TY - RPRT TI - Field Evaluations of Sampling Methods for Long-Term Monitoring of Upland Ecosystems on the Colorado Plateau AU - Mark E. Miller AU - Dana L. Witwicki AU - Rebecca K. Mann AU - Nicole J. Tancreto PY - 2007 DO - 10.3133/ofr20071243 UR - https://pubs.usgs.gov/publication/ofr20071243 ID - ofr20071243 ER -