soil

While potassium is present in most rocks and soils, the ore is often mined from ancient sea beds and salt lakes.

In areas of poor soils, within two years of cultivation, synthetic nitrogen and mineral fertilizers have to be applied heavily.

This process is called chemosynthesis, and a lot of different microbes can do it, microbes living in rocks and soils all over the world.

It would be very wrong to think of soils as just a collection of fine mineral particles.

methods, aided by a few lucky finds from peat-bogs, deserts, and frozen soils, is able to fill up a good deal of the gap.

Secondary pollution was one of the key issues for the completely bioremediation of soils.

The results also showed that there was no organochlorine pesticide residue in major tobacco growing soils in Yunnan.

Recycled food organics are composted to produce a valuable soil conditioner product to improve the health and productivity of our soils.

The shear wave velocity in soils was the main parameter generally used in soil mechanics researches and geotechnical engineering practices.

Heavy metal polluted soils have been a serious problem to the global ecology and environment safety.

Studies show that this time-dependent wall displacement is mostly likely due to undrained creep of clayey soils surrounding the excavation.

It favours sandy soils in the warmer, eastern parts of the continent, where it may grow up to 15 metres in height.

Elsewhere, irrigation schemes have already caused salty groundwater to rise towards the surface and contaminate soils.

Wind and spring floods erode soils, exposing underlying layers and premiering new compositions of humus and minerals on the surface.

The atmospheric supply of nutrients is usually small relative to the supply of nutrients found in mineral soils.

The dirt farmers improved the land with dung and other sort of soils.

Phytoremediation is a hot topic and is one of important technologies to control the arsenic contamination in soils.

The central concept of Mollisols is that of soils that have a dark colored surface horizon and are base rich.

After the growth of a lonely tree in two soils, her sweet soul will be dispatched to its final rest.

Phytotoxicity of aluminum(Al) is widely considered to be a serious agricultural problem limiting crop productivity in acidic soils.

The HPLC method can be preferably used for residue measure of roxarsone in soils .

RAW cleans up the affect of contamination on soils, industrial waste, sludge, groundwater, surface water, waste water, and sewage.

As the trees and soils on which the islanders depended disappeared, the population crashed and the survivors turned to cannibalism.

Soil properties change dramatically during urbanization. However, recent knowledge about properties of urban soils is still scarce.

Typically, magnesium levels in soils under no tillage do not change materially from those under conventional tillage .

This effect is again the result of increased runoff and subsurface movement through saturated soils around improperly sited septic tanks.

The discovery would be helpful to a thorough study on the strength theory, deformation and stability analysis in soils.

The kinds and contents of minerals in profile might be increased by aggravation of weathering of the soils.

Breakdown of the source rock might be accelerated by biological mechanisms and by the high partial pressure of CO2 in soils.

Also a larger extent of soils can be used for rice with higher yield and higher price in comparison with upland crops.

Now, reinforced soils have been used widely in road, railway subgrade, slope, retaining wall, bank protection and so on.

The degradation of PAEs in three soils were different. DBP in soils was more readily to be degradated than DEHP.

When a herd grazes an area, the grasses get shortened and shed parts of their carbon-rich roots into the soils.

Yunnan has a high potential to develop organic agriculture due to its abundant biological resources and unique climates and soils.

Of course, you can only use the mountain soil nowadays. "Only the mountain soils are safe for pigs, most other soil is now too polluted. "

Remedying the heavy metal contaminated soils with clay minerals is one of the most effective techniques.

Management and conservation of tropical acid soils for sustainable crop production. Proceedings of a consultants meeting.

The physical, chemical and biological properties of rhizosphere soils of ryegrass were better than those non-rhizosphere soils.

Sod seeding is now a practicable proposition on permanent pastures of the better soils .

Currently nitrogen fertilisers are used to supplement these soils, which can be costly and cause ecological problems.

the ramifications of such effects are ground water protection , erosion control and improvement of the soils ' nutrient supplying abilities.

The bioventing is one of the most effective methods of cleaning petroleum contaminated soils.

Correlation analyses indicate a strong fixation ability of iron minerals to metals for soils and sediments.

These soils are unique in their mineral make-up and are the cornerstone of our wines' special quality.

The sloping ditch edges as shown in the figure tend to reduce the amount of crumbling that occurs in certain soils.

The obvious time characteristics of the soft soils as well as its rheological properties under different stress levels are demonstrated.

Soils exposed to the elevated carbon dioxide were found to contain more fungi and higher levels of activity of a carbon-degrading enzyme.

The main engineering geological which probably arise during the shaft building through the thick over soils are analyzed.

To do conventional composting on alkali spots is an economical code of rapid vegetation rehabilitation in soda meadow alkaline soils.

Developers should exploit fertile land in an uncontaminated way, in case of impoverishment of the soils in the future.

Drought risk also increases with warming: even where rainfall does not decline, increased evaporation dries out the soils.

Avoid adding peat moss to clay soils since it may retain so much water that the roots drown or rot.

Methane productivity of two rice soils were investigated under laboratory condition using anaerobic incubation method.

The settlers first planted the loamy, fertile soils that extended in an arc from Georgina through Alabama into northeastern Mississippi.

Of course i am speaking of real teas, the ones that have been grown on good soils and made according to a strict order of tea processing.

This paper reviewed the principles of electrokinetics and its application in remediation of contaminated soils and groundwater.

Different from natural soils, the damage of cementation should be considered in the strength mechanics of lightweight bead-treated soil.

Fast-growing on deep, well-drained soils in montane areas with a warm, moist climate, but intolerant of poor soils and cold, drier climates.

Laboratory soil column experiments by layers are used to reveal the migration of petroleum hydrocarbons contaminants in unsaturated soils.

Some soils are notoriously deficient in micro nutrients and are therefore unable to support most plant life.

Among the alder's valuable ecological contributions is its capacity to fix nitrogen in nitrogen-deficient soils.

Most telling are the red oxidized paleosols (ancient soils), which contain beautifully preserved, vertically oriented casts of roots.

The chloroform fumigation-incubation method was used to measure the biomass-C and-N of soils with different fertility levels.

For use on synthetic and cotton fabrics with heavy soils like uniforms, napkins and tablecloths in a wide range of temperatures.

It lacked the intensely blue atmosphere of the rival vale , and its heavy soils and scents; the new air was clear, bracing, ethereal .

Soils start to dry from the surface but subsoils may remain wet so that rice roots can absorb available water.

Organochlorine pesticides(OCPs)in sediments and sewage irrigated area soils from Urumqi Shuimohe river were determined by means of GC-ECD.

Riprap embankment is one of general coastal projects, and explosive compaction is used in foundation treatment of soft soils.

Known for tolerating poor soils and cold climates, aspens flash yellow against their white bark in an unmistakable sign of coming winter.

She says that the goods and services provided by nature - like clean air, rain or fertile soils - should not be taken for granted.

The deformation and failure properties of natural soils are influenced by many complex factors, which can be summarized into five aspects.

Sandy or gravelly soils near the sea. Fujian, Guangdong, Hainan, Taiwan [Vietnam].

Expansive soil, one of the special clay soils, had caused many problems to foundations and slopes.

By means of taxonomy and numerical classification, the soils in Hanzhong Basin were studies.

It was shown that the swelling-shrinkage deformation of expansive soils was not completely reversible.

It is used to put out the initial tire of soils, flammable liquids, organic solids, gases, and electrical equipment.

Some countries with the greatest food needs -- China, India, Brazil -- have soils that are naturally low in potassium.

The potential for toxicity and the fate of metals in the soils is dependent upon the ability of the metals to desorb into the aqueous phase.

But if the Maya-lowland soils were dusted with volcanic ash every few years or even decades, they would have been periodically enriched.

trees and soils, methane could be coming out of the permafrost in Siberia.

ROAD CONSTRUCTION AND MAINTENANCE EQUIPMENT. SOILS STABILIZATION OR RETREAD PROCESS : MILLING PLANERS, COLD PLANING. TERMINOLOGY.

Compared with the natural soils, the physical, chemical and biological properties of the urban soil have occurred significant changes.

Some parts of Australia are dry because rainwater seeps quickly through sandy soils and into the rock below.

The consequences of the potential eco-environmental risk of heavy metals in soils have been proved by previous research.

Individual composting systems can be relatively easy and inexpensive, and provide quality inputs for garden soils.

The soil is fine grained if it contains 50% or more fines. Follow the procedures for identifying fine-grained soils of Section 14.

Potash is a catch-all name for compounds rich in potassium used to replenish tired soils and boost production.

To achieve spatial soil prediction, therefore, the membership values of the sampled soils must he transformed before interpolation.

Conclusion Water content of highway roadbed filling soils can be tested nondestructively and quantitatively using ground-penetrating radar.

Only soils which become strongly attached to coatings at elevated temperatures would be difficult to remove by laundering.

Indirect sources include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rainwater.

We'd lay on top of that the soils and the waters and illuminate the landscape.

The rest is taken up by terrestrial vegetation and soils or remains in the atmosphere, increasing the greenhouse effect.

This study measures suction in the laboratory of four colluvium soils taken from middle and northern parts of Taiwan.

Distribution characteristics of heavy metals in soils of fast- urbanizing regions are discussed with Kunshan as a case for study.

If we cannot produce higher crop yields with less water and conserve fertile soils, many agricultural areas will cease to be viable.

Elevations of sulfurous layers in acid sulfate soils: What do they indicate about sea levels during the Holocene in eastern Australia?

In spite of the direct source of available Mn, exchangeable Mn contributed little to Mn availability due to its low content in soils.

Earthworm populations in arable soils in the United States may be destroyed by frost .

They generate the humus soils across the land masses of Earth .

Disturbed Lands Restoration and AML ; Geology and Soils Programs ; Minerals Management Programs; Publications; Park Geology Tour.

This program generally focuses on the scientific classification of soils. soil properties. and their relationship to agricultural crops.

Bioventing is an effective and inexpensive in-situ remediation technology for contaminated soils.

As the primary container of heavy metals in urban environment, urban soils can reflect the status of contamination of heavy metals in urban.

The soil-water characteristic curve (SWCC) is an important constitutive feature of unsaturated soils.

Incomparison with the Changbai Mountain soils, Xishuangbanna forest surface soils are more sensitive to the Streptomycin sulfate.

When cultivated and stripped of their dense vegetative cover , soils of the humid tropics quickly lose their fertility .

The mycelium infuses all landscapes, it holds soils together, it's extremely tenacious. This holds up to 30, 000 times its mass.

any of various chiefly American small shrubby oaks often a dominant form on thin dry soils sometimes forming dense thickets.

Synposis Low category classification of soils serves as a bridge between the soil classification and land use.

Static adsorption experiments were performed to investigate the adsorption characteristics of ammonium on soils and ditch sediments.

These results provide the foundation and references for the seismic design of shallow underground structures in the liquefiable soils.

Easter , of all Pacific islands , has the least input of dust from Asia restoring the fertility of its soils .

The greens inhabit areas covered with grass and relatively wet soils, but the pink morphs prefer gardens, drier areas, and woodlands.

Phytoremediation is an effective method to remedy pesticide-contaminated soils.

Fertilizers and soils conditioners. Determination of calcium by atomic absorption spectrometric method.

The Arctic's frozen soils and wetlands store twice as much carbon as is held in the atmosphere.

The result can be used to predict sorption kinetics of phenanthrene and naphthalene to loess soils and, .

Ammonia is emitted by soils and animals, including cows, and is the primary neutralizer of atmospheric acidity.

This species is an indicator of saline and alkaline soils and is a good fodder plant.

Extraction and identification of root exudates from plants grown in soils is one key step to investigate rhizosphere nutrition.

A second type of galvanic corrosion occurs when a single type of metal encounters soils of varying composition.

Each climatic environment places its own stamp upon the soils developed there.

Unsaturated soil from a geotechnical engineering viewpoint has different behavior from the soils that are saturated.

No-till crop production onfine-textured, poorly drained soils can be particularly problematic, often resulting in decreased yields.

To improve clay soils, mix in garden waste or other organic matter and turn the soil deeply in the fall.

He made earth colors from clay and other soils.

The product is a concentrated alkaline cleaner and degreaser specially formulated for the removal of heavy soils, grease and oils.

The confused concept is clarified; and suitable stress variables in establishing the constitutive model of unsaturated soils are proposed.

The polycyclic aromatic hydrocarbons (PAHs) were easier enriched than monocyclic aromatic hydrocarbons in the roadside soils.

The bioavailability of heavy metals (HM) in soils and sediments could be evaluated by single chemical extraction methods.

These results showed that the transformation of iron oxides was important factor controlling P availability in in flooded soils.

Unless there is a bridge, tunnel, or other special structure, this roadbed is constructed of in-situ soils or on earth embankments.

another source is the activities of industry and agriculture, which overlaps on natural soils through anthropogenic activities.

Data quality objective summary report for designation of saturated soils and associated waste at the DNAPL investigation wall.

On all but the most favorable soils, Delaware should be grafted on a phylloxera-resistant rootstock to ensure vigorous growth.

In agricultural systems, this symbiosis is especially important for the uptake of phosphorus, particularly from low P soils.

The results showed that infiltration ability of non-water-repellent soils increased with the increase of mineralization degrees.

Younger nutrient-rich rocks are found in a narrow belt along the mountain range, which explains why certain soils are very nutrient-rich.

The batch experiment was performed to investigate the adsorption characteristics of methyl tert-butyl ether(MTBE) in different clayey soils.

Soil dynamic parameters are important indicators that characterize mechanical property of soils under dynamic action.

The dynamic interaction between structures and layered soils during earthquakes was studied analytically .

The livestock sector is already eligible for carbon finance, but we have made no such progress for arable agriculture and soils.

Many different grape varieties, Growing in Widely differing soils And microclimates, yield an Amazing range of different wines.

The red color is due to oxides of iron, magnesium, and aluminum, which in some such soils form a hard crust (LATERITE) at he soil surface.

A technique using small amounts of fertiliser, pioneered by African agricultural scientists, is boosting crop yields in degraded soils.

The problem is magnified in areas where rainfall during the growing season is intense, plants are shallow rooted and soils are sandy.

Biologists suggest that the plants evolved the ability to capture prey as a way to adapt to living in moist, nutrient-poor soils.

Moist saline-alkaline soils in mountain ravines, wastelands, beside water, roadsides. Qinghai (Qaidam Pendi), N Xinjiang [C Asia].

Sulphur is uniformly distributed in the red soils, the SO42- applied to the tobacco soils intended to move down to the deeper soil layer.

However, the mineral K could not be released in the soils inoculated with sterilized silicate bacterium or without silicate bacterium.

Freezing-thawing induced changes in strength of two over consolidated soils were studied.

The exploitation of salts and saline-alkaline soils has reached the stage of comprehensive use and total development.

Polychlorinated pesticides and herbicides are of important organic pollutants in soils owing to their poor biodegradability.

Calcium-rich foods, required by the adult wood thrush and its young, are harder to find in soils leached by acid rain.

The mechanism of formation of shear band in cohesionless soils is presented and verified by a fully coupled FEM procedure.

Volatile contaminants exist in soils in three possible forms: dissolved in water , volatilized as vapor, and adsorbed by solid particles.

The results show that the strength index for calculating the localization of soils can satisfy the security of foundation pits.

Phytoremediation involves the use of plant for removing pollutants from soils and water and makes environmental remediation.

Loess-paleo soils sequence is the palaeoclimatology time Asia winter monsoon and the summer monsoon environment effect direct-reflection.

Sugar-factory lime sludge had a more favorable influence in improving the structure of acid soils than limestone.

This treatment would be particularly applicable in acidic soils.

So, we got a rapid, precise method of determining moisture content in soils with the microwave oven method.

Foods pick up iodine from the soils where they grow (or, in the case of seafood, from seawater).

Piezometers can be open stand pipes if the embankment soils are pervious and homogeneous.

This paper gives a parameterization of frozen soils model for study of the interactional cycle.

Cars driven near the stream damage plant life, compact soils, damage tree roots, and create erosion.

The measurement ranges are suitable for soft rocks and similar materials or soils with satisfactory repeatability and stability.

On the basis of the above findings, the influence of aggregate size on the strength of studied soils was analyzed and discussed.

As the removal of soil organic matter and soil oxide, the absorption capacity of soils on such antibiotics declined.

Discussion on "Elastoplastic constitutive model of unsaturated expansive soils"

However the contribution of DOM to microbially mediated C and N transformations in paddy soils is not quantified.

It is of great importance to monitor the ionic contamination in saturated sandy soils in situ.

The entrances are constructed in deep cofferdams in the soft soils , directly located along rivers with potentially very high river levels .

That could be an important mechanism of paddy soils reducing greenhouse gas evolution.

Submerged conditions enable organic matter to accumulate in soils, which contribute to carbon sequestration.

Gobi desert, strongly saline-alkaline sandy soils. Xinjiang [Kazakhstan, Uzbekistan].

Fertilizers and soils conditioners. Solubilizing of calcium and magnesium by hydrochloric attack.

The major characteristics of soils are texture, acidity, nutrient content, gaseous content, and moisture content.

As for nitrogen remainder in soils, the difference between the soil cylinders and the pots is remarkable.

When waves propagate over a porous sea bed, the strength of soils in seabed will vary non-uniformly with depth.

This paper studied the effects of interaction of phosphorus and cadmium on the growth of spinach in calcareous soils through pot experiment.

Groundwater----Subsurface water that occurs beneath a water table in soils, rocks, or in fully saturated geological formation.

This genus is found on poor, dry soils in areas of low rainfall, but does not usually penetrate into true desert.

The main soil types are mountain yellow-brown earth and limestone soil, and mountain marshy soils in localized areas.

Pipe jacking in soft soils may induce ground movements, including ground settlement and axial movement of soils below the ground surface.

its positive environmental effect: remediation of contaminated soils, and preventing soil and water losses.

Freshwater and marine resources are increasingly polluted; soils and once-prolific fisheries are growing barren.

The average migration quantity of DOM to the heavy metals in soils decreased as the extension of time.

If the soils weak and column loads are great, the required footing areas become so large as to be uneconomical.

To recover heavy metal contaminated soils was a hot topic in environmental science.

all peach varieties tried in Liaocheng are troubled with iron chlorosis due to the highly alkaline soils.

Although volcanic soils cover just one percent of the Earth's land surface, they support roughly 10 percent of its population.

Prior to this eruption, the mountain's dangers had been largely forgotten as its volcanic soils supported abundant agriculture.

The effects of accompanying anions on Cu specific adsorption in soils were investigated using a constant flow leaching method.

SOILS INVESTIGATION AND TESTING. DETERMINATION OF DENSITY OF FINE SOILS. CUTTING CURB, MOULD AND WATER IMMERSION METHODS.

Acid or alkaline soils are a factor that must be assessed for many plants to thrive.

But on soft soils, vibrations from long-period seismic waves are amplified, possibly exacerbating the swaying of skyscrapers.

The mechanical characteristics of natural soils are significantly affected by their structure.

as for mathematical modeling , the deterministic models were adopted to fit and predict the breakthrough curves of cadmium in soils.

Phosphorus (P) deficiency and aluminum (Al) toxicity are two major limiting factors to plant growth and productivity in acid soils.

The Unified Soil Classification System classifies all soils as coarse, fine- grained, or predominantly organic.

Silicosis is seen in horses associated with inhalation of dust from certain cristobalite-containing soils in California.

And it has many victims: a warming atmosphere, sullied soils and water, and fragile societies.

The rocking vibration analysis of rigid strip foundation resting on saturated soils is studied under conditions of plane strain.

Effect of organic materials on the composition characteristics of micro-aggregates in albic soils and their nutrient contents.

In Tianjin Port, the foundation soils are soft clay with under consolidated condition, low bearing capacity and high water content.

The results show that lateral deformation reduces with the increase of depth and degree of improvement soils.

Traditional plowing is utilized to break up dirt clogs in heavy clay soils and to kill competing weeds.

The results indicate that both the wetting and the drying of expansive soils can induce the production and closure of the cracks.

there exist no direct methods enabling the determination of the organic phosphorus content of soils.

From the engineering case and field tests, soft soils in Nanning should be particularly studied by engineers.

their very presence proves they're an excellent erosion control tool already adapted to the local environment of soils and slope.

It is shown that deformation behavior and strength characteristics are affected by water content (suction)of unsaturated expansive soils.

He explains that sewers would clog, underground streams would flood subway corridors, and soils under roads would erode and cave in .

China fir were planted at the soils from different rocks by the experimental ecological method.

Reinforcement of soils by inclusion. Nail pull out. Test with constant rate of displacement.

soils have a high shear strength and unconfined compressive strength whether saturated or not, and possess better water stability.

Concentrated cleaning action breaks down stubborn soils, helps reduce spotting and streaking. Convenient and economical ispensing.

The webpage offers the information of Soils, including soil survey, soil education, technical references etc.

The existing of stubble on soils resulted in the increase of soil roughness, and correspondingly the intensity of wind erosion was small.

Closure on "Elastoplastic constitutive model of unsaturated expansive soils"

Dry sandy soils, near seashores; below 1200 m. Anhui, Fujian, Jiangxi, Taiwan, Zhejiang [Indonesia, Malaysia, Philippines; Pacific Islands].

Alluvial soil was found to be more likely to show a greater deficiency of magnesium than glacial till soils.

biocontrol bacterial treatment had less effect on actinomycetes populations in different soils samples.

In the deep excavation engineering, excavation and dewatering will cause settlement of surrounding soils.

Freeze-thaw process might influence soil's aggregate and micropores, thus influence cations' adsorption on the soils.

To measure entirely hydrocarbon concentration in soils is the premise to evaluate petroleum pollution in soils .

Should the prevalence of lead in city soils discourage communities and schools from building gardens in urban wastelands?

Most native grasses are warm season grasses and thus require warm soils for successful germination and establishment.

Fe deficiency is a global and important nutritional problem particularly in crop plants grown on calcareous soils.

This implies that , the bigger the diameter of gravel in soils, the smaller its volume strain from liquefaction.

The results from two methods are generally in agreement and can meet the dema nds for expansive soils analysis in engineering geology.

The sorption amounts of IHP on neutral and alkaline soils were extremely high and might involve the precipitation of calcium- IHP .

Application of high-stress tolerant tree species is a key technique for the restoration of degraded soils.

In Andhra Pradesh, West Godavari district produces the best tobacco in the northern lights soils.

These two subjects are combined in Crop and Soil Sciences to develop an integrated approach to the management of crops and soils.

Finally, compared with results of adsorption test the scanning electron images of expansive soils were analyzed.

The presence of radionuclides in soils often jeopardizes ecosystem stability and renders a serious risk to human health.

Some environmentalists and government officials blame landslides on deforestation, which they say loosens soils on mountainsides.

We cultured two true thermophilic fungi from the geothermal soil samples, and these fungi were never isolated from cooler soils.

Most of our vines are grown in black, clay soils using advanced trellising and are all pruned by hand.

The corrosion rate and corrosion pitting depth of zinc in different humidity soils with SRB are larger than those in soils without SRB.

They must campaign to repair the ozone shield, halt the greenhouse effect, preserve soils and save the tropical rainforest.

levees are needed in floodplains , where soils tend to be wet and can change every 100 yards along a proposed route.

Agronomy. range and crop science on the chemical. physical. and biological relationships of crops and the soils nurturing them.

Gobi desert, saline soils in deserts, sunny slopes. N Xinjiang [Kazakhstan, Mongolia, Russia (W Siberia)].

This runoff , of course, was absorbed by the accumulated soils of the farm plots.

Soil stabilized with AFS has higher early lime soils strength and better anti cracking characteristics than lime soil.

This inhibition by both inhibitors significantly decreased the ammonium oxidation rate constants in all six soils.