outdoors
Outdoors Journal: Fall foliage colors
- Article by: JIM GILBERT
- Updated: September 24, 2009 - 7:25 PM
- 0
- comments
resize text 
- buy reprints
JOURNAL
FALL FOLIAGE COLORS
There are some beautiful fall colors now being seen on the leaves of deciduous woody plants. Nowhere in the world are the fall colors more rich and varied than in the climax woodlands of the United States east of the Rocky Mountains. Each September and October we marvel at the color of the many woody plants, sadly acknowledging that it is only a brief pleasure.
The fall coloring is the result of chemical processes in the leaves as the season changes from summer to winter, with many leaves turning before the first frost. Because of the decreasing amount of daylight and lowering of average daily temperatures, leaves stop their food- making process. As they do, the chlorophyll breaks down, the green color disappears, and the yellow pigment that was covered up becomes visible, giving the leaves part of their fall splendor. At the same time, other chemical changes occur and cause the formation of additional pigments that vary from yellow to red to blue.
Some pigments give rise to the red and purple fall colors of the sumacs and dogwoods, but others give the sugar maple its brilliant orange and fiery red. The quaking aspen, birch, green ash and basswood show yellow and golden-yellow. Familiar trees with red or scarlet leaves are red maple, Amur maple and red oak. Within the same species, the degree of color might vary from tree to tree or branch to branch.
JIM GILBERT
- 0
- comments
- resize text
- buy reprints
Click here to send us your prize catch – and to see what others are catching on the region's waters.
ADVERTISEMENT
| NY Mets - LP: J. Hefner | 2 | FINAL |
| Chicago Cubs - WP: S. Feldman | 8 |
| Seattle - LP: O. Perez | 4 | FINAL |
| Cleveland - WP: C. Perez | 5 |
| Toronto - LP: B. Morrow | 2 | FINAL |
| NY Yankees - WP: D. Phelps | 7 |
| Cincinnati - WP: B. Arroyo | 10 | FINAL |
| Philadelphia - LP: K. Kendrick | 0 |
| Chicago WSox - LP: N. Jones | 9 | FINAL |
| LA Angels - WP: R. Coello | 12 |
| Tampa Bay - WP: A. Torres | 10 | FINAL |
| Baltimore - LP: J. Johnson | 6 |
| Houston | 1 | Bottom 7th Inning |
| Pittsburgh | 2 |
| Los Angeles | 1 | Bottom 8th Inning |
| Atlanta | 3 |
| Boston | 7 | Bottom 5th Inning |
| Minnesota | 5 |
| Arizona - WP: B. McCarthy | 1 | FINAL |
| Miami - LP: T. Koehler | 0 |
| Milwaukee | 4 | Bottom 7th Inning |
| St. Louis | 4 |
| Detroit | 2 | Top 4th Inning |
| Texas | 6 |
| San Francisco | 1 | Top 5th Inning |
| Colorado | 4 |
| Washington | 0 | Bottom 5th Inning |
| San Diego | 1 |
| Kansas City | 1 | Top 2nd Inning |
| Oakland | 0 |
| New York | 47 | 3rd Qtr 11:46 |
| Indiana | 55 |
| Columbus | 1 | FINAL |
| Toronto FC | 0 |
| Portland | 2 | FINAL |
| Vancouver FC | 2 |
| Chicago | 0 | FINAL |
| Philadelphia | 1 |
| New England | 0 | 2nd Half |
| Houston | 0 |
| FC Dallas | 9:30 PM |
| Seattle |
| Colorado | 9:30 PM |
| San Jose |
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
inside the StarTribune
-
425 Portland Av. S.
Minneapolis, MN 55488
(612) 673-4000
- Company
- Subscriber Services
- Website
- Buy Ads
- Store
- Connect with Us
© 2013 StarTribune. All rights reserved.
StarTribune.com is powered by Limelight Networks
Newspaper Subscriptions
eEdition
RSS
Newsletters