Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (1,014,167 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects. 

* Rankings
Ranking Based On Selection :1
Subbarao Guntur
Nitrification inhibition
Biological nitrification inhibition
nitrous oxide emissions
global warming
climate change
Metrics
H-Index
i10 Index
Citation
48
82
9,288
* Rankings
Ranking Based On Selection :4
Takeshi Tokida
Free-Air CO2 Enrichment (FACE)
Stable Isotope Biogeochemistry
Plant-soil-microbe interactions
Rice
Methane
Metrics
H-Index
i10 Index
Citation
37
65
3,779
* Rankings
Ranking Based On Selection :8
Yasuhiro Usui
Rice
Climate change
Free-Air CO2 Enrichment (FACE)
Paddy Field
Division of Farming System Research
Metrics
H-Index
i10 Index
Citation
23
33
3,164
* Rankings
Ranking Based On Selection :13
Yuki G Baba
Arachnology
Behavioral Ecology
Biological control
Ecology
Landscape ecology
Metrics
H-Index
i10 Index
Citation
14
17
888
Rankings
Ranking Based On Selection: 1
Subbarao Guntur
Metrics
H-Index
i10 Index
Citation Counts
48
82
9,288
Nitrification inhibition
Biological nitrification inhibition
nitrous oxide emissions
global warming
climate change
Rankings
Ranking Based On Selection: 3
Mingyuan Du
Metrics
H-Index
i10 Index
Citation Counts
38
118
6,052
Alpine ecology
Dust emission
Flux
Tibetan Plateau
Wind erosion
Rankings
Ranking Based On Selection: 4
Takeshi Tokida
Metrics
H-Index
i10 Index
Citation Counts
37
65
3,779
Free-Air CO2 Enrichment (FACE)
Stable Isotope Biogeochemistry
Plant-soil-microbe interactions
Rice
Methane
Rankings
Ranking Based On Selection: 5
Kentaro Hayashi|林 健太郎
Metrics
H-Index
i10 Index
Citation Counts
30
65
2,974
Rankings
Ranking Based On Selection: 6
Toshihiro Sakamoto
Metrics
H-Index
i10 Index
Citation Counts
27
34
4,602
Rankings
Ranking Based On Selection: 7
Keisuke Ono
Metrics
H-Index
i10 Index
Citation Counts
24
44
2,838
Rankings
Ranking Based On Selection: 8
Yasuhiro Usui
Metrics
H-Index
i10 Index
Citation Counts
23
33
3,164
Rice
Climate change
Free-Air CO2 Enrichment (FACE)
Paddy Field
Division of Farming System Research
Rankings
Ranking Based On Selection: 9
Takashi Nagai
Metrics
H-Index
i10 Index
Citation Counts
22
35
1,422
Rankings
Ranking Based On Selection: 12
Nobuhiro Minaka / 三中信宏
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,123
Systematics
Phylogenetics
Statistics
Morphometrics
Philosophy and History of Biology
Rankings
Ranking Based On Selection: 13
Yuki G Baba
Metrics
H-Index
i10 Index
Citation Counts
14
17
888
Arachnology
Behavioral Ecology
Biological control
Ecology
Landscape ecology
Rankings
Ranking Based On Selection: 14
Tsubasa Ohbayashi|大林 翼
Metrics
H-Index
i10 Index
Citation Counts
12
12
750
Rankings
Ranking Based On Selection: 16
Yusuke Masuya
Metrics
H-Index
i10 Index
Citation Counts
4
2
124