . Therefore , three future stumpage value - price ratios will be proposed and employed in ...
... areas are both unknown , however . These ratios are not amenable to objective prediction with the present level of knowledge in forest economics . Therefore , three future stumpage value - price ratios will be proposed and employed in ...
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