Subjects: 54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 01 COAL, LIGNITE, AND PEAT ACID RAIN
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Subjects: 54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 01 COAL, LIGNITE, AND PEAT AIR POLLUTION
Subjects: 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT AIR POLLUTION
Subjects: 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES AIR POLLUTION; BIOLOGICAL INDICATORS
Subjects: 54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT. AIR POLLUTION; BIOLOGICAL INDICATORS
Subjects: Climate Indicator; Ecological Indicator; Environmental Gradient
Subjects: Ecological Neighborhood Model; Epiphytes; Forest Planning
Subjects: Dispersal Limitations; Epiphyte; Forest Canopy
Subjects: Canyonlands National Park, Utah, USA; Cryptogamic Crusts; Land-Use Change