Subject
Ponderosa pine
10
Range management
10
Forest management
9
Forest ecology
8
Forests and forestry Fire management
8
Fire ecology
7
Forest fires Environmental aspects
7
Forest surveys
7
Forests and forestry
7
Public lands Management Public opinion
7
Forest fires
5
Mountain pine beetle
5
Public lands Recreational use Public opinion
5
Public opinion
5
Restoration ecology
5
Climatic changes
4
Forest nurseries
4
Forest thinning
4
Post-fire forest management
4
Soil conservation
4
Douglas fir Diseases and pests
3
Fire risk assessment
3
Forest fires Mathematical models
3
Forest management Public opinion
3
Forest policy Public opinion
3
Forest reserves Fire management
3
Fuel reduction (Wildfire prevention)
3
Logging
3
Mountain pine beetle Control
3
Pine Diseases and pests
3
Ponderosa pine Diseases and pests Control
3
Ponderosa pine Effect of fires on
3
Prescribed burning
3
Reforestation
3
Santa Rita Experimental Range (Ariz.)
3
Shrubland ecology
3
Soil erosion
3
Trees
3
Trees Climatic factors
3
Wildfires
3
Wildfires Prevention
3
Wildfires Prevention and control
3
Armillaria root rot
2
Black Hills National Forest (S.D. and Wyo.)
2
Climatic changes Forecasting
2
Coppice forests Management
2
Dictation recordings
2
Digital audiotape recorders and recording
2
Douglas fir Effect of fires on
2
Ecology Fieldwork Data processing
2
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