surface soil


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Related to surface soil: soil profile

surface soil

[′sər·fəs ‚sȯil]
(geology)
The soil extending 5 to 8 inches (13 to 20 centimeters) below the surface.
References in periodicals archive ?
Overall, the greater activities were measured at surface soil and b-glucosidase activity significantly decreased with depth (p<0.
The green and dead weeds on the soil surface protect the soil surface from heavy rain, and the dead roots add organic matter and maintain a soft, stable and porous surface soil.
The primary surface soil texture class across Wentworth Falls is sand.
We find that organics are not likely preserved in surface soils, which are exposed to harsh radiation and oxidants," said Leshin.
Organic matter in surface soil and subsurface soil was respectively increased with the average of 0.
where the uniform soil thermal properties in the surface soil layer are assumed.
Traditionally, covers over landfills have sought to exclude precipitation, which could soak through and contaminate the underlying soil, but research is being conducted on water balance covers, which are designed to trap precipitate liquid in surface soil and allow it to drain away or evaporate later.
Thus, your plant roots inhabit the best of both worlds: an expanded soil zone for increased absorption and the improved, biologically richer, nearer-to-the surface soil, all of which occurs while you are solving the challenge of a too-tall plant.
2000) reported that conservation tillage increased soil organic C and N content of the surface soil after being practiced for extended periods of time.
But the main picnic area contained lead pellets in surface soil, the report said.
Refresh pot plants which are not to be re-potted by removing some of the surface soil and replacing it with fresh compost.
In the mountainous areas of the country, forests are important to protect the surface soil and underground water, environmentalists say.

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