Ngā kaupapa kua tūtohitia
- Congresses 155 ngā hua
- Forests and forestry 75 ngā hua
- Forest management 49 ngā hua
- Forest ecology 23 ngā hua
- Sustainable forestry 18 ngā hua
- Trees 17 ngā hua
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- History 14 ngā hua
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- Climatic changes 9 ngā hua
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- Forest soils 9 ngā hua
- Research 9 ngā hua
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- Biological control 7 ngā hua
- Deforestation 7 ngā hua
- Fisheries 7 ngā hua
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- Rain forest ecology 7 ngā hua
- Social aspects 7 ngā hua
- Conservation of natural resources 6 ngā hua
- Economic aspects 6 ngā hua
- Forest conservation 6 ngā hua
- Forest productivity 6 ngā hua
- Reforestation 6 ngā hua
- Sustainable agriculture 6 ngā hua
- Diseases and pests 5 ngā hua
- Fertilization 5 ngā hua
- Fishery management 5 ngā hua
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- Forestry engineering 5 ngā hua
- Humus 5 ngā hua
- Logging 5 ngā hua
- Mathematical models 5 ngā hua
- Measurement 5 ngā hua
- Physiology 5 ngā hua
- Simulation methods 5 ngā hua
- Wood 5 ngā hua
- Agricultural ecology 4 ngā hua
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- Crops and climate 4 ngā hua
- Disease and pest resistance 4 ngā hua more…