Land cover change
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Refers to the changes that have taken place in natural environments due to a variety of natural and/or human induced causes
DEFINITION
salinization
TERM
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Accumulation of salts in soil that can eventually make the soil unable to support plant growth.
DEFINITION
irrigation
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Supplying land with water through a network of canals
DEFINITION
Center-pivot irrigation
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a type of irrigation that waters crops using sprinkler systems on huge turning wheels
DEFINITION
wetlands
TERM
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a lowland area, such as a marsh or swamp, that is saturated with moisture, especially when regarded as the natural habitat of wildlife.
DEFINITION
deforestation
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The removal of trees faster than forests can replace themselves.
DEFINITION
Slash-and-burn agriculture
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Another name for shifting cultivation, so named because fields are cleared by slashing the vegetation and burning the debris.
DEFINITION
Genetically modified organisms (GMOs)
TERM
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crops that carry new traits that have been inserted through advanced genetic engineering methods
DEFINITION
aquaculture
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The cultivation of seafood under controlled conditions
DEFINITION
overgraze
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to allow livestock to strip areas so bare that plants cannot grow back
DEFINITION
Organic food
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a food produced without the use of synthetic fertilizers, pesticides, or growth hormones
DEFINITION
Value-added farming
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occurs when farmers process their crops into high-value products (e.g. turning grapes into wine)
DEFINITION
Local-food movement
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collaborative effort to build more locally based, self-reliant food economies
DEFINITION
Community gardens
TERM
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spaces where groups of people grow fruits, vegetables or ornamental plants on either a communal or an individual plot
DEFINITION
Vertical farms
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grow crops inside in stackable trays, using greenhouses, artificial lights, and hydroponics.
DEFINITION
hydroponics
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the method of growing plants in a solution of nutrients instead of in soil
DEFINITION
Community-supported agriculture (CSA)
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A system in which consumers pay farmers in advance for a share of their yield, usually in the form of weekly deliveries of produce.
DEFINITION
Food insecurity
TERM
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a condition in which people do not have adequate access to food
DEFINITION
Food desert
TERM
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An area in a developed country where healthy food is difficult to obtain
DEFINITION
Food distribution system
TERM
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a network of trade and transportation that get food from farms to consumers
DEFINITION
Food processing
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The cooking, canning, drying, or freezing of food and the preparing of it for market.
DEFINITION
tariff
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A tax on imported goods
DEFINITION
quota
TERM
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A limit placed on the quantities of a product that can be imported
DEFINITION
Gender inequality
TERM
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the inequality between men and women in terms of wealth, income, and status
DEFINITION
Gender-specific obstacles
TERM
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discriminatory practices that prevent female farmers from their potential productivity
DEFINITION
Crop gap
TERM
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female-run farms are much less productive because of gender-specific obstacles
DEFINITION