University, Subject, Country, Region, World
Finnish Environment Institute SYKE 163 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 30, 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 (873.690) 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
Climate
Environment
Metrics
H-Index
i10 Index
Citation Counts
70
141
49,584
* Total H IndexRankings
Ranking Based On Selection: 2
Conservation biology
Climate change
Biodiversity
Species distribution modelling
Metrics
H-Index
i10 Index
Citation Counts
59
115
17,134
* Total H IndexRankings
Ranking Based On Selection: 3
Conservation biology
butterfly ecology
agroecology
Metrics
H-Index
i10 Index
Citation Counts
57
110
16,628
* Total H IndexRankings
Ranking Based On Selection: 4
Biogeochemical cycles
climate change
land use
atmospheric deposition
Metrics
H-Index
i10 Index
Citation Counts
53
102
23,122
* Total H IndexRankings
Ranking Based On Selection: 5
biogeochemistry
climate change
air pollution
lakes
catchments
Metrics
H-Index
i10 Index
Citation Counts
46
107
10,010
* Total H IndexRankings
Ranking Based On Selection: 6
Biodiversity
Baltic Sea
Pelagic and benthic ecology
Marine spatial planning
Conservation ecology
Metrics
H-Index
i10 Index
Citation Counts
45
74
5,937
* Total H IndexRankings
Ranking Based On Selection: 7
Marine ecology
Baltic Sea
Eutrophication
Microbes
Metrics
H-Index
i10 Index
Citation Counts
44
105
7,024
* Total H IndexRankings
Ranking Based On Selection: 8
Ecosystem based management and assessment of aquatic ecosystems
Marine and Water Policies
aquatic
Metrics
H-Index
i10 Index
Citation Counts
43
70
7,497
* Total H IndexRankings
Ranking Based On Selection: 9
Microplastics
Engineered nanoparticles
Aerosol particles
Analytical chemistry
Ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
42
48
6,462
* Total H IndexRankings
Ranking Based On Selection: 10
biodiversity conservation
climate change
insect ecology
habitat loss
Lepidoptera
Metrics
H-Index
i10 Index
Citation Counts
40
65
7,645
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* Total H IndexRankings
Ranking Based On Selection: 11
Biodiversity conservation
Bird ecology
Boreal
Climate change
Metrics
H-Index
i10 Index
Citation Counts
40
76
7,372
* Total H IndexRankings
Ranking Based On Selection: 12
Policy analysis and evaluation
natural resource management
programme assessment
Metrics
H-Index
i10 Index
Citation Counts
39
97
5,611
* Total H IndexRankings
Ranking Based On Selection: 13
Phytoplankton Ecology
Metrics
H-Index
i10 Index
Citation Counts
39
82
4,570
* Total H IndexRankings
Ranking Based On Selection: 14
planktonic nutrient cycles
food webs
diversity
Metrics
H-Index
i10 Index
Citation Counts
39
66
4,914
* Total H IndexRankings
Ranking Based On Selection: 15
Metrics
H-Index
i10 Index
Citation Counts
38
78
4,576
* Total H IndexRankings
Ranking Based On Selection: 16
aquatic macrophytes
monitoring
Metrics
H-Index
i10 Index
Citation Counts
37
92
5,103
* Total H IndexRankings
Ranking Based On Selection: 17
Agri-environmental issues
Life cycle assessment
Metrics
H-Index
i10 Index
Citation Counts
36
98
4,898
* Total H IndexRankings
Ranking Based On Selection: 18
Climate change
environmental impact assessment
resource efficiency
Metrics
H-Index
i10 Index
Citation Counts
36
80
9,894
* Total H IndexRankings
Ranking Based On Selection: 19
contaminants
emerging pollutants
aquatic environment
regional limnology
Metrics
H-Index
i10 Index
Citation Counts
36
71
4,987
* Total H IndexRankings
Ranking Based On Selection: 20
marine biology
ecotoxicology
ecophysiology
biological effects
hazardous substances
Metrics
H-Index
i10 Index
Citation Counts
35
67
4,212
* Total H IndexRankings
Ranking Based On Selection: 21
Catchment modelling
biogeochemical cycles
nitrogen
carbon
hydrology
Metrics
H-Index
i10 Index
Citation Counts
35
67
5,315
* Total H IndexRankings
Ranking Based On Selection: 22
biodiversity conservation
ecological restoration
forest ecology
insect ecology
ants
Metrics
H-Index
i10 Index
Citation Counts
35
62
6,003
* Total H IndexRankings
Ranking Based On Selection: 23
deliberative environmental politics
environmental conflict resolution
participatory integrated appraisals
Metrics
H-Index
i10 Index
Citation Counts
34
51
5,666
* Total H IndexRankings
Ranking Based On Selection: 24
lake phytoplankton
food webs of lakes
Metrics
H-Index
i10 Index
Citation Counts
34
59
3,869
* Total H IndexRankings
Ranking Based On Selection: 25
Biodiversity monitoring
Ecosystem functioning
Ecosystem services
Earth Observation
Metrics
H-Index
i10 Index
Citation Counts
33
56
6,317
Timothy R. Carter
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
70
141
49,584
Risto K. Heikkinen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
59
115
17,134
Conservation biology
Climate change
Biodiversity
Species distribution modelling
Mikko Kuussaari
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
57
110
16,628
Conservation biology
butterfly ecology
agroecology
Pirkko Kortelainen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
53
102
23,122
Biogeochemical cycles
climate change
land use
atmospheric deposition
Martin Forsius
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
46
107
10,010
biogeochemistry
climate change
air pollution
lakes
catchments
Markku Viitasalo
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
45
74
5,937
Biodiversity
Baltic Sea
Pelagic and benthic ecology
Marine spatial planning
Conservation ecology
Harri Kuosa
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
44
105
7,024
Marine ecology
Baltic Sea
Eutrophication
Microbes
Anna-Stiina Heiskanen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
43
70
7,497
Ecosystem based management and assessment of aquatic ecosystems
Marine and Water Policies
aquatic
Markus Sillanpää
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
42
48
6,462
Microplastics
Engineered nanoparticles
Aerosol particles
Analytical chemistry
Ecotoxicology
Juha Pöyry
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
40
65
7,645
biodiversity conservation
climate change
insect ecology
habitat loss
Lepidoptera
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Raimo Virkkala
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
40
76
7,372
Biodiversity conservation
Bird ecology
Boreal
Climate change
Mikael Hildén
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
39
97
5,611
Policy analysis and evaluation
natural resource management
programme assessment
Anke Kremp
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
39
82
4,570
Timo Tamminen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
39
66
4,914
Matti Verta
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
38
78
4,576
Seppo Hellsten
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
37
92
5,103
Juha Grönroos
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
36
98
4,898
Agri-environmental issues
Life cycle assessment
Jyri Seppälä
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
36
80
9,894
Climate change
environmental impact assessment
resource efficiency
Jaakko Mannio
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
36
71
4,987
contaminants
emerging pollutants
aquatic environment
regional limnology
Kari K. Lehtonen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
35
67
4,212
marine biology
ecotoxicology
ecophysiology
biological effects
hazardous substances
Ahti Lepistö
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
35
67
5,315
Catchment modelling
biogeochemical cycles
nitrogen
carbon
hydrology
Pekka Punttila
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
35
62
6,003
biodiversity conservation
ecological restoration
forest ecology
insect ecology
ants
Heli Saarikoski
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
34
51
5,666
deliberative environmental politics
environmental conflict resolution
participatory integrated appraisals
Marko Järvinen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
34
59
3,869
Petteri Vihervaara
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Metrics
H-Index
i10-Index
Citation Counts
33
56
6,317
Biodiversity monitoring
Ecosystem functioning
Ecosystem services
Earth Observation