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As the weather turns cooler, the trees will once again put on their show of brightly colored leaves. Many weather factors play into how intense the colors will be and how long the vivid leaves will be around.
After the leaves are fully developed on trees, they begin making and storing the carbohydrates that will be needed for the new tree growth in the following year. As the season progresses, in late summer or early fall, the trees enter a growth process that produces the colorful fall leaves, according to Usna.usda.gov.
As the tree grows throughout the spring and summer months, chlorophyll is constantly replaced in the leaves. The chlorophyll gives the leaves their green color. As the nights get longer in the early fall, the cells near the juncture of the leaf and stem divide rapidly but do not expand. This action of the cells form a layer called the abscission layer. The abscission layer then blocks the the transportation of materials from the leaf to the branch and from the roots to the leaves. As the chlorophyll is blocked from the leaves, it disappears completely from them. The lack of chlorophyll allows the yellow (xanthophylls) and orange (carotenoids) pigments to be visible. The red and purple pigments (anthocyanins) are manufactured from the sugars that are trapped in the leaf. These pigments in leaves are responsible for the vivid color changes in the fall.
Temperature, sunlight and soil moisture all play a role in how the leaves will look in the fall.
Travel to these locations this fall to take in some of the most breathtaking displays of fall foliage, according to Travelerhubs.hubpages.com.
Charlottesville, Va., has oak trees that turn vibrant shades of red in the fall.
Milford, Pa., boasts golden hues of trees along the Delaware River.
Camden, Maine ,has trees of all colors that can be seen mirrored in the waters.
Sevierville, Tenn., has the Great Smokey Mountains in the east that are painted with brilliant fall foliage.
Glenwood Springs, Colo., shows off the fall foliage and snow-capped mountains in early October.
If you love to see the beautiful colors of fall, be sure to visit a tree-filled area near you this fall.
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