Record Display for the EPA National Library Catalog


Main Title Quality Assurance Aspects of the Joint USA - Canada North American Sugar Maple Decline Project.
Author Burkman, W. G. ; Millers, I. ; Lachance., D. ;
CORP Author NSI Technology Services Corp., Radnor, Pa. ;Northeastern Forest Experiment Station, Durham, NH. ;Centre de Forestier des Laurentides, Sainte-Foy, (Quebec).;Corvallis Environmental Research Lab., OR.
Publisher 1990
Year Published 1990
Report Number EPA/600/D-90/083;
Stock Number PB90-246455
Additional Subjects Research projects ; Maple trees ; Growth ; United States ; Canada ; Quality assurance ; Measurement ; Losses ; Leaves(Botany) ; Discoloration ; Acer saccharum ; Sugar maple trees ; Joint ventures
Library Call Number Additional Info Location Last
NTIS  PB90-246455 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 17p
The North American Sugar Maple Decline Project was implemented in 1988 in response to concerns about the condition of sugar maple (Acer saccharum Marsh.) in the United States and Canada. Data collection for the project involved at least 15 federal, state, and provincial crews from seven states and four provinces. The response measurements included four subjective measurements of tree crown conditions: branch dieback, foliage transparency, foliage discoloration, and dwarfed foliage. The results from the project show that quality assurance activities can quantify the quality of data for subjective measurements. In addition, quality assurance procedures can improve data quality over time.