Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Richard Bardgett](https://cdn.adscientificindex.com/pictures/9b/1501925.jpg)
soil
soil ecology
ecosystem ecology
ecology
biodiversity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
331
292
0.882
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Keith Goulding](https://cdn.adscientificindex.com/pictures/2d/4512678.jpg)
Soil science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
218
129
0.592
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Binoy Sarkar](https://cdn.adscientificindex.com/pictures/3e/1260574.jpg)
Soil Science
Environmental Chemistry
Clay Minerals
Enhanced weathering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
202
194
0.960
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Phil Haygarth](https://cdn.adscientificindex.com/pictures/11/1260551.jpg)
soil
water
nutrients
phosphorus
catchments
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
126
0.681
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Karl Ritz](https://cdn.adscientificindex.com/pictures/6a/1260599.jpg)
Soil ecology
Soil systems science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
108
0.584
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Paul Hallett](https://cdn.adscientificindex.com/pictures/87/1366618.jpg)
Sustainable Agriculture
Soil Physics
Rhizosphere
Plant-Soil Interactions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
153
126
0.824
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Paul N Williams](https://cdn.adscientificindex.com/pictures/8c/1368275.jpg)
Soil-Plant Interactions & Trace Element Biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
149
112
0.752
* Total i10 IndexRankings
Ranking Based On Selection: 8
![David A. Robinson](https://cdn.adscientificindex.com/pictures/91/4622533.jpg)
Soil Science
Ecohydrology
Ecosystem Services
Soil Physics
Soil
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
121
0.823
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Mark Tibbett](https://cdn.adscientificindex.com/pictures/04/1260603.jpg)
Soil Ecology
Biogeochemistry
Plant-Soil Interactions
Mycorrhiza
Bioremediation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
104
0.743
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Timothy S. George](https://cdn.adscientificindex.com/pictures/85/4442341.jpg)
Rhizosphere
Enzymes
Phosphate
Plant Nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
115
0.878
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Timothy Quine](/user/assets/images/profile/no-profile-photo.png)
Soil Science
Carbon Cycle
Geomorphology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
87
0.664
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Colin D Campbell](https://cdn.adscientificindex.com/pictures/f7/4442326.jpg)
soil
soil microbial ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
126
75
0.595
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Michael Fullen](https://cdn.adscientificindex.com/pictures/d4/1522831.jpg)
Soil erosion
soil conservation
desertification
desert reclamation
soil system dynamics.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
115
50
0.435
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Guy Kirk](/user/assets/images/profile/no-profile-photo.png)
Soil science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
65
0.591
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Stephen James Chapman](/user/assets/images/profile/no-profile-photo.png)
soil microbiology
microbial ecology
soil science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
71
0.651
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Stephan M. Haefele](/user/assets/images/profile/no-profile-photo.png)
Soil Science
agronomy
plant breeding
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
87
0.853
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Graeme Paton](https://cdn.adscientificindex.com/pictures/7a/1349100.jpg)
soil science
soil pollution
applied biotechnology
biosensors
pollution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
44
0.440
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Anne Verhoef](https://cdn.adscientificindex.com/pictures/cd/1203950.jpg)
soil physics
meteorology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
64
0.674
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Jennifer Dungait](https://cdn.adscientificindex.com/pictures/c3/1194711.jpg)
biogeochemistry
soil science
carbon cycling
agriculture
nutrient cycling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
83
0.902
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Saran Sohi](https://cdn.adscientificindex.com/pictures/b3/1339459.jpg)
Soil Science
Biochar
Carbon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
71
0.798
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Pippa Chapman](/user/assets/images/profile/no-profile-photo.png)
soil
water
carbon
agroforestry
sustainable agriculture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
55
0.618
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Tim J Daniell](https://cdn.adscientificindex.com/pictures/4e/1260600.jpg)
Soil Ecology
Plant Soil Interactions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
62
0.785
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Wilfred Otten](/user/assets/images/profile/no-profile-photo.png)
Soil science
soil physics
soil biology
sustainable management
epidemiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
60
0.759
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Brian J Reid](https://cdn.adscientificindex.com/pictures/ce/1342326.jpg)
soil science
soil carbon
pollution
remediation
biochar
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
47
0.595
* Total i10 IndexRankings
Ranking Based On Selection: 25
![Chris D Collins](https://cdn.adscientificindex.com/pictures/df/1260557.jpg)
Soil
Pollution
Pesticides
Bioaccessibility
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
56
0.747
Richard Bardgett
University of Manchester
Manchester, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
331
292
0.882
soil
soil ecology
ecosystem ecology
ecology
biodiversity
Keith Goulding
Rothamsted Research
Harpenden, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
218
129
0.592
Binoy Sarkar
Lancaster University
Lancaster, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
202
194
0.960
Soil Science
Environmental Chemistry
Clay Minerals
Enhanced weathering
Phil Haygarth
Lancaster University
Lancaster, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
126
0.681
soil
water
nutrients
phosphorus
catchments
Karl Ritz
University of Nottingham
Nottingham, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
108
0.584
Soil ecology
Soil systems science
Paul Hallett
University of Aberdeen
Aberdeen, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
153
126
0.824
Sustainable Agriculture
Soil Physics
Rhizosphere
Plant-Soil Interactions
Paul N Williams
Queen's University Belfast
Belfast, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
149
112
0.752
Soil-Plant Interactions & Trace Element Biogeochemistry
David A. Robinson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
121
0.823
Soil Science
Ecohydrology
Ecosystem Services
Soil Physics
Soil
Mark Tibbett
University of Reading
Reading, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
104
0.743
Soil Ecology
Biogeochemistry
Plant-Soil Interactions
Mycorrhiza
Bioremediation
Timothy S. George
James Hutton Institute
Dundee, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
115
0.878
Rhizosphere
Enzymes
Phosphate
Plant Nutrition
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Timothy Quine
University of Exeter
Exeter, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
87
0.664
Soil Science
Carbon Cycle
Geomorphology
Colin D Campbell
James Hutton Institute
Dundee, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
126
75
0.595
soil
soil microbial ecology
Michael Fullen
University of Wolverhampton
Wolverhampton, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
115
50
0.435
Soil erosion
soil conservation
desertification
desert reclamation
soil system dynamics.
Guy Kirk
Cranfield University
Cranfield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
65
0.591
Stephen James Chapman
James Hutton Institute
Dundee, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
71
0.651
soil microbiology
microbial ecology
soil science
Stephan M. Haefele
Rothamsted Research
Harpenden, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
87
0.853
Soil Science
agronomy
plant breeding
Graeme Paton
University of Aberdeen
Aberdeen, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
44
0.440
soil science
soil pollution
applied biotechnology
biosensors
pollution
Anne Verhoef
University of Reading
Reading, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
64
0.674
soil physics
meteorology
Jennifer Dungait
University of Exeter
Exeter, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
83
0.902
biogeochemistry
soil science
carbon cycling
agriculture
nutrient cycling
Saran Sohi
University of Edinburgh
Edinburgh, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
71
0.798
Soil Science
Biochar
Carbon
Pippa Chapman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
55
0.618
soil
water
carbon
agroforestry
sustainable agriculture
Tim J Daniell
University of Sheffield
Sheffield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
62
0.785
Soil Ecology
Plant Soil Interactions
Wilfred Otten
Cranfield University
Cranfield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
60
0.759
Soil science
soil physics
soil biology
sustainable management
epidemiology
Brian J Reid
University of East Anglia
Norwich, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
47
0.595
soil science
soil carbon
pollution
remediation
biochar
Chris D Collins
University of Reading
Reading, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
56
0.747
Soil
Pollution
Pesticides
Bioaccessibility