1. Questions of the day
1. How have forests changed since colonial America?
How were forests harvested?
Today, how do we use/harvest forests?

2. History of Forests

3. A. Indiscriminant cutting
Oak and Pine cut for shipbuilding and housing
Land cleared for agriculture to grow food. First in the Northeast, then Midwest, then the South, lastly the Pacific Northwest (which is predominantly Douglas Firs)

4. Originally about 50% of the country was forested (900 million acres)
Now about 33% or 1/3 of the land is forested
Timber harvested furnishes us with about 4500 different types of products- Large part of the economy

5. Clear Cut Forest

6. Players in the conservation movement
In the late 1800’s, concern for forest conservation begins due to large swaths of forested land in US being cut and wild lands being lost
Conservationist- Teddy Roosevelt and Gifford Pinchot
Preservationists- John Muir

7. Teddy Roosevelt and Gifford Pinchot
Read Inquirer Article
Answer these questions:
1.Why was Roosevelt interested in conservation?
2. By the end of Roosevelt’s term, how many National Forests were there?
3. Roosevelt and Pinchot’s views of natural resources differed from those of John Muir. What are the terms associated with their views, and how do they differ?
4. Would you consider yourself a preservationist or a conservationist?

8. National Forest Service
Begins 1905
Started by Teddy Roosevelt
Headed up and organized by Gifford Pinchot (also, a two time governor in PA)

9. Teddy Roosevelt and John Muir
3-column chart
Teddy Roosevelt/ Gifford Pinchot/John Muir

10. How are forests used?
Multiple use management- Forests are managed to provided multiple benefits to wildlife and people.
There are six important benefits:

11. 1. Timber production Timber harvest for wood products
Today use sustainable harvesting methods

12. 2. Watershed protection
Trees prevent erosion and the build up of silt in the water- this is called a riparian buffer.
Raindrops are broken by leaves, and fall gently onto the “duff” (litter of composting leaves and twigs) instead of running off the surface.

14. 2. Watershed Protection cont’d
Water soaks into channels made by roots and animals to replenish ground water.
Trees prevent floods when there is very hard rain.
Johnstown, PA flood

15. 3. Climate Protection
Water evaporating from leaves keeps air cool and moist. (Think of how it feels when you enter a forest in the summertime.)
Rows of trees (shelter belt) along a farm field, slows down wind and prevents soil erosion.

16. Shelter Belt example

17. 3. Climate protection cont’d
Trees remove microscopic dust particles and some toxic pollutants from the air and soil.
Trees remove CO2 (gas which causes global warming). Trees can take in 26lbs of CO2 and convert it to sugars and oxygen.

18. 4. Grazing
Farm woodlots are place for cattle, sheep and pigs to “forage.”(find food on the forest floor) Pigs that feed on chestnuts/apples taste better.
Must be careful not to allow overgrazing, or all plant cover will be removed and the soil will become compacted.

19. Sheep grazing in Apache National Forest, AZ

20. 5. Recreation
Forests are enjoyed by hikers, bikers, campers, birdwatchers etc.
Forest are spiritually refreshing to many.
National Forest nearby include:
Alleghney Nat’l Forest, Finger Lakes Nat’l Forest

21. 6. Wildlife Protection
Forests provide food, shelter and water for wildlife.
Foresters can help by making some sunnier clearings where weeds, shrubs, vines, grasses can produce seeds, nuts, berries for food (we call this mast)
Snags (dead tall standing trees) and old logs serve as dens, nests and nurse logs (logs in the process of decomposing)

22. Nurse log ecosystem

23. Pileated Woodpeckers and Snags in Forests

24. 6. Wildlife Protection
Healthy forests provide for cleaner, coolers stream water for fish, like trout.
The more birds and bats there are the fewer insects there are.
In our area, deer have become overabundant, which has impacted our forests. (Think Valley Forge)

25. Types of Trees and Forests- determined by geogrpahic location and climate