Main Title |
Physiography and Forest Types of the Western United States (Chapter 1). |
Author |
Olson., R. ;
|
CORP Author |
NSI Technology Services Corp., Corvallis, OR.;Corvallis Environmental Research Lab., OR. |
Publisher |
1990 |
Year Published |
1990 |
Report Number |
EPA/600/D-90/155; |
Stock Number |
PB91-129726 |
Additional Subjects |
Air pollution ;
Forestry ;
Geomorphology ;
Mountains ;
Exposure ;
Topography ;
Environmental transport ;
Moisture ;
Climatic changes ;
Rocky Mountains ;
Western Region(United States)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-129726 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
44p |
Abstract |
The eleven western states occupy about 40% of the land area of the conterminous United States. The West is characterized by extreme relief with massive north-south oriented mountain ranges separated by basins, valleys, and plateaus. This physiography is an important determinant of the exposure and response of western forests to air pollution. Topographic modification of regional climate determines which areas can support forests. Patterns of relief influence the distribution of pollutant sources relative to forests and the transport of pollutants from source areas, so pollutant loading to western forests is also influenced by topographic patterns. The chapter presents a broad overview of western physiography and forest types as a framework for later chapters. Discussion of patterns within forest types focuses on topographic and moisture relationships. |
Supplementary Notes |
Pub. in Effects of Air Pollution on Western Forests, 1990. Sponsored by Corvallis Environmental Research Lab., OR. |
NTIS Title Notes |
Book chapter. |
Category Codes |
48D; 68A |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
103919850 |
Origin |
NTIS |
Type |
CAT |