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14 terms

Chapter 11

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Agroecosystem
agricultural ecosystem
Aquaculture
rearing aquatic animals or cultivating aquatic plants for food
Crop Rotation
The practice of rotating use of different fields from crop to crop each year, to avoid exhausting the soil.
Genetically Modified Crops
Transferring specific genetic characteristics between individuals, populations, or species of crops
Green Revolution
Post-WWII programs that led to the development of new crop strains with higher yields, better disease resistance, or better ability to grow under poor conditions
Limiting Factor
A factor whose availability is the least in comparison to the needs of a species
Macronutrient
A chemical element required by all living things in relatively large amounts, including sulfur, phosphorus, magnesium, calcium, potassium, nitrogen, oxygen, carbon, and hydrogen
Mariculture
Farming of ocean fish
Micronutrient
Chemical element required in small amounts, usually including rare metals.
Monoculture
Large areas planted with a single species or even a single strain of subspecies (i.e. a single hybrid of corn)
Organic Farming
A type of farming that is more like natural ecosystems than monocultures, minimizes negative environmental impacts, and produces food without artificial compounds.
Pasture
Land that is plowed, planted and harvested to provide forage for animals.
Rangeland
Land that provides food for grazing and browsing animals without plowing and planting.
Synergistic Effect
A change in availability of one resource affects the response of an organism to some other resource.