Patterns of Hydrolysable Amino Acids in Soils of North-South and West-East Transects of Continental United States.
Li Ma1, Kang Xia2, Mark A Williams2 and David B. Smith3, (1)Virginia Tech, Blacksburg, VA, (2)School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, (3)U.S. Geological Survey, Denver Federal Center, Denver, CO