| Main Title |
The projection of response of trees and forests to acidic deposition and associated pollutants / |
| Author |
Kiester, A. Ross. ;
Ford, E. D. ;
Avery, A. ;
Gay, C. ;
Droessler., T.
|
| Other Authors |
|
| CORP Author |
NSI Technology Services Corp., Corvallis, OR. ;Forest Service, Washington, DC. ;Washington Univ., Seattle. Center for Quantitative Science.;Corvallis Environmental Research Lab., OR. |
| Publisher |
U.S. Environmental Protection Agency, Environmental Research Laboratory, |
| Year Published |
1990 |
| Report Number |
EPA/600/3-90/096 |
| Stock Number |
PB91-136572 |
| Additional Subjects |
Precipitation(Meteorology) ;
Acidification ;
Forest trees ;
Response ;
Plant physiology ;
Mathematical models ;
Growth ;
Deposition ;
Ozone ;
Morphology ;
Vegetation ;
Dosage ;
Genetics ;
Variations ;
Quality assurance ;
Nutrients ;
Stochastic processes
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-136572 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
222 pages : illustrations ; 28 cm |
| Abstract |
In 1986 the National Acid Precipitation Assessment Program (NAPAP) established the Forest Response Program (FRP) to assess the effects of acidic deposition and associated pollutants on forests. Modeling studies were developed in parallel with both field studies on the pattern and trends of forest condition and physiological studies of seedlings, saplings, and branches of mature trees. The goals of the modeling effort were to simulate the dynamics of the processes by which acidic deposition and ozone affect tree physiological processes and therefore lead to changes in growth. Results from models of the physiological function of leaves, branches, roots, xylem, and canopies are presented here. These models illustrate three aspects of the dynamics of these processes. First, growth and the effects of pollutants are stochastic processes; that is, they vary randomly over time. The models help to account for the large amount of variability seen in normal field conditions. Second, some physiological processes can compensate for the effects of acidic deposition or ozone. Third, pollutants may have more than one effect on tree growth, and these effects may be synergistic. The potential nonlinearities and the variabilities demonstrated by these models lead to the conclusions that forest health effects may be developing that are not yet apparent; and for regulation of acidic deposition and associated pollutants to have a detectable effect, regulatory changes will probably have to be of substantial magnitude. |
| Notes |
Microfiche. |
| Place Published |
Corvallis, OR : |
| Supplementary Notes |
Prepared in cooperation with Forest Service, Washington, DC., and Washington Univ., Seattle. Center for Quantitative Science. Sponsored by Corvallis Environmental Research Lab., OR. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Environmental Research Laboratory. ; USDA Forest Service. ; University of Washington. ; NSI Technology Services Corporation. |
| PUB Date Free Form |
1989. |
| NTIS Prices |
PC A10/MF A02 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20001222134031 |
| Language |
eng |
| Origin |
NTIS |
| Type |
MERGE |
| OCLC Rec Leader |
01352cam 2200325Ka 45170 |
