Full Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Altitudinal Variation of Chlorophyll Concentration and Reflectance of the Bark of 'Populus tremuloides.'
Author Covingto, William W. ;
CORP Author New Mexico Univ., Albuquerque. Dept. of Biology.
Year Published 1972
Report Number OWRR-A-039-NMEX; 04977,; A-039-NMEX(1)
Stock Number PB-228 873
Additional Subjects Plant ecology ; Forest trees ; Plant physiology ; Mountains ; Photosynthesis ; Altitude ; Plant tissues ; Reflection ; Chlorophylls ; Sangre de Cristo Mountains ; New Mexico ; Theses ; Populus tremuloides ; Corticular photosynthesis
Library Call Number Additional Info Location Last
NTIS  PB-228 873 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 35p
Abstract Chlorophyll concentration and reflectance of bark samples of Populus tremuloides Michx. growing at various elevations in the Sangre de Cristo mountain range of New Mexico indicate that the appearance of greener barked trees at higher elevations is due to the reflectance characteristics of a bloom of dead periderm cells and not to increased chlorophyll concentrations. Chlorophyll concentrations in aspen bark were, in fact, inversely correlated with altitude.
NTIS Title Notes Master's thesis.
PUB Date Free Form May 72,
Category Codes 2F; 6F; 6C; 57H; 48D
NTIS Prices PC A03/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326578458
Origin NTIS
Type CAT