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Framework
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Topic outline
Click the linked topics below for additional
resources
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RESOURCES
| Soil Science |
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Measuring Soil CO2
(lab)
Source:
Craig Kohn,
Waterford Union High School
Lab (MS Word)
This lab
measurs CO2 production in soil as a factor in soil productivity
(the more CO2 produced, the less organic matter that is
retained). You can build a simple gas outflux trap by cutting
off the bottom of a 5-gallon pail and drilling a 1 1/8" hole in
the lid. Push the pail a few inches into the soil and plug the
hole with a #6 rubber stopper. You can measure the gas directly
with a CO2 probe (like Vernier) or use soda lime and tritration.
It takes a little time, but students love it and its a great
intro to biological processes that create soil. |
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Soil Testing Products (lab Supplies)
Source: LaMotte Company
Web site:
http://lamotte.com/pages/soil/
Supplies and information related to soil testing. |
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Web Soil Survey (web site)
Source:
USDA Natural Resources Conservation Service
http://websoilsurvey.nrcs.usda.gov
Provides soil data produced by the National Cooperative Soil
Survey. The survey includes air photo and soil descriptions as
well as GIS style maps that you can select to create layers and
analyze your site of choice. The web soil survey could be used
to analyze the various habitats found in your district school
forest. Have students research the type of soils found at a
site, the soil characteristics, and then sample the site to see
how close our profiles match the soil survey.
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