TY  - RPRT
TI  - Effects of air pollutants on cold-desert cyanobacterial lichen crusts and rock lichens: chlorophyll degradation, electrolyte leakage, and nitrogenase activity
AU  - J. Belnap
PY  - 1990
UR  - https://pubs.usgs.gov/publication/70123839
ID  - 70123839
ER  -