1. 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

2. Soil Restoration Accessing the NRCS web soil survey: http://websoilsurvey.nrcs.usda.gov/app/ Online soil surveys: http://soils.usda.gov/survey/online_surveys/

10. Briefly, some soil terms: Parent material Texture

11. Particle size (textural) distribution classifications

12. Available Water Capacity http://www.okstate.edu/artsci/botany/bisc3034/lnotes/soilwater.gif

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

14. http://www.aragriculture.org/images/fo rage_pasture/management_guides/F orage_Guide8_Figure2.jpg pH effects on nutrients

15. Soil Organic Matter http://www.unl.edu/nac/atlas/Map_Html/Stable_and_Productive_Soils/National/Soil_Organic_Matter_Content/Soil_Organic_Matter_C ontent.gif

17. 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

18. Small-group discussion Camp site soil restoration in Oregon Tropical Agroforestry