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 Jan 30, 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 (873.690) 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
Soils
pollution
biochar
microplastics
Metrics
H-Index
i10 Index
Citation Counts
52
72
10,383
* Total H IndexRankings
Ranking Based On Selection: 2
soil chemistry
soil analysis
phosphorus
plant nutrition
Metrics
H-Index
i10 Index
Citation Counts
36
76
4,386
* Total H IndexRankings
Ranking Based On Selection: 3
soil carbon
nitrogen
biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
30
40
4,442
* Total H IndexRankings
Ranking Based On Selection: 4
Soil science
biogeochemistry
soil biology
Metrics
H-Index
i10 Index
Citation Counts
22
34
2,787
* Total H IndexRankings
Ranking Based On Selection: 5
soil ecology
ecophysiology
ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
17
18
1,045
* Total H IndexRankings
Ranking Based On Selection: 6
Soil Science
Biochar
GHG
Metrics
H-Index
i10 Index
Citation Counts
15
17
2,081
* Total H IndexRankings
Ranking Based On Selection: 7
Plant nutrition
oxidative stress and plant physiology
Metrics
H-Index
i10 Index
Citation Counts
12
15
586
* Total H IndexRankings
Ranking Based On Selection: 8
Soil Biology
Microbial Ecology
Agronomy
Metrics
H-Index
i10 Index
Citation Counts
9
9
402
* Total H IndexRankings
Ranking Based On Selection: 9
soil chemistry
plant nutrition
biostimulants
Metrics
H-Index
i10 Index
Citation Counts
7
5
432
* Total H IndexRankings
Ranking Based On Selection: 10
Soil fertility & plant nutrition
nutrient mgt.
digital agriculture
Metrics
H-Index
i10 Index
Citation Counts
1
1
26
Erik Joner
Metrics
H-Index
i10-Index
Citation Counts
52
72
10,383
Soils
pollution
biochar
microplastics
Tore Krogstad
Metrics
H-Index
i10-Index
Citation Counts
36
76
4,386
soil chemistry
soil analysis
phosphorus
plant nutrition
Vegard Martinsen
Metrics
H-Index
i10-Index
Citation Counts
30
40
4,442
soil carbon
nitrogen
biogeochemistry
Åsgeir Rossebø Almås
Metrics
H-Index
i10-Index
Citation Counts
22
34
2,787
Soil science
biogeochemistry
soil biology
Heidi Sjursen Konestabo
University of Oslo
Oslo, Norway
Metrics
H-Index
i10-Index
Citation Counts
17
18
1,045
soil ecology
ecophysiology
ecotoxicology
Alice Budai
Metrics
H-Index
i10-Index
Citation Counts
15
17
2,081
Soil Science
Biochar
GHG
Franz Walter Rieger Hippler
Yara International
Oslo, Norway
Metrics
H-Index
i10-Index
Citation Counts
12
15
586
Plant nutrition
oxidative stress and plant physiology
Shahid Nadeem
Metrics
H-Index
i10-Index
Citation Counts
9
9
402
Soil Biology
Microbial Ecology
Agronomy
soil chemistry
plant nutrition
biostimulants
Daniel Rexford Nyamekye
Yara International
Oslo, Norway
Metrics
H-Index
i10-Index
Citation Counts
1
1
26
Soil fertility & plant nutrition
nutrient mgt.
digital agriculture