Sentences with phrase «of shallower soils»

Not exact matches

Peas also have a relatively shallow root system which can help prevent erosion of the soil, and once the peas have been picked, the plant remainders tend to break down relatively easily for soil replenishment.

It's where the name The Perennial comes from: A farm field comprised only of annual crops may see crumbly, weak soil from shallow root systems.

But Bordeaux's soil is shallow and gravelly which drains well and keeps the vines dry during the crucial final weeks of ripening.

Elevated levels of radium have been found in groundwater samples from shallow monitoring wells on the Bethpage High School campus and the state DEC plans to take more samples and scan field and soil areas there for more radioactive elements.

In a paper in the current issue of Geology, Mark Sephton of Imperial College London and his colleagues reveal that sedimentary rocks from that period — when they were on the bottom of a shallow sea — contain a pulse, or unusually elevated levels of organic material from soil and plants.

«Similar to the «dead zone» nowadays spreading in the Gulf of Mexico, the soil crisis could have caused a worldwide expanse of uninhabitable low - oxygen conditions in shallow waters,» explains team member Henk Visscher of Utrecht University in the Netherlands.

Dividing the area into a grid of 210 - meter cells, they simulated ground motion for a magnitude 7 Seattle fault earthquake and then further subdivided into 5 - meter cells, applying anticipated amplification of shaking due to the shallow soil layers.

R. J. Rayner and colleagues of the University of Witwaters - rand say that about 3 million years ago the Makapan area was much wetter and greener than it is today; the valley was shallower, the soil was more fertile and there was no pronounced dry season.

Dr Sam Clarke, who led the EPSRC - funded project, says: «Detonations of explosives in shallow soils are extremely complex events that involve the interaction of the shock waves with the surrounding soil, air and water.

Obviously, we don't have interior shallow seaways to dry up today, but one could envision a feedback process where warming accelerates oxidation of soil carbon, which leads to more warming, and so forth.

The Phoenix lander, on course to reach Mars on May 25, will assess habitability of a shallow subsurface environment of icy soil farther north than any earlier mission has landed.

The original proposal of a 15 inch cap of borrow soil, with agricultural limestone and a bactericide below and revegetation by shallow - rooting plants was determined to be «inadequate,... at the least, an additional layer must be added that will act as a barrier for water, plant roots systems and burrowing animals».20 In response Cyprus - Amax proposed, in January 1995, a typical cap section which added a 30 - mil PVC liner overlaid by a geoweb drainage mat with a fabric cover below the 15 inch soil cap.

«If trees have access to a larger volume of soil, this promotes more wooded vegetation whereas shallower rooting, lower precipitation and fire promote less wooded, grass dominated vegetation zones.

That shallower root system inherently absorbs less micro-nutrients from the soil column compared to organically raised plants that are forced to have deeper, more extensive root systems to obtain all of the nutrients the plant needs.

Most soil is limestone in origin, generally shallow and stony, though there are areas of slightly deeper and more fertile calcareous soil.

Covered with shallow, highly erodible soils of low fertility, these heavily forested highlands are very sparsely inhabited.

Both areas are on shallow siliceous soils of low fertility and high erodibility formed on primarily granitic rocks.

In 1966 he made Turf Circle, in which Long convinced his neighbour in Bristol to allow him to cut and remove shallow triangular sections of soil before putting back the grass as a slightly lowered, circular bed.

As part of the solar installation agreement, Chevron will use 30 acres of the plant as a pilot demonstration site to evaluate different soil depths suitable for use at the closure of the mine in an attempt to show that shallower depths of one or two feet will still ensure no adverse impacts to the health of the local community and the environment.

Overnight cooling is confined to a shallow vertical thickness of the atmosphere and is aided by the dry atmosphere (less WV GHE) and dry / sandy soils.

Scottish soil tends to be shallow, while soil further south is deeper and can store larger amounts of rain before becoming saturated.

The meeting will mainly cover the following themes, but can include other topics related to understanding and modelling the atmosphere: ● Surface drag and momentum transport: orographic drag, convective momentum transport ● Processes relevant for polar prediction: stable boundary layers, mixed - phase clouds ● Shallow and deep convection: stochasticity, scale - awareness, organization, grey zone issues ● Clouds and circulation feedbacks: boundary - layer clouds, CFMIP, cirrus ● Microphysics and aerosol - cloud interactions: microphysical observations, parameterization, process studies on aerosol - cloud interactions ● Radiation: circulation coupling; interaction between radiation and clouds ● Land - atmosphere interactions: Role of land processes (snow, soil moisture, soil temperature, and vegetation) in sub-seasonal to seasonal (S2S) prediction ● Physics - dynamics coupling: numerical methods, scale - separation and grey - zone, thermodynamic consistency ● Next generation model development: the challenge of exascale, dynamical core developments, regional refinement, super-parametrization ● High Impact and Extreme Weather: role of convective scale models; ensembles; relevant challenges for model development

«These plants need little water, so they're less heavy than other choices, and their shallow roots require less soil,» notes Lehrer, who is captivated by the range of shapes, colors and textures succulents provide.

to be used for drinking water Less evaporation from the storage reservoir Little loss of land No damage due to dam failure Pollutants such as mosquitoes and snails can not exist in the reservoirs Siltation does not create any problems Less vulnerable / below the ground surface in a shallow soil toward the impervious crystalline sub soil.

Soil vulnerability to climate change is indicated by shallow desert substrates with high soluble salts and the slow recolonisation of disturbed soil surfaces by different algae components (Evans and Belnap, 1999; Johansen, 2001; Duraiappah et al., 20Soil vulnerability to climate change is indicated by shallow desert substrates with high soluble salts and the slow recolonisation of disturbed soil surfaces by different algae components (Evans and Belnap, 1999; Johansen, 2001; Duraiappah et al., 20soil surfaces by different algae components (Evans and Belnap, 1999; Johansen, 2001; Duraiappah et al., 2005).

Where the water table is shallow — that is, where water saturates the soil at or near its surface, as in river valleys — the temperature rise of 2.5 C that Maxwell and Kollet test in the model is the main factor controlling whether the ground shrivels in the sun.

While paperwhites will grow in either shallow pans of gravel and water or in soil, amaryllis should be planted in potting soil.