21. Soil surveys were conducted by the NRCS and site index was measured for these soils.22. Work for soil surveys was done at a mapping scale 1 inch to the mile. 23. During the Great Depression, the soil survey efforts slowed. 24. Soil Survey Horizons published his concept in 1993.25. A full list of suffixes is available online as part of the USDA Soil Survey Manual. 26. It was not until after the war in 1945 that the Soil Survey Division was reorganized. 27. Subsequent soil surveys after injection in 2002 to 2005 found levels dropped in these same regions. 28. National and international soil survey efforts have given the profession unique insights into landscape scale functions. 29. From 1982 to 1985, the first soil survey , land resources survey and cultural relics survey were conducted. 30. After graduating, he emigrated to New Brunswick, Canada, where he was employed by a government soil survey .
