Related Words

Soil Moisture Zone: Depth of soil from which plant roots extract water.

Soil Sterilant: A chemical that temporarily or permanently prevents the growth of all plants and animals, depending on the chemical. Soil sterilants must be registered as pesticides.

Soil Stack: A plumbing vent pipe that penetrates the roof.

Soil Solarization: Fumigating and warming soil by covering it with black plastic. This is an alternative pest control technique being investigated as an alternative to the use of methyl bromide (a chemical fum . . . View Full Definition

Soil Survey: A program of the Natural Resources Conservation Service to inventory soil resources as a basis for determining land capabilities and conservation treatments that are needed, provide soil inf . . . View Full Definition

Soil Series: A group of soils having horizons (or layers) similar in characteristics and arrangement in the soil profile, except for the texture of the surface portion. They are given proper names from p . . . View Full Definition

Special Studies Zone: A specific area where an investigation is taking place regarding seismic or geologic considerations.

Surf Zone: An area of breaking waves bounded by the point of first breakers, then landward to the maximum uprush of waves on the beach.

Target Heart Rate Zone: The number of heartbeats per minute reflecting the exercise intensity that gains the maximum training benefits from an aerobic workout. The formula for obtaining a target heart rate equals 2 . . . View Full Definition

Sunlight Zone: See Photic Zone.