1. Troubleshoot any proposal reviews

2. Brief overview of soils

3. Small group discussion of 2 soil restoration papers! Campsite ER and tropical agroforestry!!!

4. Survey students – let’s briefly convene again after class

Soil Restoration

Accessing the NRCS web soil survey:

http://websoilsurvey.nrcs.usda.gov/app/

Online soil surveys:http://soils.usda.gov/survey/online_surveys/

Briefly, some soil terms:

Parent material

Texture

Particle size (textural) distribution classifications

Available Water Capacity

http://www.okstate.edu/artsci/botany/bisc3034/lnotes/soilwater.gif

http://gis2.esri.com/library/userconf/proc98/PROCEED/TO350/PAP333/P33308.GIF

http://www.aragriculture.org/images/forage_pasture/management_guides/Forage_Guide8_Figure2.jpg

pH effects on nutrients

Soil Organic Matter

http://www.unl.edu/nac/atlas/Map_Html/Stable_and_Productive_Soils/National/Soil_Organic_Matter_Content/Soil_Organic_Matter_Content.gif

Some thoughts:

Problems can arise when,

Nutrients are too high, or too low

Soil pH is too high, or too low

Soil texture is too sandy…or too clayey

Moisture is too much….or too little

Organic matter is too much…or too little

Small-group discussion

Camp site soil restoration in Oregon

Tropical Agroforestry