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- Photosynthesis[remove]6
- Carbon cycle (Biogeochemistry)2
- Climatic changes2
- Ecology2
- Forests and forestry2
- Biochemistry1
- Botany1
- Carbon1
- Carbon sequestration1
- Ecophysiology1
- Evergreens1
- Introduced organisms1
- Leaves1
- Marine algae1
- Photosynthesis--Measurement1
- Quercus rubra1
- Remote-sensing images1
- Research--Methodology1
- Respiration1
- Sea ice1