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Subject
- Environment11
- Boundaries8
- Biology and Ecology7
- Biogeography6
- Conservation of natural resources5
- Planning and Cadastral5
- Ecological zones4
- Hydrography4
- Biotic communities3
- Endangered species3
- Inland Waters3
- Natural areas3
- Rivers3
- Waterways3
- Biodiversity2
- Bodies of water2
- Endangered plants2
- Gap analysis (Planning)2
- Lakes2
- Landscape assessment2