University, Subject, Country, Region, World
Institute of Geographic Sciences and Natural Resources Research 158 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 Feb 03, 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 (870.053) 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: 51
Urban Hydrology
sustainable water management
water footprint
hydrological modeling
water quality
Metrics
H-Index
i10 Index
Citation Counts
28
55
4,429
* Total H IndexRankings
Ranking Based On Selection: 52
Hydrology
water resource managment
Metrics
H-Index
i10 Index
Citation Counts
28
45
2,150
* Total H IndexRankings
Ranking Based On Selection: 53
Dryland ecohydrology
Cold regions hydrology
Surface-groundwater interactions
Metrics
H-Index
i10 Index
Citation Counts
28
55
2,895
* Total H IndexRankings
Ranking Based On Selection: 54
hydrology
water environment
Metrics
H-Index
i10 Index
Citation Counts
27
57
2,424
* Total H IndexRankings
Ranking Based On Selection: 55
phenology
global change ecology
Metrics
H-Index
i10 Index
Citation Counts
27
67
2,994
* Total H IndexRankings
Ranking Based On Selection: 56
Landscape ecology
Metrics
H-Index
i10 Index
Citation Counts
27
33
5,108
* Total H IndexRankings
Ranking Based On Selection: 57
Metrics
H-Index
i10 Index
Citation Counts
26
61
2,638
* Total H IndexRankings
Ranking Based On Selection: 58
Soil erosion
Soil and Water Conservation
Metrics
H-Index
i10 Index
Citation Counts
26
44
1,973
* Total H IndexRankings
Ranking Based On Selection: 59
Geochemistry
Cadmium isotope
Metrics
H-Index
i10 Index
Citation Counts
25
46
1,775
* Total H IndexRankings
Ranking Based On Selection: 60
Ecosystem ecology
Global change ecology
Biogeochemical cycle
Wetland ecology
Metrics
H-Index
i10 Index
Citation Counts
24
34
2,166
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* Total H IndexRankings
Ranking Based On Selection: 61
land use change
land management
Metrics
H-Index
i10 Index
Citation Counts
24
39
1,782
* Total H IndexRankings
Ranking Based On Selection: 62
Radar QPE
Urban Flash Flood
Metrics
H-Index
i10 Index
Citation Counts
24
33
2,236
* Total H IndexRankings
Ranking Based On Selection: 63
man-land relationship
rural geography
agricultural geography
land use and cover change
loess plateau
Metrics
H-Index
i10 Index
Citation Counts
24
33
1,928
* Total H IndexRankings
Ranking Based On Selection: 64
Root Ecology
Ecosystem Ecology
Biogeography
Metrics
H-Index
i10 Index
Citation Counts
23
38
2,131
* Total H IndexRankings
Ranking Based On Selection: 65
Hydrology
Remote Sensing
Water resources
Metrics
H-Index
i10 Index
Citation Counts
22
39
2,164
* Total H IndexRankings
Ranking Based On Selection: 66
Geography
Land Change Science
GIS/Remote Sensing
Climate Change
Policy Research
Metrics
H-Index
i10 Index
Citation Counts
22
28
1,677
* Total H IndexRankings
Ranking Based On Selection: 67
Precision agriculture
remote sensing application in agriculture and environment
crop nitrogen diagnosis
Metrics
H-Index
i10 Index
Citation Counts
22
38
1,828
* Total H IndexRankings
Ranking Based On Selection: 68
Land use change
Urbanization
Land-atmosphere interactions
Global climate change
Metrics
H-Index
i10 Index
Citation Counts
22
32
1,603
* Total H IndexRankings
Ranking Based On Selection: 69
Root Biology
Mycorrhizal Symbiosis
Nutrient Cycling
Global Change
Metrics
H-Index
i10 Index
Citation Counts
21
35
1,269
* Total H IndexRankings
Ranking Based On Selection: 70
Resources economics and policy
Energy security
Energy policy
Water policy
CGE
Metrics
H-Index
i10 Index
Citation Counts
21
42
1,246
* Total H IndexRankings
Ranking Based On Selection: 71
Plant water use
Grassland ecology
Stable isotope ecology
Global change ecology
Metrics
H-Index
i10 Index
Citation Counts
21
36
1,726
* Total H IndexRankings
Ranking Based On Selection: 72
Stochastic hydrology
Entropy based modelling
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,558
* Total H IndexRankings
Ranking Based On Selection: 73
Sediment transport
Fluvial geomorphology
Mountain stream hazards
Integrated river management
Metrics
H-Index
i10 Index
Citation Counts
21
46
1,795
* Total H IndexRankings
Ranking Based On Selection: 74
Physical Geography
Hydrology
Irrigation
GIS
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
20
23
2,226
* Total H IndexRankings
Ranking Based On Selection: 75
Environmental Change
Human Security
Remote Sensing
Biogeography
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
20
35
1,106
Siao Sun
Metrics
H-Index
i10-Index
Citation Counts
28
55
4,429
Urban Hydrology
sustainable water management
water footprint
hydrological modeling
water quality
Ping Wang（王平）
Metrics
H-Index
i10-Index
Citation Counts
28
55
2,895
Dryland ecohydrology
Cold regions hydrology
Surface-groundwater interactions
王焕炯 Huanjiong Wang
Metrics
H-Index
i10-Index
Citation Counts
27
67
2,994
Yu Liu
Metrics
H-Index
i10-Index
Citation Counts
27
33
5,108
Wan Xiaoming
Metrics
H-Index
i10-Index
Citation Counts
26
61
2,638
Ximeng Xu
Metrics
H-Index
i10-Index
Citation Counts
26
44
1,973
Yong Li
Metrics
H-Index
i10-Index
Citation Counts
24
34
2,166
Ecosystem ecology
Global change ecology
Biogeochemical cycle
Wetland ecology
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Xinli Ke
Metrics
H-Index
i10-Index
Citation Counts
24
39
1,782
Youcun Qi
Metrics
H-Index
i10-Index
Citation Counts
24
33
2,236
Zhi Cao
Metrics
H-Index
i10-Index
Citation Counts
24
33
1,928
man-land relationship
rural geography
agricultural geography
land use and cover change
loess plateau
Zeqing Ma
Metrics
H-Index
i10-Index
Citation Counts
23
38
2,131
Root Ecology
Ecosystem Ecology
Biogeography
Wenbin Zhu
Metrics
H-Index
i10-Index
Citation Counts
22
39
2,164
Hydrology
Remote Sensing
Water resources
Basanta Paudel
Metrics
H-Index
i10-Index
Citation Counts
22
28
1,677
Geography
Land Change Science
GIS/Remote Sensing
Climate Change
Policy Research
Pengfei Chen
Metrics
H-Index
i10-Index
Citation Counts
22
38
1,828
Precision agriculture
remote sensing application in agriculture and environment
crop nitrogen diagnosis
Guosong Zhao
Metrics
H-Index
i10-Index
Citation Counts
22
32
1,603
Land use change
Urbanization
Land-atmosphere interactions
Global climate change
Liang Kou
Metrics
H-Index
i10-Index
Citation Counts
21
35
1,269
Root Biology
Mycorrhizal Symbiosis
Nutrient Cycling
Global Change
Shuai Zhong
Metrics
H-Index
i10-Index
Citation Counts
21
42
1,246
Resources economics and policy
Energy security
Energy policy
Water policy
CGE
Hao Yang
Metrics
H-Index
i10-Index
Citation Counts
21
36
1,726
Plant water use
Grassland ecology
Stable isotope ecology
Global change ecology
Huijuan Cui
Metrics
H-Index
i10-Index
Citation Counts
21
34
1,558
Stochastic hydrology
Entropy based modelling
Guo-An Yu
Metrics
H-Index
i10-Index
Citation Counts
21
46
1,795
Sediment transport
Fluvial geomorphology
Mountain stream hazards
Integrated river management
Gebremedhin Gebremeskel Haile
Metrics
H-Index
i10-Index
Citation Counts
20
23
2,226
Physical Geography
Hydrology
Irrigation
GIS
Climate Change
Fangyu Ding
Metrics
H-Index
i10-Index
Citation Counts
20
35
1,106
Environmental Change
Human Security
Remote Sensing
Biogeography
Epidemiology