Subject
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Climatic changes
3
Climatic factors
4
Computer modeling
2
Computer programs
2
Computer simulation
1
Congresses
1
Conifers
1
Conservation
7
Conservation of natural resources
1
Control
3
Counting
1
Cull tree felling
1
Culture
1
Customer service
1
Data acquisition
1
Databases
1
Debris
1
Decision making
1
Defects
1
Defoliation
3
Demographics
2
Dictionaries
1
Diseases
4
Diseases and pests
4
Driftwood
1
Eastern hemlock
1
Ecological disturbances
1
Ecology
8
Economic analysis
1
Economic aspects
1
Economic development
1
Economic impact
4
Economics
7
Ecosystem management
3
Ecosystems
12
Ecotourism
1
Education
2
Effect of acid deposition on
2
Effect of air pollution on
2
Effect of fires on
1
Effect of soil moisture on
1
Effect of solar radiation on
1
Effects of fires on
1
Electrophoresis
1
Emerald ash borer
1
Emergency management
1
Emissions
1
Endangered plants
1
Endangered species
2
Energy crops
1
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