SOIL SECTION    

The Arkansas Envirothon has tried to place all materials available in the Arkansas Envirothon Training Guide online for your convince.   If your computer does not have the Adobe^® Acrobat Reader software installed, you will need to click on the link "Get Acrobat^™ Reader" located to the right, download and install the software.

Note: Some files are quite large.  These files may take a long amount of  time (even hours) to download.  Download times will depend on the speed that your computer is connected to the internet.  We are working to reduce the file sizes to make the time you wait as short as possible..

OVERVIEW

You should visit with your local NRCS office to obtain a copy of the soil survey for your county.  While you are there you should visit with the staff learn about Highly Erodeable Soils, how they are defined and why they are important.

RESOURCE  MATERIAL

Soil Study Outline and Sample Questions

County Soil Survey Manual - Woodruff Co. is furnished in electronic format in case you are unable to obtain a survey manual.
Soil Survey Manual USDA Handbook 18 (Available on the internet at: http://www.statlab.iastate.edu/soils/ssm/gen_cont.html)

Land Judging in Arkansas    B305 (Rev. 12.95) (Available at County Extension Offices)

Prime Farmland List for Your County (Available at Conservation District Offices)

HEL (Highly Erodible List) of Soils for Your County (Available at Conservation District Offices)

SUPPLEMENTARY MATERIAL

Glossary of Soil Terminology   (Link does not work)
   (http://sharon.cares.missouri.edu/Soils/gloss.htm)

The Natural Divisions of Arkansas 8,366 KB

Soil Climate Regimes of the US   1611 KB

Geologic History of Arkansas Through Time and Space 4,786 KB

Keys to Soil Taxonomy 8th ed 1998 1,720 KB
Keys to Soil Taxonomy 8th ed 1998 Errata    6 KB

Field Book for Describing and Sampling Soils    1,547 KB

USDA Service Center GIs Strategy    1,089 KB
Soil Textural Triangle    30 KB

Erosion - Revised Universal Soil Loss Equation - 30 KB

Woodruff County Soil Survey
     Use and Management of Soils in Woodruff Co 145 KB
     Soil Properties for Woodruff Co    107 KB
     Classification of Soils in Woodruff Co    282 KB
     Formation of Soils in Woodruff Co    86 KB
     Glossary of Soil Terms    122 KB

SOIL QUALITY CONCERNS
     Soil Quality Introduction    22 KB
     Soil Quality Concerns - Available Water Capacity    51 KB
     Soil Quality Concerns - Compaction    22 KB
     Soil Quality Concerns - Salinzation    84 KB
     Soil Quality Concerns - Pesticides    56 KB
     Soil Quality Concerns - Biodiversity    58 KB
     Soil Quality Concerns - Erosion 23 KB
     Soil Quality Concerns - Sediment Deposition on Cropland    23 KB

    Indicators for Soil Quality Evaluations 699 KB
    Indicators for Soil Quality Evaluation -Soil pH    65 KB
    Indicators for Soil Quality Evaluation - Infiltration    63 KB
    Indicators for Soil Quality Evaluation - Aggregate Stability    26 KB
    Indicators for Soil Quality Evaluation - Soil Crust    29 KB
    Indicators for Soil Quality Evaluation - Organic Matter    31 KB

Canon Envirothon Core Curricula -   www.envirothon.org/resources/guidelines/soilandland.php (link added Dec. 05)

Updated January 2001

The Envirothon Steering Committee gratefully acknowledges Mr. Alex Winfrey and Dr. Terry Keisling for overseeing the materials in the Soil Section.