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Definition of Macropores

Macropores Definition from Science & Technology Dictionaries & Glossaries
Soil Glossary - Mani
Pores >100 mm in diameter.
Agricultural Glossary/yigini2004
: Pores >100 mm in diameter.
—Spaces in soil fabric, generally <2 mm in diameter.
Macropores Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In soil, macropores are defined as cavities that are larger than 75 µm. Functionally, of this size host preferential soil solution flow and rapid transport of solutes and colloids. Macropores increase the hydraulic conductivity of soil, allowing water to infiltrate and drain quickly, and shallow groundwater to move relatively rapidly via lateral flow. In soil, macropores are created by plant roots, soil cracks, soil fauna, and by aggregation of soil particles into peds.

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Macropores Definition from Society & Culture Dictionaries & Glossaries
EPA Terms of Environment
Secondary soil features such as root holes or desiccation cracks that can create significant conduits for movement of NAPL and dissolved contaminants, or vapor-phase contaminants.
Provided as a public service by the U.S. Environmental Protection Agency
Environmental Engineering (English ver.)
Secondary soil features such as root holes or desiccation cracks that can create significant conduits for movement of NAPL and dissolved contaminants, or vapor-phase contaminants.