University, Subject, Country, Region, World
World 60.078 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 6 years. As of Feb 03, 2025, 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 (870.057) 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].
* Total H IndexRankings
Ranking Based On Selection: 1
Gene editing
Epigenetic
Plant stress biology
Gene Therapy
Metrics
H-Index
i10 Index
Citation Counts
194
534
173,264
* Total H IndexRankings
Ranking Based On Selection: 2
Marine Ecology
Metrics
H-Index
i10 Index
Citation Counts
189
1,025
166,947
* Total H IndexRankings
Ranking Based On Selection: 3
Plant Biotechnology/Molecular Genetics/Science Outreach
Metrics
H-Index
i10 Index
Citation Counts
189
729
123,897
* Total H IndexRankings
Ranking Based On Selection: 4
Planten biologie
Metrics
H-Index
i10 Index
Citation Counts
176
553
107,561
* Total H IndexRankings
Ranking Based On Selection: 5
Plant Biology
Metrics
H-Index
i10 Index
Citation Counts
168
487
91,408
* Total H IndexRankings
Ranking Based On Selection: 6
Fisheries
marine ecosystems
conservation biology
Metrics
H-Index
i10 Index
Citation Counts
165
783
155,341
* Total H IndexRankings
Ranking Based On Selection: 7
plant nutrition
Agriculture
nutrient management
rhizosphere
Metrics
H-Index
i10 Index
Citation Counts
162
804
104,374
* Total H IndexRankings
Ranking Based On Selection: 8
Plant biology
Metrics
H-Index
i10 Index
Citation Counts
155
501
104,881
* Total H IndexRankings
Ranking Based On Selection: 9
plant disease and immunity
Metrics
H-Index
i10 Index
Citation Counts
154
419
138,014
* Total H IndexRankings
Ranking Based On Selection: 10
soil
soil ecology
ecosystem ecology
ecology
biodiversity
Metrics
H-Index
i10 Index
Citation Counts
147
331
90,940
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* Total H IndexRankings
Ranking Based On Selection: 11
plant growth
Metrics
H-Index
i10 Index
Citation Counts
147
299
91,114
* Total H IndexRankings
Ranking Based On Selection: 12
Phycology
Aquatic ecology
environmental science
soil science
Metrics
H-Index
i10 Index
Citation Counts
143
1,895
138,213
* Total H IndexRankings
Ranking Based On Selection: 13
Soil Science
Plant nutrition
Environmental Science
Metrics
H-Index
i10 Index
Citation Counts
142
376
69,668
* Total H IndexRankings
Ranking Based On Selection: 14
Redox biology
photosynthesis
stress
respiration
carbon/nitrogen interactions
Metrics
H-Index
i10 Index
Citation Counts
141
416
96,346
* Total H IndexRankings
Ranking Based On Selection: 15
Plant Biology
Plant-Microbe Interactions
Metrics
H-Index
i10 Index
Citation Counts
139
246
106,856
* Total H IndexRankings
Ranking Based On Selection: 16
Plant genetics
plant breeding
plant genomics
comparative genomics
plant evolution
Metrics
H-Index
i10 Index
Citation Counts
139
438
90,209
* Total H IndexRankings
Ranking Based On Selection: 17
sustainable agriculture
Metrics
H-Index
i10 Index
Citation Counts
138
428
91,325
* Total H IndexRankings
Ranking Based On Selection: 18
Bio-organic fertilizers and soil microbiology
Metrics
H-Index
i10 Index
Citation Counts
137
709
64,437
* Total H IndexRankings
Ranking Based On Selection: 19
soil
soil science
soil organic matter
soil health
soil organic carbon
Metrics
H-Index
i10 Index
Citation Counts
137
383
122,805
* Total H IndexRankings
Ranking Based On Selection: 20
Plant ecology
ecophysiology
alpine plant ecology
treeline
Metrics
H-Index
i10 Index
Citation Counts
137
438
75,686
* Total H IndexRankings
Ranking Based On Selection: 21
Soil Science
Metrics
H-Index
i10 Index
Citation Counts
135
572
78,363
* Total H IndexRankings
Ranking Based On Selection: 22
Metrics
H-Index
i10 Index
Citation Counts
134
570
73,660
* Total H IndexRankings
Ranking Based On Selection: 23
Metrics
H-Index
i10 Index
Citation Counts
134
406
67,973
* Total H IndexRankings
Ranking Based On Selection: 24
soil ecology
mycorrhiza
fungal ecology
biodiversity
ecology
Metrics
H-Index
i10 Index
Citation Counts
133
438
78,881
* Total H IndexRankings
Ranking Based On Selection: 25
Aquatic microbial ecology
limnology
estuarine and coastal ecology and biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
133
462
80,165
Jian-Kang Zhu
Metrics
H-Index
i10-Index
Citation Counts
194
534
173,264
Gene editing
Epigenetic
Plant stress biology
Gene Therapy
Carlos M Duarte
Metrics
H-Index
i10-Index
Citation Counts
189
1,025
166,947
Marc Van Montagu
Ghent University
Ghent, Belgium
Metrics
H-Index
i10-Index
Citation Counts
189
729
123,897
Plant Biotechnology/Molecular Genetics/Science Outreach
Chua NH
Rockefeller University
New York, United States
Metrics
H-Index
i10-Index
Citation Counts
168
487
91,408
Daniel Pauly
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
165
783
155,341
Fisheries
marine ecosystems
conservation biology
Fusuo Zhang
China Agricultural University
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
162
804
104,374
plant nutrition
Agriculture
nutrient management
rhizosphere
Richard Dixon
Metrics
H-Index
i10-Index
Citation Counts
155
501
104,881
Jonathan D Jones
The Sainsbury Laboratory
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
154
419
138,014
Richard Bardgett
University of Manchester
Manchester, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
147
331
90,940
soil
soil ecology
ecosystem ecology
ecology
biodiversity
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Joanne Chory
Salk Institute
San Diego, United States
Metrics
H-Index
i10-Index
Citation Counts
147
299
91,114
Ming Li
Northwest A & F University
Yangling, China
Metrics
H-Index
i10-Index
Citation Counts
143
1,895
138,213
Phycology
Aquatic ecology
environmental science
soil science
Fang Jie Zhao
Nanjing Agricultural University
Nanjing, China
Metrics
H-Index
i10-Index
Citation Counts
142
376
69,668
Soil Science
Plant nutrition
Environmental Science
Christine H Foyer
University of Birmingham
Birmingham, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
141
416
96,346
Redox biology
photosynthesis
stress
respiration
carbon/nitrogen interactions
Jeff Dangl
University of North Carolina Chapel Hill
Chapel Hill, United States
Metrics
H-Index
i10-Index
Citation Counts
139
246
106,856
Plant Biology
Plant-Microbe Interactions
Andrew H Paterson
University of Georgia
Athens, United States
Metrics
H-Index
i10-Index
Citation Counts
139
438
90,209
Plant genetics
plant breeding
plant genomics
comparative genomics
plant evolution
Johan Six
Metrics
H-Index
i10-Index
Citation Counts
138
428
91,325
Qirong Shen
Nanjing Agricultural University
Nanjing, China
Metrics
H-Index
i10-Index
Citation Counts
137
709
64,437
Bio-organic fertilizers and soil microbiology
Johannes Lehmann
Cornell University
Ithaca, United States
Metrics
H-Index
i10-Index
Citation Counts
137
383
122,805
soil
soil science
soil organic matter
soil health
soil organic carbon
Christian Körner
Universität Basel
Basel, Switzerland
Metrics
H-Index
i10-Index
Citation Counts
137
438
75,686
Plant ecology
ecophysiology
alpine plant ecology
treeline
Philip W. S. Newall
University of Newcastle
Callaghan, Australia
Metrics
H-Index
i10-Index
Citation Counts
135
572
78,363
John Raven
University of Dundee
Dundee, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
134
570
73,660
Andrew Sharpley
University of Arkansas Fayetteville
Fayetteville, United States
Metrics
H-Index
i10-Index
Citation Counts
134
406
67,973
Matthias C Rillig
Freie Universität Berlin
Berlin, Germany
Metrics
H-Index
i10-Index
Citation Counts
133
438
78,881
soil ecology
mycorrhiza
fungal ecology
biodiversity
ecology
Hans W Paerl
University of North Carolina Chapel Hill
Chapel Hill, United States
Metrics
H-Index
i10-Index
Citation Counts
133
462
80,165
Aquatic microbial ecology
limnology
estuarine and coastal ecology and biogeochemistry