によって huang caoling 10年前.
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Sustaining Terrestri
Sustaining Terrestrial Biodiversity
Urban Sprawl
Urban Blight
decline in urban services
pop. shift to suburbs
Increase dependence on cars
increases pollution
gas comsumption
highway construction
Loss of agricultural land
urbanized area that
spread into rural
Forests Management
Fire Management
nutrients liberated from biomass
natural fires allowed
prescribed burns
Ecologically sustainable forestry
animal power
maintaining all species
close to the natual state
Selective-cutting
optimum growth-shade
tolerent species
trees of varying age
Clear-cutting
(timber-harvesting method)
increases erosion
tree plantations（single species)
Replanting( same age trees)
Land Use Concepts
Maximum Sustained Yeild
Externalities
Tragedy of the Commons
overuse
overgrazing
deforestation
overharvesting
without agreement
or regulation
common resources
Federal Regulation
(managing common areas)
Fish and Wildlife Sercives
Endangered Species Act
Environmental Mitigation Plan
Environmental Impact Statement(EIS)
National Environmental
Pilicy Act(NEPA)
Public Lands
Protected Areas
scientific/ historical significance
wildlife/fish pop.
maintain watershed
Multiple use lands
Mining
Timber Harvesting
grazing
recreation
National Monuments
Protected landscapes
/seascapes
Natural reserces
/wilderness
Habitat
Managed Resources
National Parks
How humans value land
what it can provide
(food, shelter, natural resources)
