
	Where results make sense

Topic: Hydric

Related Topics

Balfour

Freedonia

Potassium sodium tartrate

Forio

In the News (Mon 4 Jun 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Hydric soil - Wikipedia, the free encyclopedia
		A hydric soil is a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part.
		Soils with these unique properties are called hydric soils, and although they may occupy a relatively small portion of the landscape, they maintain important functions in the environment.
		First, a soil that is artificially drained or protected (ditches, levees, etc.) is a hydric soil if the soil in its undisturbed state meets the definition of a hydric soil.
	en.wikipedia.org /wiki/Hydric (433 words)

	Background Hydric Soil Information
		Hydric soils are defined as soils formed under conditions of saturation, flooding or ponding long enough during the growing season to develop anaerobic conditions within the upper part.
		Hydric soils usually form in the backwater area, where water is retained for extended periods of time.
		Hydric soil indicators are diagnostic horizons or other unique characteristics that are formed as a result of the hydric soil forming processes.
	courses.soil.ncsu.edu /ssc570/student_projects/hydric_soils/hydricsoils.htm (2662 words)

	Hydric Soils (Site not responding. Last check: 2007-10-30)
		Hydric soils are defined by the National Technical Committee for Hydric Soils (NTCHS) as soils that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part (Federal Register, 1994).
		Hydric soils are identified by examining and describing the soil to a depth of about 20 inches.
		Map units that are made up of hydric soils may have small areas, or inclusions, of nonhydric soils in the higher positions on the landform, and map units made up of nonhydric soils may have inclusions of hydric soils in the lower positions on the landform.
	www.udel.edu /FREC/spatlab/oldpix/nrcssoilde/Descriptions/hydric.htm (619 words)

	Hydric Soils in New Hampshire (Site not responding. Last check: 2007-10-30)
		A hydric soil is a soil that is saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions on the upper part.
		Hydric soils are one of the three diagnostic environmental characteristics used in the identification of wetlands, with the other two characteristics being a prevalence of wetland vegetation and the presence of wetland hydrology.
		When documenting hydric soils in the field, according to recommended practices, test holes are dug to a depth of two feet using a tile spade or soil auger.
	www.des.state.nh.us /factsheets/wetlands/wb-1.htm (868 words)

	Wetland Field Guides Home Page
		Hydric soils are saturated, flooded or ponded long enough during the growing season to develop anaerobic conditions in the upper part.
		Organic hydric soils are generally wet or saturated year round, and consist chiefly of plant material in various stages of decomposition.
		As with organic hydric soils, these surface layers are generally anaerobic and should not be confused with aerated forest floors that are rarely flooded.
	www.dnr.wa.gov /htdocs/lm/field_guides/recognizing/soils.html (1357 words)

	Vermont Wetlands Section - Wetlands Hydric Soil
		If the soil is continually saturated throughout the growing season, the lack of oxygen may severely slow the rate of decay of plant matter and result in the accumulation of a thick layer of peat or muck.
		All organic soils in Vermont are considered to be hydric, or wetland soils.
		NRCS Hydric Soils Homepage: the most current information about hydric soils from the NRCS-USDA Soil Survey Division, including information previously published in "Hydric Soils of the United States", the current definition of a hydric soil, the criteria for hydric soils, the list of field indicators of hydric soils, and the Hydric Soil Tech.
	www.anr.state.vt.us /dec/waterq/wetlands/htm/wl_id-hydricsoil.htm (513 words)

	St. Clair County Hydric Soils (Site not responding. Last check: 2007-10-30)
		A hydric soil is formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic (absence of molecular oxygen) conditions.
		ndrained hydric soils are usually saturated with water and deprived of oxygen.
		Hydric soils are identified by examining and describing the soil a depth of about 20 iches.
	www.compu-type.net /stccswcd/hydric.htm (661 words)

	HYDRIC SOILS LIST FOR RHODE ISLAND-Intro.
		Hydric Soil Definition: A hydric soil is a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part.
		Hydric soils develop under conditions sufficiently wet to support the growth and regeneration of hydrophytic vegetation.
		The criteria used to determine which soil map units are composed dominantly of hydric soils are based on selected soil properties.
	nesoil.com /ri/hydricintro.htm (431 words)

	FDEP - Wetland Delineation - Hydric Soils In Florida: Fact Sheet
		Definition: Hydric soils are those soils that are saturated, flooded, or ponded long enough during the growing season for the development of anaerobic conditions in the topsoil.
		The anaerobic conditions in a hydric soil favor the growth and regeneration of hydrophytic vegetation.
		Generally in loamy and clayey textured soils, the hydric soil indicators must be within 12 inches of the soil surface.
	www.dep.state.fl.us /water/wetlands/delineation/fact.htm (359 words)

	About Hydric Soils \| California NRCS
		"A hydric soil is a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part." (Federal Register, July 13, 1994) A hydric soil is a soil that meets this definition.
		The Hydric status of a soil is an interpretation made by comparing its estimated soil properties with the Hydric Soil Criteria.
		Hydric Soil Field Indicators are soil profile features used to identify and delineate hydric soils in the field.
	www.ca.nrcs.usda.gov /mlra02/abouthyd.html (263 words)

	Massachusetts Hydric Soil List
		Hydric soils along with hydrophytic vegetation and wetland hydrology are used to define wetland boundaries.
		Hydric Soil Criteria is designed to generate a list of hydric soils from the national database of soils interpretation records.
		Criteria 1, 3, and 4 serve as both database criteria and as indicators for identification of hydric soils.
	nesoil.com /hydric.html (756 words)

	State Water Resources Research Institute Program
		By using hydrologic models in combination with hydric soil field indicators, we should be able to estimate quickly and economically how long the major soils are saturated in the Coastal Plain region of North Carolina.
		Hydric soils are defined as soils that formed under conditions of saturation, flooding, or ponding that last long enough during the growing season for anaerobic conditions to develop in the upper part of the soil (NTCHS, 1994).
		To relate the hydric soil indicators to occurrence of iron reduction, sulfate reduction, and denitrification.
	water.usgs.gov /wrri/99projects/state/NorthCarolina.htm (1521 words)

	The microbial activity season in southeastern hydric soils
		The growing season requirement is an often overlooked part of the definition for hydric soils.
		In the technical criteria for hydric soils, specific microbial activity season months have been assigned to each of the soil temperature regimes.
		Our objectives were to determine the portion of the year when southeastern U.S. hydric soils are <5ºC at 50 cm and to estimate rates of microbial activity during winter flooding.
	www.uga.edu /srel/Reprint/2102.htm (183 words)

	USDA-NRCS Hydric Soils of the United States Introduction
		The definition of a hydric soil is a soil that formed under conditions of saturation, flooding or ponding long enough during the growing season to develop anaerobic conditions in the upper part.
		The list of hydric soils was created by computer using criteria that were developed by the National Technical Committee for Hydric Soils.
		Some hydric soils exist for which no Field Indicators have yet been recorded and documented, and to identify these soils as hydric, evidence must be gathered to demonstrate that the definition is met.
	www.kenaiwetlands.net /NRCSHydricSoilsIntro.html (1407 words)

	Hydric Soils \| Ohio NRCS
		Hydric Soil Indicators are primarily morphological indicators used for field identification of hydric soils.
		A hydric soil is a soil that meets the Hydric Soil Definition; presence of the Hydric Soil Indicators is evidence that the definition has been met.
		Map units that have a predominance of components that meet the hydric criteria have a higher probability of being hydric than map units with a small percentage of components that meet the hydric criteria.
	www.oh.nrcs.usda.gov /technical/soils/hydric_soils.html (270 words)

	Soils & Water Science Institute: Hydric Soils
		Morning lectures address background information on soil hydrology, definition and criteria of hydric soils, morphologies of hydric soils, and monitoring instrumentation and data analysis.
		Field indicators of hydric soils will be emphasized throughout the course, and afternoon field trips are designed to provide field examples of material covered during morning lectures.
		Evaluate the installation of monitoring instruments to prove/disprove the presence of hydric soils and/or wetland hydrology.
	conference.ifas.ufl.edu /soils/hydricsoils/index04.html (690 words)

	Reducing environment - Wikipedia, the free encyclopedia
		Reducing conditions can develop in soils that are saturated with water long enough for microbial activity to use up all available dissolved oxygen.
		The result is an alteration of the chemistry of the soil, to a type known as hydric; (see wetlands).
		A reducing atmosphere (or reduction atmosphere) is a condition created in a kiln in order to produce specific effects on the ceramic wares being fired.
	en.wikipedia.org /wiki/Reducing_environment (291 words)

	Statewide Indicators (Site not responding. Last check: 2007-10-30)
		The indicator maps non-wetland hydric soils--soils which are or at one time were saturated with water much of the year.
		The presence of the excess organic material and the absence of free oxygen causes these soils to become highly acidic, which in turn changes their color, permitting detection of hydric soils after they cease to be saturated with water.
		Hydric soils coinciding with areas identified by NWI as wetlands, or which are permanently flooded by standing water--ponds, rivers or the bottom of bays or estuaries--were subtracted; the resulting map comprises non-wetland hydric soils.
	www.dnr.state.md.us /watersheds/surf/indic/md/descrip/md_wetloss_des.html (339 words)

	Hydric Soils Technical Notes \| NRCS Soils
		Hydric Soils Technical Notes contain National Technical Committee for Hydric Soils (NTCHS) updates, insights, and clarifications of the publication "Field Indicators of Hydric Soils in the United States" (USDA, NRCS, 1996 and 1998).
		Technical Note 7: Changes to "Field Indicators of Hydric Soils in the United States" (Version 4.0, March 1998).
		Technical Note 3: Protocol for Requesting NTCHS Changes to "Field Indicators of Hydric Soils in the United States".
	soils.usda.gov /use/hydric/ntchs/tech_notes/index.html (226 words)

	More on Hydric Soils
		A hydric soil is a soil that is saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions.
		The presence of a hydric soil confirms that the necessary hydrology has been present, at least for an extended period in the past.
		These websites also provide extensive information on the soils that are classified as hydric, and the physical indicators used in the field to identify hydric soils.
	www.michigan.gov /deq/0,1607,7-135-3313_3687-10408--,00.html (590 words)

	Hydric Introduction \| Oregon NRCS
		Soils that are sufficiently wet because of artificial measures are included in the concept of hydric soils.
		Therefore an area that meets the hydric soil criteria must also meet the hydrophytic vegetation and wetland hydrology criteria in order for it to be classified as a jurisdictional wetland.
		artificial hydric soil: a soil that meets the definition of a hydric soil as a result of an artificially induced hydrologic regime and did not meet the definition before the artificial measures were applied.
	www.or.nrcs.usda.gov /technical/soil/hydintro.html (1027 words)

	Hydric Soils for Wetland Delineation (Site not responding. Last check: 2007-10-30)
		This course enables non-soil scientists to perform hydric soils determinations and field delineations, using standard techniques of soil science.
		use and identification of hydric soil field indicators.
		use of soil classification for hydric soil identification.
	www.rac.louisiana.edu /wrkshpwebpage/Hydric/hydric.html (75 words)

	Sustainable Campus Initiative, 2001 Green Campus Workshop Acknowledgements
		Hydric soil has a squishy feel to it, and walking on top of it can produce an eerie quicksand feeling.
		These plants have a special type of root that is adapted to live in hydric soils.
		Areas with mineral soil are usually composed mostly of clay and sand combined with hydric soil, with some organic materials near the surface.
	sci.cfans.umn.edu /StudProj/Wetlands2.html (440 words)

	DNR
		A hydric soil is a soil that is, "formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part" (Federal Register July 13, 1994).
		Although hydric soils are typically organic soil types such as peats or mucks, several mineral soil types, including sandy ones, may also be classified as hydric.
		The National Technical Committee for Hydric Soils (NTCHS) has developed a detailed list of all the hydric soil types in the United States and a list of their characteristics.
	dnr.state.il.us /wetlands/ch1c.htm (450 words)

	hydric (Site not responding. Last check: 2007-10-30)
		Nearly all hydric soils exhibit characteristic morphology that result from repeated periods of saturation and/or inundation for more than a few days.
		Hydric soils contain many minerals such as quartz, feldspar, etc. These soils also contain large amounts of organic matter because the lack of oxygen in the soil promotes the build up of organic material.
		A hydric profile may have different redoximorphic features, containing concentrations and depletions of red and/or gray, or a combination of the two.
	houzi.org /hydric.html (928 words)

	NEIWPCC — Version 3: Field Indicators for Identifying Hydric Soils in NE (Site not responding. Last check: 2007-10-30)
		Field Indicators for Identifying Hydric Soils in New England is written by the New England Hydric Soils Technical Committee and published by NEIWPCC.
		The purpose of this field indicators guide is to make it easier for field personnel to identify and document hydric soils and to provide consistent and reliable evidence as to whether a certain soil meets the definition of a hydric soil.
		Hydric soil determinations can be an important part of wetland delineations.
	www.neiwpcc.org /hydricsoilsvol3.htm (199 words)

	LAB NOTES WEEK 15
		The most recent definition is " A hydric soil is one that has formed under conditions of saturation, flooding or ponding that has lasted long enough during the growing season to develop anaerobic conditions in the upper part.
		However, the duration, depth and frequency of saturation are implicit in the hydric soils field criteria so that it is possible to separate hydric and non-hydric soils.
		The NRCS is charged with the responsibility of developing a list of hydric soil indicators in the U.S. This list of indicators is what wetland scientists use in the field to identify and delineate wetland soils.
	www.uwsp.edu /soils-waste/slevine/soils365/wetlands.htm (839 words)

	Checkbiotech.org (Site not responding. Last check: 2007-10-30)
		The awarded work, entitled "Recovery of photosynthetic activity in 4 grape varieties after a hydric stress event", studied the response to the hydric stress event of the grape, in order to enable suitable land irrigation policies to be made and actions carried out while taking into account the peculiarities of each variety.
		The progression of the hydric deficit in each plant was assessed by means of the daily measurement of the hydric potential before dawn and, when a plant reached the stress interval, it was irrigated immediately.
		From their results the researchers deduced that "the occurrence of a period of hydric stress modifies the hydric relations of the grapevine even when irrigation had been re-established".
	www.checkbiotech.org /root/index.cfm?fuseaction=news&doc_id=10657&start=1&control=219&page_start=1&page_nr=101&pg=1 (561 words)

	Hydric Soils Committee Home Page \| Mid-Atlantic Hydric Soils Committee \| US EPA
		In an effort to standardize the study and identification of Hydric Soils, the Mid-Atlantic Hydric Soil Committee was created in March of 1996.
		Members work together in an effort to pursue and identify important research needs and to establish a collection of information from which to better identify hydric soils in the field.
		It outlines hydric soil indicators for the Mid-Atlantic region and offers graphic demonstrations of these descriptions.
	www.epa.gov /reg3esd1/hydricsoils/index.htm (197 words)

	Hydric Soils Exercise (Site not responding. Last check: 2007-10-30)
		Begin by opening the homepage for hydric soils at the USDA Natural Resources Conservation Service.
		For the Osage Soil, identify the hydric criteria numbers and explain what they mean--see hydric criteria.
		Revisit the homepage for hydric soils at the USDA Natural Resources Conservation Service.
	academic.emporia.edu /aberjame/wetland/soils/soils3.htm (426 words)

Try your search on: Qwika (all wikis)