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Subject
- Environment[remove]11
- Imagery and Base Maps8
- Biogeography7
- Vegetation surveys7
- Vegetation mapping6
- Planning and Cadastral5
- Biology and Ecology4
- Air quality management3
- Climate3
- Climatology, Meteorology and Atmosphere3
- Nitrogen3
- Pollution3
- Acid rain--Environmental aspects2
- Greenhouse gases2
- Habitat (Ecology)2
- Vegetation classification2
- Biodiversity1
- Biotic communities1
- Conservation1
- Conservation of natural resources1