Subject
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Climate change
2
Climate changes
1
Climatic changes
3
Climatic factors
6
Coeur d'Alene Nursery (U.S.)
1
Competition (Biology)
1
Composition
1
Computer programs
1
Computer simulation
3
Cones (Botany)
2
Conifers
17
Conservation
3
Container gardening
3
Containerized
1
Control
14
Crown land
1
DDT (Insecticide)
1
Damage
1
Decay
1
Deciduous
1
Defects
2
Deficiency diseases in plants
1
Defoliation
3
Deforestation
1
Dendrochronology
1
Density
1
Detection
1
Development
1
Diagnosis
1
Dieback
1
Diseases
12
Diseases and pests
99
Dormancy
1
Driftwood
1
Eastern black walnut
1
Ecology
7
Economic aspects
6
Economics
1
Ecosystems
3
Education
4
Education (Continuing education)
1
Effect of acid deposition on
2
Effect of acid precipitation on
2
Effect of air pollution on
6
Effect of global warming on
2
Effect of ice on
2
Effect of soil moisture on
1
Effect of solar radiation on
1
Effect of stress on
1
Elm
2
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