Science Explorer Interactive view Map
University · Kandy · Sri Lanka

University of Peradeniya

In research, University of Peradeniya stands highest in Health Sciences (#1,932 of 11,982 worldwide), Medicine (#1,798 of 10,443 worldwide) and Agricultural and Biological Sciences (#732 of 3,409 worldwide), 2022–2025. Relative to its size it is most specialised in Water Science and Technology — Water Science and Technology is 5.1× its share of world research.

pdn.ac.lkROR OpenAlex
World rank, 2022–2025
#2,588
of 28,054 · #4,647 all time
Rank in Sri Lanka
#1
of 37
Research works
8.6k
▲ 57% vs 2013–17
Citations
103k
12.0 per fractional work
Top-10% rate
12.1%
record average 16.5%
Open access
56%
world 28%

What is University of Peradeniya known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Health SciencesDomain #1,932 of 11,982 8.6%479 #3236
MedicineField #1,798 of 10,443 8.7%369 #3121
Agricultural and Biological SciencesField #732 of 3,409 14.4%242 #904
Physical SciencesDomain #2,790 of 12,888 13.2%696 #4902
Life SciencesDomain #2,154 of 7,800 13.1%386 #3267
Computer ScienceField #1,441 of 4,667 18.3%87 #3082
EngineeringField #2,094 of 6,636 11.9%255 #2181
Social SciencesDomain #3,829 of 10,521 13.5%327 #3062
Social SciencesField #2,738 of 6,365 16.0%126 #2023
Environmental ScienceField #1,605 of 3,551 12.5%202 #1959

Each strip is that field’s whole ranked pool, with the notch where University of Peradeniya sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Health Sciences#3,236 #1,932
  2. Medicine#3,121 #1,798
  3. Agricultural and Biological Sciences#904 #732
  4. Physical Sciences#4,902 #2,790
  5. Life Sciences#3,267 #2,154
  6. Computer Science#3,082 #1,441
  7. Engineering#2,181 #2,094
  8. Social Sciences#3,062 #3,829
  9. Social Sciences#2,023 #2,738
  10. Environmental Science#1,959 #1,605
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does University of Peradeniya specialise in?

Where its research is concentrated relative to its size: Water Science and Technology takes 5.1× the share of its output that it takes of world research.

  1. Water Science and TechnologySubfield · 49.6 works5.1×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 2.70× its world share, 242 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.89× its world share, 90 worksBiochemistry, Geneti…Immunology and Microbiology: 1.71× its world share, 32 worksImmunology and Micro…Neuroscience: 0.42× its world share, 13 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.38× its world share, 9 worksPharmacology, Toxico…Chemical Engineering: 0.16× its world share, 1 worksChemical EngineeringChemistry: 1.02× its world share, 30 worksChemistryComputer Science: 0.59× its world share, 87 worksComputer ScienceEarth and Planetary Sciences: 1.21× its world share, 36 worksEarth and Planetary …Energy: 0.90× its world share, 16 worksEnergyEngineering: 0.90× its world share, 255 worksEngineeringEnvironmental Science: 2.15× its world share, 202 worksEnvironmental ScienceMaterials Science: 0.79× its world share, 52 worksMaterials ScienceMathematics: 0.60× its world share, 13 worksMathematicsPhysics and Astronomy: 0.10× its world share, 4 worksPhysics and AstronomyDentistry: 3.19× its world share, 29 worksDentistryHealth Professions: 1.02× its world share, 51 worksHealth ProfessionsMedicine: 1.02× its world share, 369 worksMedicineNursing: 2.46× its world share, 23 worksNursingVeterinary: 2.79× its world share, 7 worksVeterinaryArts and Humanities: 0.45× its world share, 25 worksArts and HumanitiesBusiness, Management and Accounting: 1.12× its world share, 68 worksBusiness, Management…Decision Sciences: 1.15× its world share, 21 worksDecision SciencesEconomics, Econometrics and Finance: 0.93× its world share, 38 worksEconomics, Econometr…Psychology: 0.85× its world share, 49 worksPsychologySocial Sciences: 0.53× its world share, 126 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 3.2×. Every wedge is a field page.

Who are the top researchers at University of Peradeniya?

Ranked on the composite score, Samath Dhamminda Dharmaratne, Himal A. Suraweera and Janaka Ekanayake lead among researchers whose main affiliation is University of Peradeniya.

  1. 1 Samath Dhamminda Dharmaratne Sri Lanka · #12,245 worldwide 5.5k citations · 44 works
  2. 2 Himal A. Suraweera Sri Lanka · #44,348 worldwide 502 citations · 62 works
  3. 3 Janaka Ekanayake Sri Lanka · #56,807 worldwide 668 citations · 68 works
  4. 4 F. Noordeen Sri Lanka · #113,039 worldwide 251 citations · 24 works
  5. 5 A. A. Leslie Gunatilaka Sri Lanka · #136,814 worldwide 146 citations · 34 works
  6. 6 I. A. U. N. Gunatilleke Sri Lanka · #282,319 worldwide 163 citations · 24 works
  7. 7 M. Uvais S. Sultanbawa Sri Lanka · #285,440 worldwide 89 citations · 30 works
  8. 8 Veranja Karunaratne Sri Lanka · #303,577 worldwide 94 citations · 44 works
  9. 9 Indika Gawarammana Sri Lanka · #329,209 worldwide 58 citations · 25 works
  10. 10 Subramaniam Sotheeswaran Sri Lanka · #338,929 worldwide 111 citations · 21 works
All ranked researchers at University of Peradeniya

Which keywords describe research at University of Peradeniya?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Climate Change, Sustainability, Environmental Impact, Ecosystem Services, Genetic Diversity, Machine Learning and Pathogenesis.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Epidemiology132▲ 1.77×104 topics
  2. Climate Change97▲ 1.90×66 topics
  3. Sustainability86▲ 1.87×52 topics
  4. Machine Learning68◆ 1.10×58 topics
  5. Environmental Impact65▲ 2.0×40 topics
  6. Deep Learning64◆ 0.98×60 topics
  7. Public Health43▲ 1.58×35 topics
  8. Remote Sensing42▲ 1.82×22 topics
  9. COVID-1940▲ 1.56×24 topics
  10. Ecosystem Services34▲ 4.6×10 topics
  11. Genetic Diversity34▲ 4.0×21 topics
  12. Pathogenesis33▲ 3.5×18 topics
  13. Antioxidant33▲ 2.6×40 topics
  14. Risk Factors33▲ 1.57×30 topics
  15. Nanomaterials32▲ 1.62×18 topics
  16. Food Security32▲ 3.1×14 topics
  17. Social Capital31▲ 3.1×13 topics
  18. Biodiversity31▲ 2.2×24 topics
  19. Toxicity28▲ 3.4×16 topics
  20. Health Effects25▲ 2.2×20 topics
  21. Antioxidant Activity24▲ 1.99×25 topics
  22. Wastewater Treatment23▲ 5.2×9 topics
  23. Risk Management23▲ 2.5×12 topics
  24. Vaccine Development22▲ 4.5×9 topics
  25. Heavy Metals20▲ 4.4×6 topics
  26. Antimicrobial20▲ 3.7×10 topics
  27. Land Use Change19▲ 3.4×6 topics
  28. Health Benefits19▲ 3.1×14 topics
  29. Adsorption19▲ 4.8×6 topics
  30. Principal Component Analysis17▲ 6.5×3 topics
  31. Vulnerability17▲ 4.0×6 topics
  32. Water Resources17▲ 3.7×8 topics
  33. Hydrological Modeling17▲ 3.8×5 topics
  34. Social Entrepreneurship16▲ 7.9×2 topics
  35. Entrepreneurial Orientation15▲ 9.5×1 topic
  36. Opportunity Recognition15▲ 9.5×1 topic
  37. Climate Change Impacts15▲ 6.8×6 topics
  38. Conflict15▲ 4.8×6 topics
  39. Vector Control14▲ 6.5×4 topics
  40. Political Transition12▲ 12×3 topics

Which research topics does University of Peradeniya publish most on?

By volume in 2022–2025: Entrepreneurship Studies and Influences, Asian Geopolitics and Ethnography, Child Nutrition and Water Access and Agriculture, Water, and Health.

Entrepreneurship Studies…15Entrepreneurship Studies and Influences: 15 fractional worksAsian Geopolitics and Et…11Asian Geopolitics and Ethnography: 11 fractional worksChild Nutrition and Water Access: 10 fractional worksAgriculture, Water, and …10Agriculture, Water, and Health: 10 fractional worksMosquito-borne diseases …10Mosquito-borne diseases and control: 10 fractional worksRice Cultivation and Yield Improvement: 8 fractional worksOral Health Pathology and Treatment: 8 fractional worksAdsorption and biosorpti…8Adsorption and biosorption for pollutant removal: 8 fractional worksConstruction Project Management and Performance: 8 fractional worksHeavy metals in environment: 8 fractional works
Management of Technology and InnovationPolitical Science and International RelationsNutrition and DieteticsWater Science and Technology5 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Entrepreneurship Studies and Influences Management of Technology and Innovation 15 works
  2. 2 Asian Geopolitics and Ethnography Political Science and International Relations 11 works
  3. 3 Child Nutrition and Water Access Nutrition and Dietetics 10 works
  4. 4 Agriculture, Water, and Health Water Science and Technology 10 works
  5. 5 Mosquito-borne diseases and control Public Health, Environmental and Occupational Health 10 works
  6. 6 Rice Cultivation and Yield Improvement Plant Science 8 works
  7. 7 Oral Health Pathology and Treatment Periodontics 8 works
  8. 8 Adsorption and biosorption for pollutant removal Water Science and Technology 8 works
  9. 9 Construction Project Management and Performance Management Science and Operations Research 8 works
  10. 10 Heavy metals in environment Pollution 8 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available56.1%not open43.9%

World: 28% of research is openly available.

with international co-authors23.4%domestic only76.6%

World: 19% is written across borders.

How has University of Peradeniya's research output changed?

Output in 2018–2022 was 57% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Kandy

All research institutions in Kandy

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.