Glossary

 

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Regolith

The unconsolidated mantle of weathered rock and soil material on the Earth's surface, sometimes considered to be loose earth materials above solid rock.


Regulating services

The benefits obtained from the regulation of ecosystem processes, including, for example, the regulation of climate, water, and some human diseases.


Root exudates

Substances released from plant root system in drops or small quantities of carbohydrates, organic acids, vitamins and many other substances essential for life of soil micro-organisms.


Runoff

That portion of precipitation not immediatety absorbed into or detained upon the soit and which thus becomes surface flow. 



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