||Altitudinal Variation of Chlorophyll Concentration and Reflectance of the Bark of 'Populus tremuloides.'
Covingto, William W. ;
||New Mexico Univ., Albuquerque. Dept. of Biology.
||OWRR-A-039-NMEX; 04977,; A-039-NMEX(1)
Plant ecology ;
Forest trees ;
Plant physiology ;
Plant tissues ;
Sangre de Cristo Mountains ;
New Mexico ;
Populus tremuloides ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
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.