jour092509
Join the Club
Club Outdoors is where you can keep up with Star Tribune experts and others in Minnesota who love fishing, hunting and other outdoor recreation. Click here to access our outdoors newsletter, the Club Outdoors Facebook Fan Page, Twitter and more.
Stay in touch via:
Blog Topics
Newsletters
Home | Sports | Club Outdoors
Outdoors Journal: Fall foliage colors
Print this story
E-mail this story
Save to del.icio.us
Share on Facebook
Share on DiggMore from Club Outdoors
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
Recent Club Outdoors stories
Arden Hills viewing spot gets makeover - September 24, 2009
Arden Hills viewing spot gets makeover - A group of Arden Hills volunteers is working to restore an area to watch wildlife to its former luster. More
Join the discussion: Your Voices is a group blog featuring unique perspectives from members of your community. Find commentary on current events, public issues and day-to-day life in Minnesota.
Recent posts
  Open positions!A new career awaits. Look through thousands of listings to find your new job. Start now! Get A ProfessionalFind home maintenance, car repair, legal advice, cleaning, and more in the Yellow Pages. Go now! |
Win tickets to see The Hidden Cameras with Gentlemen Reg at 7th Street Entry.Vita.mn presents The Hidden Cameras with Gentlemen Reg at 7th Street Entry on Dec. 2. |
Comment on this story | Be the first to comment | Hide reader comments