Sentence examples for with a subsoil from inspiring English sources

The upper soils are a mixture of clay and sand, with a subsoil of clay.

Therefore, in these experiments on natural-soils or soil-based substrates, localized supply of N could only be realized as a subsoil NH4 +-depot with its associated effects on localized root growth stimulation and rhizosphere acidification—and not as NO3 −.

Because of the high humidity, a yellow soil with a yellowish brown subsoil originated from sandstone, shale, and clay constitutes the largest area in the province.

We explored the role of these two pathways in a 70 day microcosm experiment with a sandy loam subsoil with hay mixed in.

Combined with an abundance of subsoil waters and their proximity to the surface, a virtually unique soil saturation and associated bogging down of the surface are thus produced.

Given the paucity of research in this area, we designed a 6 month study in a Portneuf subsoil treated with three levels (1%, 2%, and 10% w/w ratio) of a biochar pyrolyzed from switchgrass (Panicum virgatum) at 350 °C and steam activated at 800 °C to measure the abundances of five genes involved in N cycling.

Soils with clay subsoil layers or "claypans" encompass a large global area and may be more susceptible to surface compaction and N losses due to perched water in the surface horizons caused by the relatively low hydraulic conductivity of the claypan.

The Glenrothes area's geology is predominantly made up by glacial deposits with the subsoil largely consisting of boulder clay with a band of sand and gravel in the area to the north of the River Leven.

The very words dig and digging may give the impression to many that excavation is merely a matter of shifting away the soil and subsoil with a spade or shovel; the titles of such admirable and widely read books as Leonard Woolley's Spadework (1953) and Digging Up the Past (1930) and Geoffrey Bibby's Testimony of the Spade (1956) might appear to give credence to that view.

In this paper we show the amount of information that can be extracted from a few recordings of ambient tremor collected on the tower and on the surrounding subsoil with a single pocket seismometer in a few minutes, during a leisure visit.

The simulation is using this model to accurately estimate the natural frequency of these slender structures, as a function of the interaction of the foundations with the subsoil.