What We Can Do About Diminishing Oak Forests

Updated on February 24, 2017
The Dirt Farmer profile image

Jill likes cooking, writing, painting, & stewardship, and studies gardening through MD Master Gardener & Master Naturalist programs.


While participating in an online seminar about oak forest regeneration this past January, I learned some good news and some bad news about oak trees in the USA.

The bad news? Oak forests are on the decline.

The good news? Those of us who own forest land can help do something about it.

Why We Need Oaks

The seminar was sponsored by the Ohio State University Extension and led by Natural Resources Specialist David Apsley, who began by discussing why oak trees are so important to our nation and our ecosystem.

Pin Oak
Pin Oak | Source

As a Nation

Because of their toughness and longevity, oaks are a symbol of strength. As such, they have been our national tree since 2004.

Oaks are also integral to our economy, their wood quality making them a sawmill staple.

Moreover, oak trees have long dominated the central hardwood forests of the eastern USA. They are also vital to the ecosystems of northern USA hardwood forests as well as the hardwood forests of Appalachia.

About 58 oak species are native to the USA.

An acorn woodpecker looks for food on a black oak tree.
An acorn woodpecker looks for food on a black oak tree. | Source

As Part of the Ecosystem

Oaks have high wildlife value. In other words, a large number of animals use oak trees for food, shelter, nesting material and as cover from predators.

According to Apsley, acorns alone are a food source for over 90 species, from bears to song birds. Moreover, insects and other animals feed on oak bark, oak wood and oak leaves. These species attract additional creatures, which feed on the feeders.

In turn, oaks depend on wildlife to distribute and plant their seeds (acorns).

Simply put, oaks are the linchpins of their ecosystems, with myriad wildlife depending upon them for survival.


Over 90 species eat acorns as a regular part of their diets.

Why Oak Forests Are Declining

To regenerate, oak forests must produce as many new oak trees as the total number of trees that either die or are harvested by landowners and the lumber industry. Unfortunately, that's not happening. The reasons? As the demand for oak wood continues unabated, so does the harvesting of oak trees. Meanwhile, oak forests experience fewer fires.

Fewer forest fires sounds like a good thing, right? But not for oak trees, which rely on fires for their regeneration.

Forest Fires and Oak Trees

Oaks are more likely to survive a forest fire than other trees.They have thick, fire-resistant bark and leathery, fire-resistant leaves. Oak seedlings also have inordinately large root balls, so they are more likely to survive a fire. They are also among the first seedlings to appear after a fire.

Forest fires destroy plants that would otherwise shade out young oaks.

What oak seedlings and saplings can't tolerate is shade, which is why natural oak forest regeneration relies upon periodic forest fires. The periodic fires destroy underbrush and under-story plants that would otherwise shade oak trees out.

Without occasional forest fires, oaks fail to regenerate due to excessive shade. And as a result, shade-loving trees with less wildlife value, such as maples, fill the forest, further shading out young oaks.

What We Can Do

A young oak
A young oak | Source

To encourage oak regeneration, landowners can clear shading plants from around oak seedlings and saplings, allowing them the light they need to survive and grow.

Professional foresters do this in several ways, two of which are unsuitable for most landowners.

Foresters may use chemical herbicides to burn away underbrush. In a world already full of pollutants, this seems unconscionable to me.

They also sometimes use controlled fires to burn away shading plants, a practice too dangerous for the majority of property owners.

The third method for removing shade plants, however, is very doable for most of us: manual clearing.

Manual Clearing

Manual clearing means just that— manually cutting back the area around oak seedlings and saplings to allow more light to reach the plants.

For best results, this should be done twice, once when oaks are seedlings and again when they are saplings.

When oaks are seedlings, remove the underbrush and other mid-story plants nearby to ensure plenty of sunshine reaches the young plants.

When the seedlings develop into saplings, remove some of the surrounding forest canopy, cutting branches from nearby trees to allow more light to reach the forest floor.


If those of us with woods on our properties took the time to perform these two tasks, we could dramatically increase the oak population in our woods and slow down the decline of one of our nation’s most beneficial native trees.

Will you reduce shade in your forest property to encourage oak regeneration?

See results

The Full Forest Connect Seminar

Questions & Answers

    © 2017 Jill Spencer


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      • The Dirt Farmer profile imageAUTHOR

        Jill Spencer 

        2 years ago from United States

        I didn't know that, Larry! That's awesome. I would love to see the giant acorn drop! Thanks for dropping by. Best, Jill

      • Larry Fish profile image

        Larry W Fish 

        2 years ago from Raleigh

        Oak trees are important and they need to be saved. I am from Pennsylvania, but now live in Raleigh, North Carolina. Raleigh is know as the City of Oaks. Yes, we do have a lot of oak trees around. As a matter of fact on New Year's Eve they drop a huge acorn in the middle of the city.

      • The Dirt Farmer profile imageAUTHOR

        Jill Spencer 

        3 years ago from United States

        It would be awful if oaks went the way of the elm tree, wouldn't it? So many rely on them! Thanks for dropping by, MsD! Always good to hear from you.

      • The Dirt Farmer profile imageAUTHOR

        Jill Spencer 

        3 years ago from United States

        Thanks for your kind words, Sakina! Best, Jill

      • MsDora profile image

        Dora Weithers 

        3 years ago from The Caribbean

        Jill, thanks for bringing the oak situation to our awareness. The least I can do is share this information. We need the oaks, for sure!

      • SakinaNasir53 profile image

        Sakina Nasir 

        3 years ago from Kuwait

        Hi Jill! :)

        This hub is great and encourages us to grow oak trees. Very well written and researched. Great job!

      • The Dirt Farmer profile imageAUTHOR

        Jill Spencer 

        3 years ago from United States

        Always happy to drive traffic to the DNR. Thanks, Roberta.

      • profile image


        3 years ago

        Interesting hub. Information and ideas from forestry services could prove helpful to homeowners and communities: http://dnr.maryland.gov/forests/Pages/mdfacts.aspx

      • The Dirt Farmer profile imageAUTHOR

        Jill Spencer 

        3 years ago from United States

        Thanks for dropping by, Larry! Good to hear from you.

        Hi Blond Logic! There might be some situations where one could be prevented from felling a tree on one's property (for instance, if you've sold the wood to someone else), but in general, yes, people in the US can harvest trees on their property. We need to plant more acorns, right? And make some shade. (:

      • Blond Logic profile image

        Mary Wickison 

        3 years ago from Brazil

        Are the people who have oaks growing allowed to fell them? I can see the need for this as I lived in England which used to be heavily forested. It was during the time of Henry VIII as I recall when many were cut for his fleet.

        Although deciduous trees remain, now it seems to be mostly pine.

        Maybe people who don't have oaks growing could be encouraged to do so as a way to save them.

        Very informative.

      • Larry Rankin profile image

        Larry Rankin 

        3 years ago from Oklahoma

        Great ideas!

      • The Dirt Farmer profile imageAUTHOR

        Jill Spencer 

        3 years ago from United States

        Thanks for commenting, Jodah. It was a good seminar. Best, Jill

      • Jodah profile image

        John Hansen 

        3 years ago from Queensland Australia

        This is a very informative and interesting article, Jill. It is certainly an important issue to protect the oak forests. Great images and videos too. Good job all up.


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