Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 72 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
agroforestry
ecology
biogeography
biodiversity
climate chang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94,745
59,489
0.628
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
ethnoecology
fungi ecology
biodiversity conservation
landscape restoratio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,444
26,507
0.583
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
roots
agroforestry
ecosystem services
landscape
wate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,566
17,381
0.358
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
agriculture
agroecology
agroforestry
food security
ecosystem service
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,390
7,188
0.467
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Agroforestry
Restoration
Tree Conservation. Integrated Tree Seed Systems
Food Tree
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,357
6,222
0.548
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Soil
Agroforestry
Carbon Cycling
Land Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,567
5,681
0.663
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Landscape ecology
Conservation biology
Biodiversity
Tropical forest ecology
Restoratio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,377
5,514
0.531
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Agroforestr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,724
4,904
0.635
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Agroforestry
Biofuel
Rice
agronom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,512
4,787
0.273
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Ecology
Climate Change Adaptation
Agriculture
Food Securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,458
3,640
0.667
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
SL
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,768
3,575
0.460
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Extension
marketing
agroforestry
natural resources management
participatory researc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,586
3,367
0.318
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Capacity Development
Transdisciplinarity in research
Science Policy and Practice
Institutional reforms
Agroforestr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,172
3,086
0.597
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Ecosystem-based adaptation
Sustainable forestry
Sustainable landscapes management
Climate action planning
Ecosystem hea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,091
2,851
0.697
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Agroforestry
tree domestication
rural developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,117
2,705
0.529
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
landcare
watershed management
collective action
payments for envirmental services
agroforestry policy incentive
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,013
2,688
0.536
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Ecosystem services
green investment
sustainable financing
landscape governance
Asia Pacifi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,720
2,609
0.553
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Agroforestry and Tree Domesticatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,416
2,303
0.311
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Agroforestry
Rural Livelihoods
Landscape Ecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,828
2,136
0.442
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Bioenergy
Natural Resource Management (NRM)
Gende
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,914
1,802
0.618
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
tree germplasm
agroforestry systems
tree product marketing and extension
land health
climate chang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,913
1,546
0.261
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
natural resource governance
forestry
equity
vulnerability
empowermen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,711
1,527
0.892
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Biodiversity
Agroforestry
Livelihood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,699
1,486
0.551
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Climate-Smart Agriculture
Soil Health
Sustainable Food System
Spatial Data
Statistic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,261
1,433
0.634
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,348
1,323
0.563
* Last 6 Years Citation Counts Rankings
Rankings
2,147
4
1
Ranking Based On Selection: 1
Kindt, Roeland
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94,745
59,489
0.628
agroforestry
ecology
biogeography
biodiversity
climate chang
* Last 6 Years Citation Counts Rankings
Rankings
7,912
6
2
Ranking Based On Selection: 2
Jianchu Xu
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,444
26,507
0.583
ethnoecology
fungi ecology
biodiversity conservation
landscape restoratio
* Last 6 Years Citation Counts Rankings
Rankings
15,132
8
3
Ranking Based On Selection: 3
Meine Van Noordwijk|Noordwijk, Meine van, van Noordwijk, Meine
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,566
17,381
0.358
roots
agroforestry
ecosystem services
landscape
wate
* Last 6 Years Citation Counts Rankings
Rankings
55,743
15
4
Ranking Based On Selection: 4
Fergus Sinclair
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,390
7,188
0.467
agriculture
agroecology
agroforestry
food security
ecosystem service
* Last 6 Years Citation Counts Rankings
Rankings
67,970
19
5
Ranking Based On Selection: 5
Ramni H Jamnadass
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,357
6,222
0.548
Agroforestry
Restoration
Tree Conservation. Integrated Tree Seed Systems
Food Tree
* Last 6 Years Citation Counts Rankings
Rankings
76,851
21
6
Ranking Based On Selection: 6
Leigh Winowiecki
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,567
5,681
0.663
Soil
Agroforestry
Carbon Cycling
Land Healt
* Last 6 Years Citation Counts Rankings
Rankings
79,948
24
7
Ranking Based On Selection: 7
Rhett D Harrison
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,377
5,514
0.531
Landscape ecology
Conservation biology
Biodiversity
Tropical forest ecology
Restoratio
* Last 6 Years Citation Counts Rankings
Rankings
92,933
31
8
Ranking Based On Selection: 8
Suyanto
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,724
4,904
0.635
* Last 6 Years Citation Counts Rankings
Rankings
95,839
33
9
Ranking Based On Selection: 9
Virendra Pal Singh
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,512
4,787
0.273
Agroforestry
Biofuel
Rice
agronom
* Last 6 Years Citation Counts Rankings
Rankings
133,704
48
10
Ranking Based On Selection: 10
Christine Lamanna
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,458
3,640
0.667
Ecology
Climate Change Adaptation
Agriculture
Food Securit
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Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Last 6 Years Citation Counts Rankings
Rankings
136,525
49
11
Ranking Based On Selection: 11
Ingrid Oborn
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,768
3,575
0.460
* Last 6 Years Citation Counts Rankings
Rankings
146,335
56
12
Ranking Based On Selection: 12
Steven Franzel
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,586
3,367
0.318
Extension
marketing
agroforestry
natural resources management
participatory researc
* Last 6 Years Citation Counts Rankings
Rankings
161,882
64
13
Ranking Based On Selection: 13
Muhammad Mehmood Ul Hassan
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,172
3,086
0.597
Capacity Development
Transdisciplinarity in research
Science Policy and Practice
Institutional reforms
Agroforestr
* Last 6 Years Citation Counts Rankings
Rankings
176,761
74
14
Ranking Based On Selection: 14
Lalisa Duguma
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,091
2,851
0.697
Ecosystem-based adaptation
Sustainable forestry
Sustainable landscapes management
Climate action planning
Ecosystem hea
* Last 6 Years Citation Counts Rankings
Rankings
187,229
80
15
Ranking Based On Selection: 15
James M Roshetko
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,117
2,705
0.529
Agroforestry
tree domestication
rural developmen
* Last 6 Years Citation Counts Rankings
Rankings
188,452
81
16
Ranking Based On Selection: 16
Delia C Catacutan
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,013
2,688
0.536
landcare
watershed management
collective action
payments for envirmental services
agroforestry policy incentive
* Last 6 Years Citation Counts Rankings
Rankings
194,641
85
17
Ranking Based On Selection: 17
Beria Leimona
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,720
2,609
0.553
Ecosystem services
green investment
sustainable financing
landscape governance
Asia Pacifi
* Last 6 Years Citation Counts Rankings
Rankings
221,981
107
18
Ranking Based On Selection: 18
Zac Tchoundjeu
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,416
2,303
0.311
Agroforestry and Tree Domesticatio
* Last 6 Years Citation Counts Rankings
Rankings
239,946
115
19
Ranking Based On Selection: 19
Sonya Dewi
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,828
2,136
0.442
Agroforestry
Rural Livelihoods
Landscape Ecolog
* Last 6 Years Citation Counts Rankings
Rankings
283,698
145
20
Ranking Based On Selection: 20
Mary Njenga
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,914
1,802
0.618
Bioenergy
Natural Resource Management (NRM)
Gende
* Last 6 Years Citation Counts Rankings
Rankings
326,781
187
21
Ranking Based On Selection: 21
Tony Simons
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,913
1,546
0.261
tree germplasm
agroforestry systems
tree product marketing and extension
land health
climate chang
* Last 6 Years Citation Counts Rankings
Rankings
330,576
191
22
Ranking Based On Selection: 22
Susan Chomba
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,711
1,527
0.892
natural resource governance
forestry
equity
vulnerability
empowermen
* Last 6 Years Citation Counts Rankings
Rankings
338,627
201
23
Ranking Based On Selection: 23
Anja Gassner
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,699
1,486
0.551
Biodiversity
Agroforestry
Livelihood
* Last 6 Years Citation Counts Rankings
Rankings
349,480
215
24
Ranking Based On Selection: 24
Kiros Hadgu
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,261
1,433
0.634
Climate-Smart Agriculture
Soil Health
Sustainable Food System
Spatial Data
Statistic
* Last 6 Years Citation Counts Rankings
Rankings
374,145
225
25
Ranking Based On Selection: 25
Christophe Kouame
World Agroforestry (ICRAF)
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,348
1,323
0.563