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Softwood & Hardwood Trees

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Sophie Cuypers

on 28 July 2014

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Transcript of Softwood & Hardwood Trees

Differences -
Redwood Tree - Softwood
Where is it found?
Redwoods are descendants from Ancient times. In the the age of the dinosaurs, about a million years ago, the earliest Redwoods were mostly in the forests that were much more moist and tropical in North America.
Fog plays a big role in the survival of Redwood trees, protecting them from the summer conditions. They also need lots of winter rain and moderate year round temperatures. When the trees are stressed from lack of moisture and sunlight they may grow as little as one inch per year.
The Redwood needles form a thick mat on the forest floor, limiting plants from growing underneath, especially in a developed forest. The trunks reach upwards seeking the sunlight above the canopy. The lower needles are broad and long, breathing the moist cool air below.

Redwoods grow at their own pace. If they are living in ideal conditions then they can grow about 1-2 metres per year. But if their conditions aren't as good then they could grow at least an inch yearly. Because of their giant height, they can grow to full height in 100 to 200 years time!
Available or Endangered?
Redwood trees are classified as an endangered species now. This is because, the areas for the trees to grow have been limited so there is space to grow trees that grow faster. Also, because these trees take so long to mature, there isn't as much that will be ready, only a few every hundred years.
What is it used for?
Redwood is a soft, lightweight wood that is quite strong for its weight. The wood is used indoors for veneers, panelling and certain furniture pieces. The inner portions of the tree can be used for outdoor decking or patio furniture.
Softwood & Hardwood Trees
By Sophie Cuypers 8H
As the climate became drier and colder, Redwood trees retreated to the Pacific coast of Northern California which is where they are commonly found today.
= Northern California
+ 100-200 years =
Flowersociety.org, (2014). Redwood profile. [online] Available at: http://www.flowersociety.org/Redwood-profile.htm [Accessed 21 Jul. 2014].

Parks.ca.gov, (2014). About Coast Redwoods. [online] Available at: http://www.parks.ca.gov/?page_id=22257 [Accessed 21 Jul. 2014].

Turner, P. (2014). What Is Redwood Used For? | eHow. [online] eHow. Available at: http://www.ehow.com/info_8168277_redwood-used.html [Accessed 20 Jul. 2014].

eHow, (2014). Uses of Birch Trees | eHow. [online] Available at: http://www.ehow.com/list_6616334_uses-birch-trees.html [Accessed 28 Jul. 2014].

Lindell, J. (2014). Where Are Birch Trees Found in the World? | eHow. [online] eHow. Available at: http://www.ehow.com/facts_7178692_birch-trees-found-world_.html [Accessed 28 Jul. 2014].

Na.fs.fed.us, (2014). How to Grow and Maintain a Healthy Birch Tree. [online] Available at: http://www.na.fs.fed.us/spfo/pubs/howtos/ht_birch/ht_birch.htm [Accessed 28 Jul. 2014].

Treesforlife.org.uk, (2014). Trees for Life - Species profile: Birch. [online] Available at: http://www.treesforlife.org.uk/tfl.birch.html [Accessed 28 Jul. 2014].
Birch Tree - Hardwood
Where is it found?
Birch trees are a common species of tree in the cooler parts of the Northern Hemisphere. Birch trees grow in almost every country but are most common in Canada, the U.S, Europe and much of Asia.
Types such as the silver birch and the downy birch grow in various countries. The European white birch grows as far south as Italy and as far north as the Arctic Circle.
= Northern Hemisphere
Birch trees grow well in cool, moist soils. They have very short root systems which makes them sensitive to droughts and heating of the soil. Although, birch trees require full or partial sunlight.
Birch trees can reach heights of up to 20 metres tall. They are very slender and the diameter of their trunk never usually exceeds 40cm. In young trees the bark is reddish brown, but this changes to white as they mature. Silver birch leaves tend to turn a brighter yellow than those of downy birch, which are usually dull or brownish.
What is it used for?
The bark of a particular species of birch, is flexible, durable and strong. It is also water resistant which, makes it suitable for the construction of lightweight canoes.
Birch plywood is used to make shelving units, counter tops, panels, walls, cabinets, floors, roofs and scaffolding materials. Birch plywood is also used as a material in wind turbine blades.
Birch hardwood is used to make musical instruments such as drum sets.
Playground equipment, fences, toothpicks, paper, outdoor signs, and a variety of sports equipment are manufactured from the wood obtained from birch trees.
Birch trees grow rapidly during the spring and summer, reaching a height of 10 metres over 20 years.

A healthy Birch tree should live for 40-50 years. But usually only live to 20. During its short lifetime, it would reach a maximum height of 20 metres, supported by roots that require a minimum depth of 60 cm.
Available or Endangered?
Birch trees are not endangered except for one species which is the Virginia round-leaf Birch.

They are grown in almost every country in the world and they aren't slow growing. They are available in Winter and Autumn usually when the soil is moist.
Yellow dots
= Only places the Virginia round leaf Birch is grown.
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