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
... 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 with blister - rust and weevil control . 4.4 ...
... 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 with blister - rust and weevil control . 4.4 ...
Стр. 152
... future blister - rust infection because it often takes this long for an infection to kill the tree . On the other hand , a stand 50 years from harvest may lose 30 percent of its present stocking by future infection if the rate of ...
... future blister - rust infection because it often takes this long for an infection to kill the tree . On the other hand , a stand 50 years from harvest may lose 30 percent of its present stocking by future infection if the rate of ...
Стр. 169
... future , together with several alternate levels of pest control . This would indicate how much supply could be increased by altering pest - control investment in the future and provide a guide to the amount of future pest - control ...
... future , together with several alternate levels of pest control . This would indicate how much supply could be increased by altering pest - control investment in the future and provide a guide to the amount of future pest - control ...
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