APES Unit 5 Review

The cultivation of seafood under controlled conditions, usually involving raising fish in underwater tanks or in ponds

Diseases can occur, requiring expensive antibiotics;

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Breeding organisms with specific traits in order to produce offspring with those traits; not only animals but crops as well

The unintentional catch of nontarget species while fishing, or juveniles

Raising a large number of animals bred to gain weight quickly, in crowded buildings; usually must use antibiotics to prevent disease from spreading easily through the population; nutrient supplements, confined, little movement; source of methane emissions

The process of cutting down all the trees in an area at once; easiest and most economical, often stands are replanted; leads to soil erosion, increased soil and stream temperatures, and flooding

An agricultural technique in which plowing and harvesting are done parallel to the topographic contours of the land

the system of growing a different crop in a field each year to preserve the fertility of the land, also part of IPM

Degradation of land, especially in semiarid areas, primarily because of human actions like excessive crop planting, animal grazing, and tree cutting.

the practice of using small pipes that slowly drip water just above ground to conserve water to use for crops; most efficient, reduces weed growth, useful in perennials, but more money, and might need to remove to plow; only about 5% of water lost to evaporation and runoff

the entire field is flooded with water; the system sees about 20% of the water lost to evaporation and runoff; can also lead to waterlogging of the soil

the impact of a person or community on the environment, expressed as the amount of land required to sustain their use of natural resources; compare resource demands and waste production required for an individual or a society

describe the current state of an environmental system and can guide humans to sustainability; include (1) biological diversity, (2) food production (3) average global surface temperatures and CO2 concentrations (4) human population and (5) resource depletion