Reforestation is the term used for this. It is vital in order to keep the forest thriving and usable for years to come. It can be thought of as replacing what you take.

Rafting was an extremely important way of transportation that was used throughout history. In those days, no trees meant no rafting, which could cause even greater trouble.

Forest railways are used to transport logs and trees out of the forest. This is done through the use of a train and cabooses.

Fertilizer is known to be a great help in growing all types of plants; trees included. It can be especially helpful in an area of reforestation, where tree growth is extremely important to the revitalization of the forest.

This is true. Logs are measured in terms of cubic feet, or inches. It is calculated by using the radius of the full log and multiplying.

"DIB" stands for "diameter inside bark." If asked for this measurement, you measure from the middle of the trunk to the inside of the bark.

The invention of the portable chain saw is an important one to forestry. This marked the start of automated chain saws that you could take with you, making cutting down trees that much easier.

If a tree is felled, it means that it's cut down. As the tree is known to be felled, the person who cut it is known to be the "feller". Be careful if you're there when it's being cut. Safety first!

Controlled burning is a safe way to exterminate trees. It is most commonly done to manage tree populations and it is executed with great care.

This is true. Knots in wood are caused by branches breaking off. When the log is cut, the knot in the wood can create unique designs for certain projects.

AAC is an acronym used for "annual allowable cut." This is used to tell someone how many of the trees can be cut during that year in order to keep the ecosystem healthy. This is an important rule to abide by.

A management plan is often put into use to make sure that a forest is being taken care of properly. It is important for the future of the forest and gives detail about what can be done to it.

Canada is the country with the largest forestry product trade in the world. What might be surprising is that Sweden is the second largest! This is important to both of the country's economies.

Pinhal do Rei is a forest from the 1200s that was managed and up-kept by the King of Portugal. Thanks to his hard work, we can still visit the forest today. It's a great example of how forests can thrive if they're allowed the chance.

This is false. Reserve is actually used to refer to an area of trees that are not permitted to be cut. These areas are protected by law.

Trees convert carbon dioxide into oxygen so that we can breathe. This is part of the importance and benefits of ensuring that our trees are protected. Finding a healthy balance between using what is needed and sustaining is always a good choice.

Conservation is a huge goal in forestry, as it is important to keep our trees healthy for both ourselves and the Earth. Without them, we wouldn't be able to thrive!

This is called a closed canopy. The branches are usually so thick at the canopy level that even light has a hard time shining through to the ground. This makes it darker in these very covered areas.

In forestry, decision making is extremely important, as you'll be determining many factors upon making one. You must always consider the effect that something may have on people, wildlife and the forest itself.

This is true. The second growth is the name for the second layer of trees that grow after the first batch have been cut. Once they reach maturity, they can be cut as well.

Backpack sprayers are useful tools for forestry professionals as they can easily transfer plenty of chemical onto an area of plants. They're often used with pesticides as well.

A bole is better known as the trunk of the tree. The bole is very important in forestry, as not only can it tell you the type of tree that you're looking at, but also the age of the tree.

The canopy is the highest layer of the forest, and what you would see if you flew over one. It includes the leaves and branches of the tallest trees. The other two layers are the floor and the understory.

Often, forests are very good for the soil. In some places where landslides are common, forests can minimize the risk greatly of a landslide taking place. This can be grounds to protect a forest from deforestation in some places.

This is true. The skidder is used to pull the wood out, as it could be difficult for people to pull them out themselves! It's a large machine that hooks onto the logs to take them out.

A mature tree is ready to be cut down and taken out of the forest. In contrast, an immature tree is the opposite, and it is still growing up.

Defoliators attack the leaves in order to kill a tree. You may know them better as caterpillars and other tiny insects that feed on trees. While they are important to the ecosystem, they are needed in moderation. There can be a point where there are too many of them for the forest to handle.

One way to tell if you're looking at a tree plantation is by the placement of the trees. If you can see straight lines made by the trees, you're likely looking at a plantation.

Grading references the quality of the wood that is cut. It is a selective process that involves finding the highest quality wood in the forest to cut and sell.

This is true. Timber marks are important to watch out for as they identify trees. They can take different forms, such as painting markers on the trees.

Hinge wood is used to control where a tree falls. It's a technique that is done through cutting the tree with a chain saw.

A hypsometer is a gadget you'll want to have on you if you work in forestry. It works off the calculations of angles in order to determine the height.

An increment borer is used to take samples from the trunk of a tree. This is important, as it can be effective in helping a forestry professional to determine how old a tree is.

The choker is a wire that you might use when skidding logs in the forest. It's wrapped around the log to make it easily to pull it out and put it where it needs to be.

This is true. This is a term used by forestry professionals to describe trees like this. Often, these trees will also be uprooted.