Total 2,392,995 scientists, country 221, and institutions 24,455 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
Soil Physics
Vadose Zone Hydrology
Numerical Modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
447
318
0.711
* Total i10 IndexRankings
Ranking Based On Selection: 2
Biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
390
276
0.708
* Total i10 IndexRankings
Ranking Based On Selection: 3
soil
soil science
soil organic matter
soil health
soil organic carbon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
383
325
0.849
* Total i10 IndexRankings
Ranking Based On Selection: 4
Soil and Water Quality
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
371
219
0.590
* Total i10 IndexRankings
Ranking Based On Selection: 5
soil physics
soil
water
vadose zone hydrology
soil science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
356
210
0.590
* Total i10 IndexRankings
Ranking Based On Selection: 6
Biogeochemistry
Soil Science
Wetlands and Aquatic Systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
341
172
0.504
* Total i10 IndexRankings
Ranking Based On Selection: 7
soil biogeochemistry
land use and greenhouse gas emissions
soil health
biofuel sustainability
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
298
206
0.691
* Total i10 IndexRankings
Ranking Based On Selection: 8
irrigation
evapotranspiration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
283
153
0.541
* Total i10 IndexRankings
Ranking Based On Selection: 9
Natural Resource Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
263
115
0.437
* Total i10 IndexRankings
Ranking Based On Selection: 10
soil science
biogeochemistry
greenhouse gases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
253
189
0.747
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* Total i10 IndexRankings
Ranking Based On Selection: 11
soil science
microbial ecology
agroecology
soil microbiology
remediation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
245
154
0.629
* Total i10 IndexRankings
Ranking Based On Selection: 12
evapotranspiration
irrigation
soil water
soil physics
sensors
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
161
0.663
* Total i10 IndexRankings
Ranking Based On Selection: 13
soil science
agronomy
agriculture
environmental science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
240
180
0.750
* Total i10 IndexRankings
Ranking Based On Selection: 14
soil microbial ecology
biogeochemistry
stable isotopes
ecosystem science
global change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
235
197
0.838
* Total i10 IndexRankings
Ranking Based On Selection: 15
soil
biogeochemistry
metals
arsenic
soil organic carbon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
233
185
0.794
* Total i10 IndexRankings
Ranking Based On Selection: 16
sensors
nutrient management
nitrogen
plant nutrition
developing world agriculture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
224
141
0.629
* Total i10 IndexRankings
Ranking Based On Selection: 17
forest soils
biogeochemistry
climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
223
100
0.448
* Total i10 IndexRankings
Ranking Based On Selection: 18
Soil chemistry
soil biochemistry
plant nutrition
environmental issues related to agriculture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
222
125
0.563
* Total i10 IndexRankings
Ranking Based On Selection: 19
Tropical soils
hunger
nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
213
81
0.380
* Total i10 IndexRankings
Ranking Based On Selection: 20
Soil science
microbial ecology
water quality
sustainable agriculture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
204
115
0.564
* Total i10 IndexRankings
Ranking Based On Selection: 21
nutrient management
soil
water
plant and animal waste testing and interpretations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
203
147
0.724
* Total i10 IndexRankings
Ranking Based On Selection: 22
soil science
ecology
arctic science
microbial ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
200
168
0.840
* Total i10 IndexRankings
Ranking Based On Selection: 23
Soil Science
Ecology
Agriculture
Policy
Rangelands
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
126
0.670
* Total i10 IndexRankings
Ranking Based On Selection: 24
Soil Microbial Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
146
0.789
* Total i10 IndexRankings
Ranking Based On Selection: 25
Soil Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
175
141
0.806
Jiri Simunek
University of California Riverside
Riverside, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
447
318
0.711
Soil Physics
Vadose Zone Hydrology
Numerical Modeling
Donald Sparks
University of Delaware
Newark, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
390
276
0.708
Johannes Lehmann
Cornell University
Ithaca, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
383
325
0.849
soil
soil science
soil organic matter
soil health
soil organic carbon
Yuncong Li
University of Florida
Gainesville, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
371
219
0.590
Soil and Water Quality
Robert Horton
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
356
210
0.590
soil physics
soil
water
vadose zone hydrology
soil science
K Ramesh Reddy
University of Florida
Gainesville, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
341
172
0.504
Biogeochemistry
Soil Science
Wetlands and Aquatic Systems
Keith Paustian
Colorado State University
Fort Collins, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
298
206
0.691
soil biogeochemistry
land use and greenhouse gas emissions
soil health
biofuel sustainability
Terry A Howell SR|Terry A. Howell, Sr.
Texas A&M University
College Station, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
283
153
0.541
irrigation
evapotranspiration
Eldor A Paul
Colorado State University
Fort Collins, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
263
115
0.437
Natural Resource Ecology
Horwath William
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
253
189
0.747
soil science
biogeochemistry
greenhouse gases
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Kate Scow
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
245
154
0.629
soil science
microbial ecology
agroecology
soil microbiology
remediation
Steven R Evett
US Department of Agriculture
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
161
0.663
evapotranspiration
irrigation
soil water
soil physics
sensors
Alan Franzluebbers
US Department of Agriculture
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
240
180
0.750
soil science
agronomy
agriculture
environmental science
Bruce Hungate
Northern Arizona University
Flagstaff, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
235
197
0.838
soil microbial ecology
biogeochemistry
stable isotopes
ecosystem science
global change
Fendorf
Stanford University
Stanford, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
233
185
0.794
soil
biogeochemistry
metals
arsenic
soil organic carbon
William Raun
Oklahoma State University Stillwater
Stillwater, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
224
141
0.629
sensors
nutrient management
nitrogen
plant nutrition
developing world agriculture
Ivan J Fernandez
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
223
100
0.448
forest soils
biogeochemistry
climate change
M Ali Tabatabai
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
222
125
0.563
Soil chemistry
soil biochemistry
plant nutrition
environmental issues related to agriculture
Pedro A Sanchez
University of Florida
Gainesville, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
213
81
0.380
Tropical soils
hunger
nutrition
Warren Dick
Ohio State University
Columbus, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
204
115
0.564
Soil science
microbial ecology
water quality
sustainable agriculture
Hailin Zhang
Oklahoma State University Stillwater
Stillwater, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
203
147
0.724
nutrient management
soil
water
plant and animal waste testing and interpretations
Joshua P Schimel
University of California Santa Barbara
Santa Barbara, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
200
168
0.840
soil science
ecology
arctic science
microbial ecology
Jeffrey Herrick
New Mexico State University
Las Cruces, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
126
0.670
Soil Science
Ecology
Agriculture
Policy
Rangelands
Mary K Firestone
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
146
0.789
Soil Microbial Ecology
Weindorf DC
Central Michigan University
Mount Pleasant, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
175
141
0.806