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Land And Water Use

Land And Water Use

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Land And Water Use

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Presentation Transcript

  1. Land And Water Use Part 4

  2. Urban Land Development

  3. Urban Development • Planned Development • 76 million residential buildings and 5 million commercial buildings in the US • Use 1/3 of all energy and 2/3 of all electricity consumed in US

  4. Urban Development • The Green Approach

  5. Urbanization • Pros • Cons

  6. Transportation infrastructure

  7. Federal Highway System • 160,000 miles of roadway • Federal highways receive substantial federal funding but state owned, built, operated • Federal highway tax • 18¢ gas tax • 25¢ diesel tax • Tax on heavy vehicles

  8. Federal Highway System • Benefits • Impacts on Environment

  9. Public and Federal Lands

  10. National Parks • 1,100 national parks in world • Largely unprotected due to cost • 84 million acres in US • Alaska = 16% of entire system

  11. Threats to National Parks

  12. Reducing the Threat

  13. Relevant Laws • National Park Service Act 1916 • Establishes national park service • Wild and Scenic Rivers Act 1968 • Ensures protection of river’s unique environment • Preserves select rivers • 4 rivers in NC

  14. Wildlife Refuges • Developed to protect wildlife during times of crisis • Managed by US Fish and Wildlife Service

  15. Wetlands • High plant productivity • High biodiversity • 50% of US wetlands have been altered or destroyed • Urbanization – 10% • Agriculture – 90% • 1/3 of all endangered species spend part of lifecycle in wetlands

  16. Wetlands • Types of wetlands • Fen: • Bog: • Marsh: • Swamp:

  17. Wetlands • Wetland Services

  18. Land Conservation

  19. Conservation Options • Preservation • Remediation • Mitigation • Restoration

  20. Principles in Land Conservation • Protect biodiversity, habitats, and function through monitoring • Adopt a user pay approach • Require responsibility of any user who damages or alters public lands

  21. Principles in Land Conservation • Reduce road building • Rely on more sustainable tree-cutting methods • Reduce fragmentation