Ecology

Ecology

Industry: Biology

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Ecology

soil

Biology; Ecology

A mixture of humus and particles weathered from rock. A cubic yard of soil will cover 300 square feet of ground to a depth of 1 inch. The major nutrients are nitrogen, phosphorus, and potassium. ...

Using the same soil to grow different crops. Interrupts cycles of weeds, diseases, and insects; builds organic matter, improves soil structure. Useful rotations: nutrient-grabbing crops like corn, ...

climate

Biology; Ecology

Average atmospheric conditions over a long time interval. Energy from the sun drives climate, which sets limits on a biome's plant life and therefore on the animals that live there. The Koppen-Geiger ...

biogeochemical cycles

Biology; Ecology

The great loopings and returns of life-giving substances through the environment. The three most important are the gaseous (e.g., the carbon, oxygen, and nitrogen cycles), the sedimentary (including ...

earthquake faults

Biology; Ecology

There are several types of earthquake faults including: * normal: the hanging wall (the fault that moves) slides down the foot wall (stationary). * reverse: the hanging wall slides up the foot ...

chlorofluorocarbons (CFCs)

Biology; Ecology

Nonburning chemicals made of carbon, chlorine, and fluorine and used in aerosol sprays, solvents, foams, refrigerants, and packing materials. When released into the air and exposed to ultraviolet ...

bush fallow

Biology; Ecology

Secondary tropical or subtropical vegetation planted in forests in order to regenerate the soil between crops. In places like western Sudan, this traditional practice has been subverted by a Western ...