The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 06, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.911) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
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Wood and biomass chemistry | Analytical methods | Biorefinery | Renewable material
H-Index Metrics
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H-Index67
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i10 Index212
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Citation Counts16,563
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forests | climate change | sustainability | ecosystem services | adaptive managemen
H-Index Metrics
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H-Index67
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i10 Index155
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Citation Counts22,290
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forest ecology | vegetation dynamics | disturbance ecology | ecological restoration | sustainable forest managemen
H-Index Metrics
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H-Index66
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i10 Index141
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Citation Counts14,498
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Rhizobium | Biological Nitrogen Fixation | Soil Microbiology | the N Cycle | Sustainable Agricultur
H-Index Metrics
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H-Index62
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i10 Index143
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Citation Counts13,635
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Plant biology | environmental science | climate change | ozone | biodiversit
H-Index Metrics
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H-Index60
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i10 Index140
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Citation Counts10,303
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Peatland ecology | Forest ecology | Forestry in peatlands | Organic soils | Carbon cyclin
H-Index Metrics
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H-Index57
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i10 Index117
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Citation Counts10,138
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Mobile laser scanning | geomorphology | forestry | urban land use | infratructur
H-Index Metrics
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H-Index56
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i10 Index154
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Citation Counts13,795
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forest governance | REDD+ | adaptation | policy analysis | social network analysi
H-Index Metrics
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H-Index56
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i10 Index132
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Citation Counts13,317
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