Land and Water Use

Ashley Hay
Flashcards by Ashley Hay, updated more than 1 year ago
Ashley Hay
Created by Ashley Hay over 4 years ago
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Advanced placement Environmental Science (Flashcards) Flashcards on Land and Water Use, created by Ashley Hay on 04/13/2016.

Resource summary

Question Answer
tragedy of the commons tendency of a shared, limited resource to become depleted b/c people act in self-interest for short term gain
clear-cutting removing all or almost all of the trees within an area
selective cutting removing single trees or a relatively small number of trees from among many in a forest - less environmental impact than clear-cutting
ecologically sustainable forestry an approach to removing trees in forests in ways that don't unduly affect the viability of other trees
prescribed burn fire that's deliberately set under controlled conditions to reduce the accumulation of dead biomass on a forest floor
wildlife refuge federal public land, purpose to protect wildlife
wilderness area area set aside to preserve a large tract of intact ecosystem or a landscape
NEPA (National Environmental Policy Act) mandates an environmental assessment of all projects involving federal money or land grants (1969)
Endangered Species Act designed to protect species from extinction (1973)
urban sprawl urbanized areas that spread into rural areas, removing clear boundaries between the two
urban blight degradation of the built and social environments of the city that often accompanies / accelerates migration to the suburbs (aka: reason people move out)
smart growth set of principles for community planning, strategies to encourage development of sustainable, healthy communities 1. mixed land uses 2. range of housing options and choices 3. walkable neighborhoods 4. collaboration in development decisions 5. compact building design 6. distinctive, strong sense of place 7. open space, natural beauty, farmland 8. variety of transportation 9. strengthen existing communities 10. development decisions = predictable, fair, & cost-effective
food security vs. insecurity security: access to sufficient, safe, nutritious food that meets dietary needs insecurity: people don't have adequate access to food
malnutrition diet lacks correct balance or proteins, carbs, vitamins, & minerals
undernutrition not enough calories ingested to maintain health
overnutrition too many calories and a lack of balance of foods and nutrients
famine food insecurity is so extreme that large number of deaths occur in a given area over a relatively short period
green revolution 1900s shift in agricultural practices- new management techniques, mechanization, fertilization, irrigation - resulted in increased food output
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