World Scientist and University Rankings 2025
Sri Lanka Agriculture & Forestry 336 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 Jun 11, 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 (0) 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
Resource recovery & reuse
Urban agriculture
Safe wastewater use
Soil fertility & plant nutritio
Metrics
H-Index
i10 Index
Citation Counts
71
206
18,984
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* Total H IndexRankings
Ranking Based On Selection: 2
Climate Change
Environment
Food Systems
Health
Water-Energy-Food Nexu
Metrics
H-Index
i10 Index
Citation Counts
53
171
10,376
* Total H IndexRankings
Ranking Based On Selection: 3
Climate Change Biology
Plant Physiology
Agriculture
Molecular Biology
Genetic
Metrics
H-Index
i10 Index
Citation Counts
50
97
8,858
* Total H IndexRankings
Ranking Based On Selection: 4
Soil
Water
Land and Crop Management
modellin
Metrics
H-Index
i10 Index
Citation Counts
34
164
8,611
* Total H IndexRankings
Ranking Based On Selection: 5
Natural Resource Management
Peri-urban agriculture
Agriculture Water Management
Sanitation
Soil fertilit
Metrics
H-Index
i10 Index
Citation Counts
33
84
4,660
* Total H IndexRankings
Ranking Based On Selection: 6
Inland Fisheries
Fish Stock Assessment
Culture-based Fisheries
Community-based Fisheries Managemen
Metrics
H-Index
i10 Index
Citation Counts
32
88
3,414
* Total H IndexRankings
Ranking Based On Selection: 7
Agricultural system
ecosystem services
agricultural water management
sustainabilit
Metrics
H-Index
i10 Index
Citation Counts
32
75
3,855
* Total H IndexRankings
Ranking Based On Selection: 8
Plant Pathology
Mycology
Natural Products
Post Harvest Biolog
Metrics
H-Index
i10 Index
Citation Counts
31
76
6,517
* Total H IndexRankings
Ranking Based On Selection: 9
Agricultural water management
irrigation
hydrology
biogeochemical cycle
Metrics
H-Index
i10 Index
Citation Counts
30
54
2,551
* Total H IndexRankings
Ranking Based On Selection: 10
Agricultur
Metrics
H-Index
i10 Index
Citation Counts
29
70
3,811
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* Total H IndexRankings
Ranking Based On Selection: 11
Marine Biochemistry
Nutraceuticals
Functional Foods
Food Chemistry
Phytomedicin
Metrics
H-Index
i10 Index
Citation Counts
27
40
6,148
* Total H IndexRankings
Ranking Based On Selection: 12
Plant stress physiology
Evolutionary Biology
Conservation Biology
Plant derived Natural Product
Metrics
H-Index
i10 Index
Citation Counts
27
44
3,012
* Total H IndexRankings
Ranking Based On Selection: 13
Climate Change Adaptation
Biology and Management of Invasive Alien Species
Herbicide-Resistance i
Metrics
H-Index
i10 Index
Citation Counts
26
70
2,404
* Total H IndexRankings
Ranking Based On Selection: 14
Agriculture
Plant Sciences
Plant Physiology
Agronom
Metrics
H-Index
i10 Index
Citation Counts
26
54
2,546
* Total H IndexRankings
Ranking Based On Selection: 15
Plant Pathology
Postharvest Pathology
Mycolog
Metrics
H-Index
i10 Index
Citation Counts
26
55
2,020
* Total H IndexRankings
Ranking Based On Selection: 16
Agronomy
Plant Nutrition
Crop Physiology
Crop Modelling
Bio-Statistic
Metrics
H-Index
i10 Index
Citation Counts
25
50
2,653
* Total H IndexRankings
Ranking Based On Selection: 17
Plant Scienc
Metrics
H-Index
i10 Index
Citation Counts
24
41
1,811
* Total H IndexRankings
Ranking Based On Selection: 18
Cropping Systems
Crop Physiology
Sust. Land Mgt.
Controlled Environment Agric.
Precision Agricu
Metrics
H-Index
i10 Index
Citation Counts
24
37
1,997
* Total H IndexRankings
Ranking Based On Selection: 19
agrobiodiversity & pteridology
agroforestry & TOF
conservation biology
reproductive biology
tre
Metrics
H-Index
i10 Index
Citation Counts
23
63
2,613
* Total H IndexRankings
Ranking Based On Selection: 20
Animal Genetics and Breeding
Indigenous Animal Genetic Resource
Metrics
H-Index
i10 Index
Citation Counts
23
49
2,183
* Total H IndexRankings
Ranking Based On Selection: 21
Agronomy
Crop Physiology
Climate Change Adaptation and Mitigation
Agroforestr
Metrics
H-Index
i10 Index
Citation Counts
23
46
2,131
* Total H IndexRankings
Ranking Based On Selection: 22
Marine Biotechnology
Natural products and Applied Organic Chemisr
Metrics
H-Index
i10 Index
Citation Counts
22
26
2,449
* Total H IndexRankings
Ranking Based On Selection: 23
Environmental science
waste management
climate change
Green infrastructure
disaster managemen
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,751
* Total H IndexRankings
Ranking Based On Selection: 24
Soil Microbiology
Nitrogen Fixation
Toxigenic cyanobacteria
Biofuel
Metrics
H-Index
i10 Index
Citation Counts
21
41
2,684
* Total H IndexRankings
Ranking Based On Selection: 25
Fish Population Dynamics
Fish Stock Assessment
Fisheries Management
Linear and non-linear modellin
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,038
Pay Drechsel
Metrics
H-Index
i10-Index
Citation Counts
71
206
18,984
Resource recovery & reuse
Urban agriculture
Safe wastewater use
Soil fertility & plant nutritio
Tafadzwanashe Mabhaudhi
Metrics
H-Index
i10-Index
Citation Counts
53
171
10,376
Climate Change
Environment
Food Systems
Health
Water-Energy-Food Nexu
Saman Seneweera
Metrics
H-Index
i10-Index
Citation Counts
50
97
8,858
Climate Change Biology
Plant Physiology
Agriculture
Molecular Biology
Genetic
Bharat Sharma
Metrics
H-Index
i10-Index
Citation Counts
34
164
8,611
Soil
Water
Land and Crop Management
modellin
Olufunke Cofie
Metrics
H-Index
i10-Index
Citation Counts
33
84
4,660
Natural Resource Management
Peri-urban agriculture
Agriculture Water Management
Sanitation
Soil fertilit
Upali S Amarasinghe
University of Kelaniya
Kelaniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
32
88
3,414
Inland Fisheries
Fish Stock Assessment
Culture-based Fisheries
Community-based Fisheries Managemen
Amare Haileslassie
Metrics
H-Index
i10-Index
Citation Counts
32
75
3,855
Agricultural system
ecosystem services
agricultural water management
sustainabilit
Ravi Wijesundera
University of Colombo
Colombo, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
31
76
6,517
Plant Pathology
Mycology
Natural Products
Post Harvest Biolog
Petra Schmitter
Metrics
H-Index
i10-Index
Citation Counts
30
54
2,551
Agricultural water management
irrigation
hydrology
biogeochemical cycle
Gamini Seneviratne
Metrics
H-Index
i10-Index
Citation Counts
29
70
3,811
Is Your University Ready for the Future?
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
Isuru Wijesekara
University of Sri Jayewardenepura
Nugegoda, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
27
40
6,148
Marine Biochemistry
Nutraceuticals
Functional Foods
Food Chemistry
Phytomedicin
Disna Ratnasekera
University of Ruhuna
Matara and Galle, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
27
44
3,012
Plant stress physiology
Evolutionary Biology
Conservation Biology
Plant derived Natural Product
Buddhi Marambe
University of Peradeniya
Peradeniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
26
70
2,404
Climate Change Adaptation
Biology and Management of Invasive Alien Species
Herbicide-Resistance i
Wajm De Costa
University of Peradeniya
Peradeniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
26
54
2,546
Agriculture
Plant Sciences
Plant Physiology
Agronom
Nkb Adikaram
Metrics
H-Index
i10-Index
Citation Counts
26
55
2,020
Plant Pathology
Postharvest Pathology
Mycolog
Suriyagoda Lalith
University of Peradeniya
Peradeniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
25
50
2,653
Agronomy
Plant Nutrition
Crop Physiology
Crop Modelling
Bio-Statistic
MCM Iqbal
Metrics
H-Index
i10-Index
Citation Counts
24
41
1,811
Senaratne Ranamukhaarachchi
Sri Lanka Technological Campus
Padukka, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
24
37
1,997
Cropping Systems
Crop Physiology
Sust. Land Mgt.
Controlled Environment Agric.
Precision Agricu
Dkng Pushpakumara Gamini Pushpakumara|G Pushpakumara
University of Peradeniya
Peradeniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
23
63
2,613
agrobiodiversity & pteridology
agroforestry & TOF
conservation biology
reproductive biology
tre
Pradeepa Silva
University of Peradeniya
Peradeniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
23
49
2,183
Animal Genetics and Breeding
Indigenous Animal Genetic Resource
Sarath P Nissanka
University of Peradeniya
Peradeniya, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
23
46
2,131
Agronomy
Crop Physiology
Climate Change Adaptation and Mitigation
Agroforestr
Kalpa W Samarakoon
Metrics
H-Index
i10-Index
Citation Counts
22
26
2,449
Marine Biotechnology
Natural products and Applied Organic Chemisr
Jayasinghe Guttila Yugantha
University of Ruhuna
Matara and Galle, Sri Lanka
Metrics
H-Index
i10-Index
Citation Counts
21
34
1,751
Environmental science
waste management
climate change
Green infrastructure
disaster managemen
SA Kulasooriya
Metrics
H-Index
i10-Index
Citation Counts
21
41
2,684
Soil Microbiology
Nitrogen Fixation
Toxigenic cyanobacteria
Biofuel
Sujeewa Sisira Kumara Haputhantri
Metrics
H-Index
i10-Index
Citation Counts
20
30
1,038
Fish Population Dynamics
Fish Stock Assessment
Fisheries Management
Linear and non-linear modellin