Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
soil biogeochemistry
land use and greenhouse gas emissions
soil health
biofuel sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,708
26,354
0.395
* Total Citation Counts Rankings
Ranking Based On Selection :2
Natural Resource Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,540
12,304
0.239
* Total Citation Counts Rankings
Ranking Based On Selection :3
Plant Ecology
Ecosystem Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,920
17,623
0.384
* Total Citation Counts Rankings
Ranking Based On Selection :4
Soil microbiology
soil chemistry
waste management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,484
12,039
0.305
* Total Citation Counts Rankings
Ranking Based On Selection :5
agriculture
climate
food security
sustainability
food-energy-water nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,248
19,373
0.686
* Total Citation Counts Rankings
Ranking Based On Selection :6
litter decomposition
soil organic matter
stable isotopes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,930
14,350
0.626
* Total Citation Counts Rankings
Ranking Based On Selection :7
Plant disease and resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,694
9,932
0.438
* Total Citation Counts Rankings
Ranking Based On Selection :8
Plant Physiology
Biochemistry
Mode of Action
Biosynthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,259
8,157
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :9
Conservation Biology
Ecology
Wildlife Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,838
9,231
0.490
* Total Citation Counts Rankings
Ranking Based On Selection :10
Forest Ecology
Remote Sensing
Lidar RS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,420
6,272
0.360
* Total Citation Counts Rankings
Ranking Based On Selection :11
Conservation Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,688
8,461
0.618
* Total Citation Counts Rankings
Ranking Based On Selection :12
Soil science
agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,628
3,218
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :13
soil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,301
7,539
0.667
* Total Citation Counts Rankings
Ranking Based On Selection :14
Conservation Biology
Restoration Ecology
Ecosystem Services
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,370
4,208
0.503
* Total Citation Counts Rankings
Ranking Based On Selection :15
weed-crop competition
agricultural ethics
kinetics of herbicide degradation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,796
1,730
0.222
* Total Citation Counts Rankings
Ranking Based On Selection :16
wheat
breeding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,763
2,452
0.316
* Total Citation Counts Rankings
Ranking Based On Selection :17
Soil Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,362
2,327
0.316
* Total Citation Counts Rankings
Ranking Based On Selection :18
plant community ecology
restoration ecology
invasion ecology
riparian ecology
wetland ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,254
3,047
0.420
* Total Citation Counts Rankings
Ranking Based On Selection :19
agroecology
cropping systems
biogeochemistry
resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,741
5,626
0.835
* Total Citation Counts Rankings
Ranking Based On Selection :20
Nutrition and Beef Cattle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,593
1,206
0.183
* Total Citation Counts Rankings
Ranking Based On Selection :21
Plant Ecology
Invasion Biology
Restoration Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,377
3,335
0.523
* Total Citation Counts Rankings
Ranking Based On Selection :22
Animal Behavior
Parasitology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,026
1,472
0.244
* Total Citation Counts Rankings
Ranking Based On Selection :23
Precision Agriculture
Soil Fertility
Plant Nutrition
Remote Sensing
Spatial Variability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,875
2,670
0.454
* Total Citation Counts Rankings
Ranking Based On Selection :24
Plant Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,637
4,056
0.720
* Total Citation Counts Rankings
Ranking Based On Selection :25
Soil biogeochemistry
soil organic matter dynamics
carbon and nitrogen cycling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,533
4,579
0.828
Keith Paustian
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,708
26,354
0.395
soil biogeochemistry
land use and greenhouse gas emissions
soil health
biofuel sustainability
Eldor A Paul
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,540
12,304
0.239
Natural Resource Ecology
Knapp Alan
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,920
17,623
0.384
Plant Ecology
Ecosystem Ecology
Le Sommers
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,484
12,039
0.305
Soil microbiology
soil chemistry
waste management
Nathan D Mueller
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,248
19,373
0.686
agriculture
climate
food security
sustainability
food-energy-water nexus
M Francesca Cotrufo
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,930
14,350
0.626
litter decomposition
soil organic matter
stable isotopes
Jan E Leach
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,694
9,932
0.438
Franck E Dayan
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,259
8,157
0.424
Plant Physiology
Biochemistry
Mode of Action
Biosynthesis
Kevin Crooks
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,838
9,231
0.490
Conservation Biology
Ecology
Wildlife Biology
Michael Lefsky
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,420
6,272
0.360
Forest Ecology
Remote Sensing
Lidar RS
George Wittemyer
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,688
8,461
0.618
GA Peterson
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,628
3,218
0.236
Soil science
agronomy
Jim Ippolito
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,301
7,539
0.667
Liba Pejchar
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,370
4,208
0.503
Conservation Biology
Restoration Ecology
Ecosystem Services
Robert Zimdahl
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,796
1,730
0.222
weed-crop competition
agricultural ethics
kinetics of herbicide degradation
Scott Haley
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,763
2,452
0.316
Eugene F Kelly
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,362
2,327
0.316
Laura G Perry
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,254
3,047
0.420
plant community ecology
restoration ecology
invasion ecology
riparian ecology
wetland ecology
Meagan Schipanski
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,741
5,626
0.835
agroecology
cropping systems
biogeochemistry
resilience
Kevin Pond
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,593
1,206
0.183
Cynthia S Brown
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,377
3,335
0.523
Plant Ecology
Invasion Biology
Restoration Ecology
Janice Moore
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,026
1,472
0.244
Rajiv Khosla
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,875
2,670
0.454
Precision Agriculture
Soil Fertility
Plant Nutrition
Remote Sensing
Spatial Variability
Jacqueline M Chaparro
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,637
4,056
0.720
Jocelyn Lavallee
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,533
4,579
0.828
Soil biogeochemistry
soil organic matter dynamics
carbon and nitrogen cycling