PA Forests and Old Growth Forests

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Presentation transcript:

PA Forests and Old Growth Forests

What do you know about… What types of forest there are? What has happened to PA forests over the past 300 years?

What is an Old Growth Forest? Old-Growth Forests (virgin forest): forests that have never been disturbed (logged or burned)

Old Growth Redwoods (Cali and Oregon)

Old Growth Douglas Fir (Pacific Northwest)

PA Old Growth

Distribution of Old Growth Forest Largest area of old-growth forest in the country. The area is high in biodiversity.

Brief History of PA Forests Prior to European Settlers there were over 29 million acres of virgin forest in PA 200 years ago logging was done to clear the land for crops and use for lumber A high demand for wood made PA the leading lumber producer in the nation in the 1860’s

PA Forest History Con’t Many of the hemlock trees (state tree) were cut down for the tannic acid in their bark and the wood was wasted By the 1900’s almost all the Old Growth forests were removed Today Pa manages 2 million acres of forest and only a few patches of virgin forest.

Organisms of the Pacific Northwest Old Growth Forest These are from your homework. Just know what each of these organisms are and what their niche is in the Old Growth Forest.

Question… Before you learn about it, write down what you think a forest should look like…have… to be the healthiest and most sustainable?

Laws and Old Growth Forests are managed by the US Forest Service. Law requires that national forests and other federal lands to be managed for multiple use: Logging Mining Grazing Recreation Fish and Wildlife Habitat Watershed Protection

Protected Forests Only National Parks or Wilderness Areas are protected from logging…NOT National Forests!

Links to National Park Websites Click on these links to take time to explore some national parks. Look at pictures and locations of the parks… Try to look at several with the time that you have. http://www.pbs.org/nationalparks/parks/

Conflict Between Logging and Environmental Protection…

Great Link for Redwoods http://ngm.nationalgeographic.com/redwoods/redwoods