Main Title |
Canopy Reflectance of Soybean as Affected by Chronic Doses of Ozone in Open-Top Field Chambers. |
Author |
Cure, W. E. ;
Nusser, S. M. ;
Heagle., A. S. ;
|
CORP Author |
North Carolina State Univ. at Raleigh. ;Iowa State Univ., Ames. Dept. of Statistics.;Corvallis Environmental Research Lab., OR. |
Publisher |
c1988 |
Year Published |
1988 |
Report Number |
EPA/600/J-88/516; |
Stock Number |
PB90-232323 |
Additional Subjects |
Reflectance ;
Soybeans ;
Ozone ;
Optical measurement ;
Yield ;
Plant growth ;
Estimates ;
Field tests ;
Reprints ;
Air pollution effects(Plants) ;
Dose response relationships
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB90-232323 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
The relationship between canopy reflectance and ozone (O3) treatment was investigated in a field experiment with soybean growing in 3-m diameter, 2.4-m high open-top exposure chambers. The objectives were to develop an understanding of the pattern of reflectance changes induced by this air pollutant and to investigate how the changes might ultimately be related to yield. Correlations were obtained between the reflectance data and visual estimates of non-green leaf area, a widely-used technique for rating pollutant injury. Analysis of reflectance spectra taken in early September, early October, and mid-October showed O3 treatments to be highly correlated with reflectances at visible wavelengths and at near-infrared wavelengths up to about 720 nm. Early leaf senescence caused by O3 was easily measured by reflectance changes. (Copyright (c) 1988 American Society for Photogrammetry and Remote Sensing.) |
Supplementary Notes |
Pub. in Photogrammetric Engineering and Remote Sensing v54 p499-504 1988. Prepared in cooperation with Iowa State Univ., Ames. Dept. of Statistics. Sponsored by Corvallis Environmental Research Lab., OR. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Canopy Reflectance of Soybean as Affected by Chronic Doses of Ozone in Open-Top Field Chambers. |
Category Codes |
68A; 57H |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
021125131 |
Origin |
NTIS |
Type |
CAT |