Commentary for papers resulting from the recent symposium on air pollution and vegetation effects in national parks and natural areas: implications for science, policy and management.
Neufeld
Howard S
HS
Department of Biology, 572 Rivers Street, Appalachian State University, Boone, NC 28608, USA. neufeldhs@appstate.edu
Chappelka
Arthur H
AH
D000397:Air Pollution / Q000009:adverse effects*; D044822:Biodiversity; D003247:Conservation of Natural Resources / Q000331:legislation & jurisprudence / Q000379:methods* / Q000639:trends; D004463:Ecology; D011640:Public Policy; D011998:Recreation; D014481:United States