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Subject
- Forest management67
- Forest reserves41
- Management27
- Environmental aspects26
- Range management25
- Logging14
- Grazing districts13
- Land use12
- Public lands10
- Grazing9
- Planning7
- Wilderness areas6
- Conservation of natural resources5
- Recreation areas5
- Watershed management5
- Reforestation4
- Diseases and pests3
- Ecosystem management3
- Environmental conditions3
- Forests and forestry3