Environmental Science Hit Parade: Chapter 6

Front 1

agroforestry

Back 1

when trees and crops are planted together, creating a mutualistic symbiotic relationship between them.

Front 2

aquaculture

Back 2

the raising of fish and other aquatic species in captivity for harvest.

Front 3

capture fisheries

Back 3

fish farming in which fish are caught in the wild and not raised in captivity for consumption.

Front 4

contour plowing

Back 4

a process in which rows of crops are plowed across the hillside; this prevents the erosion that can occur when rows are cut up and down a slope.

Front 5

ecosystem capital

Back 5

the value of natural resources.

Front 6

natural resources

Back 6

biotic and abiotic natural ecosystems.

Front 7

no-till methods

Back 7

refers to when farmers plant seeds without using a plow to turn the soil.

Front 8

old growth forest

Back 8

one that has never been cut; these forests have not been seriously disturbed for several hundred years.

Front 9

production

Back 9

the use of environmental resources for profit.

Front 10

second growth forests

Back 10

areas where cutting has occurred and a new, younger forest has arisen.

Front 11

shelter-wood cutting

Back 11

when mature trees are cut over a period of time (usually 10-20 years); this leaves mature trees, which can reseed the forest, in place.

Front 12

silviculture

Back 12

the management of forest plantations for the purpose of harvesting timber.

Front 13

tailings

Back 13

piles of gangue, which is the waste material that results from mining.

Front 14

terracing

Back 14

creating flat platforms in the hillside that provide a level planting surface, which reduces soil runoff from the slope.

Front 15

tree farms

Back 15

also known as plantations, these are planted and managed tracts of trees of the same age that are harvested for commercial use.

Front 16

uneven-aged management

Back 16

the broad category under which selective cutting and shelter-wood cutting fall; selective deforestation.