Course: Assignment 12: Ecosystem Capital: Use and Restoration Chapter 7
Major Systems and Their Goods and Services
1. List seven services performed by natural ecosystems:
a. decomposition of waste matter
- provision of clean drinking water by nature
- Elimination of excess carbon from the atmosphere and detoxification of the environment
d provision of good climate for existence
- Pharmaceuticals, biochemicals
- energy such as biogas and hydropower
g Mineral production
h Crop pollination
2. The loss of which natural service led to
a. Siltation and flooding of rivers in Bangladesh. Climate regulation
- Eutrophication of Chesapeake Bay waste management and detoxification
- How much would it cost to duplicate the water purification and fish propagation capacity of a single acre of tidal wetland? $100,000 per year
4. We can compensate for the losses of natural services. (True or False)
true
Conservation, Preservation, Restoration
5. Any resource that has the capacity to renew or replenish itself is called a renewable resource.
6. The aim of conservation is to preserve or prolong use.
7. The term conservation implies complete denial of any use of a natural resource.
(True or False) False
8. The term preservation implies complete denial of any use of a natural resource.
(True or False) False
Public and Private Lands in the U.S
9. Nearly 75 percent of U.S. land is publicly owned.
10. The majority of U. S. public lands are in the Nevada states and Utah.
11. The purpose of the Wilderness Act of 1964 is to (conserve or preserve).
National Forests. Conserve
12. Managed commercial forests in the East are on (private or state or federal) lands. Federal
13. Managed commercial forests in the West are on (private, state, or federal) lands. State
14. Deforestation is no longer a problem in the United States.
(True or False) False
15. Only 30 percent of the original U.S. forests are left.
16. Most U. S. forests are (old or second) growth forests. Second
17. U.S. taxpayers make money from the sale of national forest lumber.
(True or false) true
18. List four factors that characterized “New Forestry”.
a. high annual precipitation
b. can be found in both temperate and tropical regions in thee world. - they are very humid due to high precipitation.
- support variety of organisms
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