Soilquality.org

Soil Quality for Environmental Health

WebNCERA-59 Scientists, and Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign. This site designed …

Actived: 7 days ago

URL: http://www.soilquality.org/

Soil Quality: Management: Nutrient Management

WebNutrient management is the process of managing the amount, source, timing, and method of nutrient application with the goal of optimizing farm productivity while …

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Soil Quality: Indicators

WebOrganic matter, or more specifically soil carbon, transcends all three indicator categories and has the most widely recognized influence on soil quality.Organic …

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Soil Quality: Tools: Lab-based Assessments: SMAF

WebThe Soil Management Assessment Framework (SMAF) provides site-specific interpretations for soil quality indicator results. Because the definition of soil quality for your site depends on your …

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Soil Quality: Tools

WebIn general, the development of soil quality assessment tools has followed a paradigm for sustainability. They are: issue driven - soil degradation fuels development. …

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Soil Quality: Soil Functions: Nutrient Cycling

WebNutrient Cycling. Soil stores, moderates the release of, and cycles nutrients and other elements. During these biogeochemical processes, analogous to the water …

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Soil Quality: Management: Soil Management Practices

WebUpdated: September 19, 2011. This site is a collaboration between the NRCS East National Technology Support Center, NRCS National Soil Survey Center, ARS National …

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Soil Quality: Soil Functions: Biodiversity & Habitat

WebLinkages between soil quality and plant, animal, and human health. In: Methods for Assessing Soil Quality, SSSA Special Publication 49. Pankhurst,C.E. 1997. …

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Soil Quality: Indicators: Respiration

WebHome > Indicators > Respiration Respiration. What it is: Carbon dioxide (CO2) release from the soil surface is referred to as soil respiration. This CO2 results …

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Soil Quality: Indicators: Soil Enzymes

WebSources of soil enzymes include living and dead microbes, plant roots and residues, and soil animals. Enzymes. stabilized in the soil matrix accumulate or form …

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Soil Quality: Basics: Value of Soil

WebNutrient cycling, water regulation, and other soil functions are normal processes occurring in all ecosystems. From these functions come many benefits to …

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Soil Quality: Indicators: Total Organic Carbon

WebCarbon sources in the active pool are relatively easy to break down. SOM contains approximately 58% C; therefore, a factor of 1.72 can be used to convert OC to …

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Soil Quality: Basics

WebSoil Quality Basics. Soil quality is the ability of a soil to perform functions that are essential to people and the environment. Soil quality is not limited to agricultural …

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Soil Quality: Basics: Definitions

WebTaken together, these two definitions means that soil quality is the ability of the soil to perform the functions necessary for its intended use. Probably the most …

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Soil Quality: Resources: Technical References

WebFarmer-based assessment of soil quality: A soil health Scorecard. In: Doran, J.W. and A.J. Jones (Eds). Methods for Assessing Soil Quality. SSSA Spec. Pub. 49. …

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Soil Quality: Management: Cover Crops

WebCover crop residues protect soil from water and wind erosion, enhance soil organic matter, biological activity and soil aggregation, and increase soil water availability …

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Soil Quality: Indicators: Soil pH

WebWhat it is: Soil pH generally refers to the degree of soil acidity or alkalinity. Chemically, it is defined as the log10 hydrogen ions (H+) in the soil solution. The pH …

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Interpreting Indicators

WebInterpreting Indicators. Scoring of indicators is necessary to interpret how each measure relates to the soil function of interest and to allow indicators to be …

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Soil Quality: Indicators: Earthworms

WebEarthworms play a key role in modifying the physical structure of soils by producing new aggregates and pores, which improves soil tilth, aeration, infiltration, and …

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Soil Quality: Indicators: Bulk Density

WebWhat it is: Bulk density is an indicator of soil compaction. It is calculated as the dry weight of soil divided by its volume. This volume includes the volume of soil …

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Soil Quality: Indicators: Infiltration

WebWhat it is: Infiltration is the downward entry of water into the soil. The velocity at which water enters the soil is infiltration rate. Infiltration rate is typically expressed in …

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