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Published byClarence Ray Modified over 8 years ago
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Land, Public and Private Chapter 10
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Public and Protected Land 11% of the Earth’s surface 42% of the United States is publically owned – federal, state, local
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Land Use in the U.S. grazing land – 25% timber production – 23% cropland – 20% urban, residential, transportation – 4%
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Management of Federal Lands 95% of all federal lands are managed by four government agencies many federal lands are multiple-use lands
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Bureau of Land Management (BLM) grazing mining timber harvesting recreation
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U.S. Forest Service (USFS) timber harvesting recreation
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National Park Service (NPS) recreation conservation
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Fish and Wildlife Service (FWS) wildlife conservation hunting and recreation
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Land Management Practices and Environmental Issues
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Rangelands overgrazing and soil degradation Taylor Grazing Act of 1934 – shifted federal rangelands from a commons to a permit-based system even with permits, grazing lands are heavily subsidized by taxpayers
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Tragedy of the Commons the tendency of a shared, limited resource to become depleted because people act from self- interest for short-term gain.
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Maximum Sustainable Yield The greatest sustainable use (harvest) of a renewable resource Often about ½ of the carrying capacity
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Forests ¾ of forest land in U.S. – privately held Timber Harvesting – pros and cons of clear-cutting selective cutting tree plantations USFS mission has evolved from timber production to include recreation and biodiveristy and habitat protection
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Fire Management benefits of forest fires crown fires prescribed burn
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National Parks Yellowstone – 1872 mission: scientific, educational, conservation and recreation
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National Wildlife Refuges conservation, management, and restoration of wildlife
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National Wilderness Areas most restricted land use created from other public lands
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Federal Regulation of Land Use National Environmental Policy Act (NEPA) – 1969 – requires Environmental Impact Statements for some development projects may require Environmental Mitigation Plans
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Expansion of Residential Land Use suburban and exurban urban sprawl smart growth eminent domain
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US Urbanization Patterns Initial migration to large central cities from rural areas Later migration from large cities to suburbs Migration from north and east to south and west Recent migration back to rural areas (exurbs)
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Smart Growth Mixed land uses create a range of housing opportunities and choices create walkable neighborhoods encourage community and stakeholder collaboration in development decisions take advantage of compact building design Foster distinctive, attractive communities with a strong sense of place Preserve open space, farmland, natural beauty and critical environmental areas Provide a variety of transportation choices Strengthen and direct development toward existing communities Make development decisions predictable, fair and cost-effective
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