TY - RPRT TI - Biogeochemical effects of global change on U.S. National Parks AU - R. Herrmann AU - R. Stottlemyer AU - J.C. Zak AU - R.L. Edmonds AU - H. Van Miegroet PY - 2007 DO - 10.1111/j.1752-1688.2000.tb04272.x UR - https://pubs.usgs.gov/publication/70022837 ID - 70022837 ER -