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Free images related to Fall

Note on large files: Very large files may be bigger than your screen.
Right click on any portion of the image showing and chose "save as".

 


  Did you know....

that fall, or autumn, represents the transition from summer into winter.  This occurs in September in the Northern Hemisphere and in March in the Southern Hemisphere.  

 


"A woodland in full colour
 is as awesome as a forest fire, 
in magnitude at least, 
but a single tree 
is like a dancing tongue of flame 
to warm the heart." 

- Hal Borland -

 

Why are the fall leaves of deciduous trees so colourful in the fall?  

The leaves of plants contain colour three pigments:  Cholorphyll, Carotenoids and Anthocyanins.  We'll discuss each of these in turn.

Let's first recall how leaves act as nature's food factories.  Trees take water from the ground through their roots.  They also collect a gas called carbon dioxide from the air.  Trees then use sunlight to turn the water and carbon dioxide into oxygen and glucose.  This is wonderful for humans, since we need the oxygen gas, known as air, to breathe!  The glucose is a kind of sugar that the tree uses as food for energy and growing.  The process of turning water and carbon dioxide into oxygen and glucose is called "photosynthesis".

A chemical named "chlorophyll" helps to make photosynthesis occur.  It is chlorophyll that gives plants their green colour.

As fall approaches, trees begin to get ready for winter when there is not enough water or light for photosynthesis to continue.  While during the summer's growing season, chlorophyll is being produced and broken down making the leaves appear green, in the fall however, the food factories end production and all the chlorophyll is destroyed.

When the green pigment disappears, we now see the Carotenoids and Anthocyanins present in the leaves.

Carotenoids are present throughout the growing season.  They produce yellow, orange and brown colours in other things besides leaves as well - corn, carrots, daffodils, etc.  Most Anthocyanins are produced in the fall in response to bright light and excess plant sugars in the leaves.  Anthocyanins give colour to things such as cranberries, blueberries, cherries, etc.

In some trees, like the Maples, glucose is sometimes trapped in the leaves.  The cool nights of fall cause the glucose to turn into a red colour.  A dry fall season will result in dull, pale colours, while a rainy season will increase the chance of sharp, brilliant colours.  

Recap:  When chlorophyll is no longer present, the carotenoids and anthocyanins are unmasked and we see the colours.

 

 

 

 

In addition to the images below, please check out the Tree Categories.  
There are more colourful images posted under each tree specimen - especially the Maples.

 

 

Colourful fall Maple trees beside road.

Autumn - 1

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Yellow orange red Maple trees in autumn.

Autumn - 2

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 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Country road through yellow fall Maple trees.

Autumn - 3

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Yellow Maple trees in autumn forest.

Autumn - 4

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Yellow leaves of fall Maple forest.

Autumn - 5

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

maple trees with fall yellow leaves

Fall - 1  Yellow Maple Trees

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3264 x 2448 -  For the full-size resolution of this image click here.

 

 

canopy of maple trees in fall with yellow leaves

Fall - 2  Yellow Maple Trees

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3264 x 2448 -  For the full-size resolution of this image click here.

 

 

tall old maple tree with yellow leaves

Fall - 3  Yellow Maple Trees

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 Large - 3264 x 2448 -  For the full-size resolution of this image click here.

 

 

yellow maple leaves in fall

Fall - 4  Yellow Maple Trees

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456 -  For the full-size resolution of this image click here.

 

 

yellow maple leaves on branches

Fall - 5  Yellow Maple Trees

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456 -  For the full-size resolution of this image click here.

 

 

tall maple trees in fall with yellow leaves

Fall - 6  Towering Yellow Maple Trees

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456 -  For the full-size resolution of this image click here.

 

Fall Image Pages   [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]

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The Seasons....

 

 

 

 

 

 

 

"Spring is the time 
of year 
when it is summer 
in the sun and 
winter in the shade."

~ Charles Dickens ~

 

 

 

 

"To everything,
 there is a season, 
and a time for every purpose under heaven:  
A time to be born, 
and a time to die."

~ Ecclesiastes 3:1 ~

 

 

 

 

 

 

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