World Scientist and University Rankings 2025
Japan Agriculture & Forestry 45 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 28, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.688) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
soil science
soil microbiology
environment
greenhouse gas
Metrics
H-Index
i10 Index
Citation Counts
56
194
10,224
* Total H IndexRankings
Ranking Based On Selection: 2
Soil erosion
Reservoir sedimentation
Land use change
Hydrological processes
Metrics
H-Index
i10 Index
Citation Counts
55
115
10,478
* Total H IndexRankings
Ranking Based On Selection: 3
soil science
Metrics
H-Index
i10 Index
Citation Counts
51
180
10,048
* Total H IndexRankings
Ranking Based On Selection: 4
Soil Mechanics
Metrics
H-Index
i10 Index
Citation Counts
45
163
6,906
* Total H IndexRankings
Ranking Based On Selection: 5
Soil physics
Frozen soil
Hydrology
Metrics
H-Index
i10 Index
Citation Counts
45
174
8,569
* Total H IndexRankings
Ranking Based On Selection: 6
soil
Metrics
H-Index
i10 Index
Citation Counts
44
107
5,779
* Total H IndexRankings
Ranking Based On Selection: 7
Plant Nutrition and Soil Science
Metrics
H-Index
i10 Index
Citation Counts
39
101
4,813
* Total H IndexRankings
Ranking Based On Selection: 8
Soil organic matter
Soil science
Biogeochemistry
Ecosystem Ecology
Metrics
H-Index
i10 Index
Citation Counts
29
46
4,873
* Total H IndexRankings
Ranking Based On Selection: 9
Biogeochemistry
Nitrogen
GHG
Climate change impacts
rCs
Metrics
H-Index
i10 Index
Citation Counts
27
43
3,085
* Total H IndexRankings
Ranking Based On Selection: 10
soil microbiology
molecular microbiology
Metrics
H-Index
i10 Index
Citation Counts
26
39
1,927
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* Total H IndexRankings
Ranking Based On Selection: 11
Soil Science
Soil Erosion and Conservation
Metrics
H-Index
i10 Index
Citation Counts
25
31
1,882
* Total H IndexRankings
Ranking Based On Selection: 12
Soil Science
Metrics
H-Index
i10 Index
Citation Counts
25
43
2,691
* Total H IndexRankings
Ranking Based On Selection: 13
Soil Physcis
Geostatistics
Hydrogeophysics
Metrics
H-Index
i10 Index
Citation Counts
22
40
3,017
* Total H IndexRankings
Ranking Based On Selection: 14
Soil Mechanics
Geotechnical Engineering
Geo-environment
Soft clay
Consolidation
Metrics
H-Index
i10 Index
Citation Counts
22
57
2,469
* Total H IndexRankings
Ranking Based On Selection: 15
Greenhouse gas
crop management
Environment
climate change
Plant nutrition
Metrics
H-Index
i10 Index
Citation Counts
20
33
1,148
* Total H IndexRankings
Ranking Based On Selection: 16
Soil nutrient dynamcis
Biogeochemistry
Tropical ecosystem
Metrics
H-Index
i10 Index
Citation Counts
19
32
1,094
* Total H IndexRankings
Ranking Based On Selection: 17
Soil C sequestration
Nitrous oxide
Methane
Agriculture
Environment
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,416
* Total H IndexRankings
Ranking Based On Selection: 18
Soil Mechanics
Geotechnical Engineering
Civil Engineering
Metrics
H-Index
i10 Index
Citation Counts
18
29
1,468
* Total H IndexRankings
Ranking Based On Selection: 19
Soil Science
Biochar
Tropical Forest Conservation
Weste Management
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,801
* Total H IndexRankings
Ranking Based On Selection: 20
Soil Science
Environmental Science
Agricultural Land Conservation
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,260
* Total H IndexRankings
Ranking Based On Selection: 21
Soil science
Tropical agriculture
Metrics
H-Index
i10 Index
Citation Counts
16
22
660
* Total H IndexRankings
Ranking Based On Selection: 22
Soil science
Metrics
H-Index
i10 Index
Citation Counts
16
20
783
* Total H IndexRankings
Ranking Based On Selection: 23
soil environmental science
Metrics
H-Index
i10 Index
Citation Counts
15
20
1,057
* Total H IndexRankings
Ranking Based On Selection: 24
Soil Physics
Soil Hydrology
Soil Science
Environmental Science
Metrics
H-Index
i10 Index
Citation Counts
15
21
1,396
* Total H IndexRankings
Ranking Based On Selection: 25
Soil Science
Organic Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
14
18
570
Kazuyuki Inubushi
Chiba University
Chiba, Japan
Metrics
H-Index
i10-Index
Citation Counts
56
194
10,224
soil science
soil microbiology
environment
greenhouse gas
Nigussie Haregeweyn
Tottori University
Tottori, Japan
Metrics
H-Index
i10-Index
Citation Counts
55
115
10,478
Soil erosion
Reservoir sedimentation
Land use change
Hydrological processes
Ryusuke Hatano
Hokkaido University
Sapporo, Japan
Metrics
H-Index
i10-Index
Citation Counts
51
180
10,048
Feng Zhang
Nagoya Institute of Technology
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
45
163
6,906
Soil physics
Frozen soil
Hydrology
Keishi Senoo
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
44
107
5,779
Keitaro Tawaraya
Yamagata University
Yamagata, Japan
Metrics
H-Index
i10-Index
Citation Counts
39
101
4,813
Plant Nutrition and Soil Science
Rota Wagai
Metrics
H-Index
i10-Index
Citation Counts
29
46
4,873
Soil organic matter
Soil science
Biogeochemistry
Ecosystem Ecology
Kazuya Nishina|仁科 一哉
Metrics
H-Index
i10-Index
Citation Counts
27
43
3,085
Biogeochemistry
Nitrogen
GHG
Climate change impacts
rCs
Akihiro Saito
Metrics
H-Index
i10-Index
Citation Counts
26
39
1,927
soil microbiology
molecular microbiology
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Kindiye Ebabu
Tottori University
Tottori, Japan
Metrics
H-Index
i10-Index
Citation Counts
25
31
1,882
Soil Science
Soil Erosion and Conservation
Teruo Higashi
University of Tsukuba
Tsukuba, Japan
Metrics
H-Index
i10-Index
Citation Counts
25
43
2,691
Hirotaka Saito
Metrics
H-Index
i10-Index
Citation Counts
22
40
3,017
Soil Physcis
Geostatistics
Hydrogeophysics
Yoichi Watabe
Hokkaido University
Sapporo, Japan
Metrics
H-Index
i10-Index
Citation Counts
22
57
2,469
Soil Mechanics
Geotechnical Engineering
Geo-environment
Soft clay
Consolidation
Aung Zaw Oo
Metrics
H-Index
i10-Index
Citation Counts
20
33
1,148
Greenhouse gas
crop management
Environment
climate change
Plant nutrition
Soh Sugihara
Metrics
H-Index
i10-Index
Citation Counts
19
32
1,094
Soil nutrient dynamcis
Biogeochemistry
Tropical ecosystem
Soil C sequestration
Nitrous oxide
Methane
Agriculture
Environment
Kiyonobu Kasama
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
18
29
1,468
Soil Mechanics
Geotechnical Engineering
Civil Engineering
Soil Science
Biochar
Tropical Forest Conservation
Weste Management
Yasushi Mori
Okayama University
Okayama, Japan
Metrics
H-Index
i10-Index
Citation Counts
17
21
1,260
Soil Science
Environmental Science
Agricultural Land Conservation
Tomohiro Nishigaki
Metrics
H-Index
i10-Index
Citation Counts
16
22
660
Soil science
Tropical agriculture
Ryosuke Fujinuma
Metrics
H-Index
i10-Index
Citation Counts
16
20
783
Maki Asano
University of Tsukuba
Tsukuba, Japan
Metrics
H-Index
i10-Index
Citation Counts
15
20
1,057
soil environmental science
Soil Physics
Soil Hydrology
Soil Science
Environmental Science
Soil Science
Organic Geochemistry