Estimation of soil organic carbon in forests of the United States

Grant M Domke, USDA Forest Service, Northern Research Station, Vallejo, CA, United States, Charles Hobart Perry, USDA Forest Service, Vallejo, CA, United States, Brian F Walters, Northern Research Station, Saint Paul, MN, United States, Christopher W Woodall, Northern Research Station, Durham, United States, Lucas E Nave, University of Michigan Ann Arbor, Ann Arbor, MI, United States and Chris Swanston, US Forest Service, Northern Institute of Applied Climate Science, Houghton, MI, United States