Acknowledgements

This material is based upon work supported by the Natural Resources Conservation Service, U.S. Department of Agriculture, Conservation Effects Assessment Project for Grazing Lands, under interagency agreement number 67-3A75-13-129. This work was also supported in part by an appointment to Agricultural Research Service administered by Oak Ridge Institute for Science and Education through interagency agreement between U.S. Department of Energy (DOE) and U.S. Department of Agriculture (USDA), Agricultural Research Service Agreement #60-3098-5-002. The authors are grateful to many university, USDA-ARS, and USDA-NRCS collaborators that are listed as coauthors in the cited references by the senior author.
