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Topic: Soil type

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	Soil Type
		Soil is made up of finely ground rock particles, that are generally grouped according to size as sand, silt, and clay.
		The soil type with the largest particles, sand, determines aeration and drainage characteristics, while the tiniest, sub-microscopic clay particles, are actually chemically active and binds the water and plant nutrients.
		However, not all types of soil are permeable.
	www.mygarden.net.au /flex/soil_type/127/1 (250 words)

	Soil type - Wikipedia, the free encyclopedia
		In terms of soil texture, Soil type usually refers to the different sizes of mineral particles in a particular sample.
		Soil is made up in part of finely ground rock particles, grouped according to size as sand, silt, and clay.
		However, "soil type" in the broader sense refers to a pedological classification of the natural (or human-influenced) soil.
	en.wikipedia.org /wiki/Soil_type (217 words)

	Soil Types
		Soils are much more difficult to identify and classify than these discrete bodies for two main reasons: (i) soil is more or less a continuum covering the land surface of the earth, not a set of discrete entities; and (ii) most of the soil is below ground and therefore not readily visible.
		Soil surveyors who make maps of soils have to use their skills in reading changes in the landscape coupled with auger borings in the soil to identify the nature of the soil.
		This is hardly surprising given the fact that soil formation and soil type are influenced by several key factors: the parent material, usually rock or sediment, but occasionally organic materials such as peat; climate, particularly temperature and rainfall; vegetation and other biota; topography/ relief; time; and, increasingly, the influence of humans.
	www.soil-net.com /advanced/soil_types.htm (628 words)

	Soil Data from FAO & GISS
		The soil type data file was derived from the highest level of the FAO soil units and is based on the work of Zobler (1986).
		Soil texture was derived from the soil profile information associated with each soil unit, using the methodology described in the SOURCE and THEORETICAL BASIS sections of this readme.
		Soil texture, profile depth and average slope values were not available for all of the soil types mapped by Zobler (1986).
	daac.gsfc.nasa.gov /interdisc/readmes/soils.shtml (3556 words)

	[No title]
		Soil horizons or substrata which have a coarse fragment contain greater than 50% by volume shall be considered excessively coarse regardless of their measured permeability or percolation rate.
		As part of a study of bacteria transport in coarse-grained soil, Peterson and Ward (1987, 1989) developed a bacterial transport model in coarse-grained soils to determine whether 4 feet of soil depth was adequate for removing fecal coliform bacteria during high rainfall events.
		Soil clogging causes more of the infiltrative surface to be used, produces an unsaturated flow regime in the underlying soil, and it can enhance treatment at the infiltrative surface.
	www.doh.wa.gov /ehp/ts/WW/TechIssueReports/T-6Type1ASoils-JME.doc (13419 words)

	Soil Type Descriptions
		This miscellaneous land type is consists of deep, sandy beach material that is nearly level and moderately well drained to poorly drained.
		The soil material consists of six to 12 inches of partly decomposed organic material that is underlain by deep lacustrine sand and gravel.
		The native vegetation was a chestnut-oak-white pine type of forest.
	www.goerie.com /greenway/soil_type_descriptions.html (1014 words)

	The Environmental Literacy Council - Soil (Site not responding. Last check: 2007-10-09)
		Vital, healthy soils are necessary to support plant growth and agriculture; without the oxygen and food supplied by plants and crops, life on Earth would not be possible, so the quality of soil ecosystems is a matter of considerable importance.
		Soils are dynamic ecosystems composed of a combination of minerals, organic matter, and living organisms.
		Soils in which all three minerals contribute equally to their texture are loam soils, which are the best for agriculture.
	www.enviroliteracy.org /subcategory.php/36.html (1853 words)

	Secretary of State Kid's Page (Site not responding. Last check: 2007-10-09)
		Chesuncook soil is a soil type that was first identified in Maine and is one of the most widely distributed soil types in Maine.
		Soils are complex “living” systems that provide nutrients to plants and house many organisms.
		The Chesuncook soils formed in dense glacial till derived mainly from slate and are made up of deep, well-drained soils from hills, mountains, and ridges.
	www.state.me.us /sos/kids/allabout/symbols/soil.htm (211 words)

	Soil type Summary
		Soil texture depends on the relative proportions of sand, silt and clay in a soil, as represented in this diagram.
		Soil is made up in part of finely ground rock particles, grouped according to size as sand, silt, and clay.
		However, "soil type" in the broader sense refers to a pedological classification of the natural (or human-influenced) soil.
	www.bookrags.com /Soil_type (312 words)

	Quake: Look up the soil type at your site in the SF Bay Area
		In contrast, soft soil always amplifies shear waves.
		Soft soils tend to overlie stiffer soils and bedrock.
		While the average velocity is within the range of soil-type C, some of the slower-velocity soils within the unit fall into the range of soil-type D. Because the unit is undifferentiated in our digital geologic data set, we have no basis for identifying the slower-velocity soils.
	quake.wr.usgs.gov /prepare/soil_type (483 words)

	Soil Type Testing
		Soil type refers to the texture of your soil.
		Soil is composed of organic matter, mineral particles and air spaces.
		An average soil sample is 45 percent minerals, 25 percent water, 25 percent air, and five percent organic matter.
	www1.umn.edu /webdd/prepcare/soiltypenv.html (516 words)

	Soil type (Site not responding. Last check: 2007-10-09)
		The original classification of 200 soils in the source data was grouped into 6 categories with the help of an expert soil scientist.
		Obviously soil type is related to agricultural landuse, vines grow better on sandy compared with cereals which grow better on heavier more loamy soils.
		The grouping of the 200 soils into a smaller number of categories could be unique for each type of landuse being predicted.
	www.geog.leeds.ac.uk /people/a.turner/projects/medalus3/Soil_type.htm (136 words)

	Eta Soil Type and Moisture, Page 3 (Site not responding. Last check: 2007-10-09)
		Similar soil types are grouped together and the most common soil type group is determined.
		Out of the soil type group, the most common soil type is used as the soil type for the full grid square.
		Sub-grid scale variability in soil type within a grid box is not accounted for.
	meted.ucar.edu /nwp/pcu2/etsoil3.htm (510 words)

	Soil (abstracts)
		The type strain is KBC 1 (CIP 103311).
		Periodic inundation of the soil by Lake Nasser caused dilution and dispersion of the accumulated salts.
		Soil volumetric heat capacity and thermal conductivity of the riser sand were also comparable with values found in the field soil.
	www.iraqfoundation.org /projects/edenagain/bib/soil_abstract.html (3878 words)

	Soils Types Directory \| Soils Types Facts (Site not responding. Last check: 2007-10-09)
		Soil complexes occur that include different soils types with dramatically different characters tics such as wetland and soils mapping, vegetation types, and other site features.
		Many different types of soil consist of clay, pebbles, gravel, sand, not all types of soil are permeable.
		Changes in vegetation types occur across major soil boundaries, therefore identifying soils types may aid in barrier island and the water table supplying the soils with nutrients.
	www.soilndirt.info /soils-types.html (859 words)

	Soil survey - Wikipedia, the free encyclopedia
		It applies the principles of soil science, and draws heavily from geomorphology, theories of soil formation, physical geography, and analysis of vegetation and land-use patterns.
		The information is used by farmers and ranchers to help determine whether a particular soil type is suited for crops or livestock and what type of management might be required.
		An architect or engineer might use the engineering properties of a soil to determine whether or not it was suitable for a certain type of construction.
	en.wikipedia.org /wiki/Soil_survey (482 words)

	Applied Analysis Inc. - Applications: Soil Type Mapping
		IMAGINE Subpixel Classifier was used to map occurrences of a soil type considered to be indicative of unstable conditions that could impede trafficability by heavy off-road vehicles.
		Soil type information is also useful to farmers and land developers.
		The presence of the soil type is useful in mapping the extent of a particular soil profile.
	www.discover-aai.com /applications/soiltypes.htm (312 words)

	Soil
		Soil type is discussed in Chapter 2, but you should be aware that soil affects plant hardiness.
		Most Ohio soils are clay and may require amendments or special preparation before planting.
		Soil fertility and pH also affect plant selection and growth rate.
	hcs.osu.edu /mgonline/Woody/pla01/04pla01.htm (202 words)

	The Dirt on Soil: DiscoverySchool.com
		Every soil type is a mixture of sand, silt, clay, and organic matter.
		This is the soil blown away in dust storms and carried down stream in floods.
		The perfect soil for plants and soil organisms has about the same amount of sand and silt, plus a smaller amount of clay.
	school.discovery.com /schooladventures/soil/name_soil.html (354 words)

	Yardcare.com • all that your yard can be
		But, the truth is, most soil types are various combinations of the three most basic soil types: sandy, loamy, and clay.
		Loamy Soils fall somewhere between sand and clay soils. They are composed of many different sized soil particles, are rich in organic matter, and they combine moisture-holding capacity with good drainage.
		Get a hand full of dirt from the yard on a day when the soil is moist. Squeeze it in your hand. Does it hold together, or fall through your fingers? Does it feel sticky? Just by doing this you can get an idea of what type of soil you have.
	www.yardcare.com /expertadvice/buildinglawn/soiltype.html (830 words)

	Soil Type and Shaking Hazard in the San Francisco Bay Area
		We consider it with type B (both A and B are represented by the color blue on the map).
		Soil types A and B do not contribute greatly to shaking amplification.
		Soft soils tend to overlie stiffer soils and bedrock.
	earthquake.usgs.gov /regional/nca/soiltype (609 words)

	Royal Horticultural Society - Advice: Soil Type, pH and Soil Improvement
		Knowing your soil type and whether it is acidic, neutral or alkaline will help you choose the right plants for your garden and maintain them in good health.
		The mineral constituents of soil are sand, clay and silt.
		The soil’s texture can be described in terms of its proportions of these components, loam containing a mixture of all three.
	www.rhs.org.uk /advice/profiles0106/soiltype.asp (556 words)

	Choosing Landscaping Soil
		This variety of soil is often used in the landscaping industry to help sculpture and nurture a particular style of display.
		This grain of soil consists of both large and small particles which are commonly used to bed down flower beds, shrubs and small trees.
		It is vital that you adapt your garden soil type so it is compatible with the plants, trees, etc you are planing to plant.
	www.beesrockery.com /choosesoil.aspx (634 words)

	Schoolyard Soil Experiment
		They will gather a soil sample from their schoolyard and use a soil chart to identify the soil type.
		After learning about the different groups of soil students will determine what specific types of soil can be found in their schoolyard by using a soil classification chart.
		Observe the differences between the three types of soil that you are given.
	web.stclair.k12.il.us /splashd/soilexp.htm (2994 words)

	LUC-GIS Soil types
		The soil map for North and Central Eurasia is now available to the public and has recently been published on a CDROM entitled: "Soil and Terrain Database for North and Central Eurasia" (FAO and IIASA, 1999).
		The sheets of the State Soil Map of the U.S.S.R (complete set of the map sheets, including both published and manuscript formats, available exclusively at the Dokuchaev Soil Institute) were used to identify FAO texture classes and phases.
		The agenda of the SMR was to correlate the FAO SMW and the SMR legends.
	www.iiasa.ac.at /Research/LUC/GIS/soil_types.htm (712 words)

	Soil Type and Disease Expression
		Summary: A study was undertaken to determine the relationship between concentration of paratuberculosis-infected herds and soil types in Wisconsin.
		Summary: Relationships between soil type and ovine and caprine paratuberculosis in the Avila region (central Spain) were evaluated using data from a cross-sectional study of the most-important diseases of small ruminants in this Spanish region between 1996 and 1997.
		Other variables related to soil and soil usage, and herd size, replacement, main food production and animal species were also introduced into the multivariable logistic regression.
	www.paratuberculosis.net /20how_does_map_cause_disease/soil_type_and_disease_expression (943 words)

	HOME BUILDING : Site Preparation : Digging In the Dirt: Best Type of Soil to Build On : DIY Network
		This is soil that has been altered or brought in from another location.
		Even though it's best to have good virgin soil, but the fact of the matter is that you can achieve greater compaction (figure B) and greater soil values by bringing it in and then physically, from an engineering standpoint, compacting it on the site.
		Now that you know the type of soil you need to build and how it can affect your budget, in the next segment our host will tell you about another very important part of the excavation process -- surveying.
	www.diyhelp.com /diy/hm_siteprep/article/0,2085,DIY_16807_3015851,00.html (818 words)

	Dish the dirt! What's your soil type?
		Sandy soil is pleasant to dig as it is light and airy.
		Silty soil, as you might guess from its name, is often found in and around river beds.
		Or you can accept your soil for what it is and select trees and shrubs that are most likely to grow successfully in those conditions.
	www.greenwoodnursery.com /page.cfm/10133 (708 words)

	Soil Type Overview (Site not responding. Last check: 2007-10-09)
		For watersheds with multiple soil types and land uses, a composite CN (CCN) must be calculated to estimate the infiltration losses.
		Soil type A has a high infiltration rate whereas soil type D usually consists of clays that are nearly impermeable (low infiltration) and produce higher volumes of runoff.
		EPA soil type for an EPA watershed near Provo, Utah.
	www.emrl.byu.edu /gsda/data_soil_type_overview.html (149 words)

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