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University · Sofia · Bulgaria

University of Forestry

In research, University of Forestry stands highest in Agricultural and Biological Sciences (#2,626 of 3,409 worldwide), Physical Sciences (#10,062 of 12,888 worldwide) and Life Sciences (#6,955 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Plant Science — Plant Science is 7.3× its share of world research.

ltu.bgROR OpenAlex
World rank, 2022–2025
#15,415
of 28,054 · #20,852 all time
Rank in Bulgaria
#37
of 92
Research works
951
▲ 176% vs 2013–17
Citations
6.1k
6.4 per fractional work
Top-10% rate
6.6%
record average 16.5%
Open access
73%
world 28%

What is University of Forestry 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
Agricultural and Biological SciencesField #2,626 of 3,409 7.8%87 #4889
Physical SciencesDomain #10,062 of 12,888 6.5%148 #13073
Life SciencesDomain #6,955 of 7,800 7.2%108 #13416

Each strip is that field’s whole ranked pool, with the notch where University of Forestry 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. Agricultural and Biological Sciences#4,889 #2,626
  2. Physical Sciences#13,073 #10,062
  3. Life Sciences#13,416 #6,955
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 Forestry specialise in?

Where its research is concentrated relative to its size: Plant Science takes 7.3× the share of its output that it takes of world research.

  1. Plant ScienceSubfield · 40.3 works7.3×
← 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: 5.78× its world share, 87 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.99× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 0.58× its world share, 2 worksImmunology and Micro…Neuroscience: 0.17× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.74× its world share, 2 worksPharmacology, Toxico…Chemical Engineering: 0.42× its world share, 0 worksChemical EngineeringChemistry: 1.27× its world share, 6 worksChemistryComputer Science: 0.12× its world share, 3 worksComputer ScienceEarth and Planetary Sciences: 1.78× its world share, 9 worksEarth and Planetary …Energy: 0.53× its world share, 2 worksEnergyEngineering: 0.98× its world share, 46 worksEngineeringEnvironmental Science: 2.92× its world share, 46 worksEnvironmental ScienceMaterials Science: 2.76× its world share, 30 worksMaterials ScienceMathematics: 0.56× its world share, 2 worksMathematicsPhysics and Astronomy: 0.45× its world share, 3 worksPhysics and AstronomyDentistry: 0.09× its world share, 0 worksDentistryHealth Professions: 0.19× its world share, 2 worksHealth ProfessionsMedicine: 0.49× its world share, 30 worksMedicineNursing: 0.65× its world share, 1 worksNursingVeterinary: 10.52× its world share, 4 worksVeterinaryArts and Humanities: 0.06× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.51× its world share, 5 worksBusiness, Management…Decision Sciences: 0.46× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.80× its world share, 5 worksEconomics, Econometr…Psychology: 0.24× its world share, 2 worksPsychologySocial Sciences: 0.19× its world share, 7 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 10.5×. Every wedge is a field page.

Who are the top researchers at University of Forestry?

Ranked on the composite score, N. Yossifov, P. Zhelev and Nencho Deliiski lead among researchers whose main affiliation is University of Forestry.

  1. 1 N. Yossifov Bulgaria · #1,178,522 worldwide 6 citations · 33 works
  2. 2 P. Zhelev Bulgaria · #1,254,818 worldwide 13 citations · 43 works
  3. 3 Nencho Deliiski Bulgaria · #1,264,158 worldwide 16 citations · 21 works
  4. 4 A. Tashev Bulgaria · #1,310,544 worldwide 1 citations · 20 works
  5. 5 Georgi Georgiev Bulgaria · #1,312,215 worldwide 36 citations · 26 works
  6. 6 Teodora P. Popova Bulgaria · #1,517,782 worldwide 14 citations · 17 works
  7. 7 Momchil Panayotov Bulgaria · #1,610,975 worldwide 11 citations · 20 works
All ranked researchers at University of Forestry

Which keywords describe research at University of Forestry?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Biodiversity, Invasive Species, Conservation, Mechanical Properties, Antioxidant, Biogeography and Vegetation.

▲ 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. Climate Change40▲ 4.7×49 topics
  2. Biodiversity18▲ 7.9×19 topics
  3. Invasive Species18▲ 13×16 topics
  4. Mechanical Properties16▲ 5.2×12 topics
  5. Conservation15▲ 11×13 topics
  6. Sustainable Development14▲ 2.8×14 topics
  7. Sustainability13▲ 1.70×24 topics
  8. Environmental Impact12▲ 2.3×18 topics
  9. Antioxidant12▲ 5.7×23 topics
  10. Biogeography9▲ 11×15 topics
  11. Vegetation9▲ 28×3 topics
  12. Biodiversity Conservation9▲ 7.5×9 topics
  13. Population Dynamics9▲ 11×10 topics
  14. Phylogenetic Analysis9▲ 9.1×12 topics
  15. Antioxidant Activity9▲ 4.3×13 topics
  16. Genetic Diversity8▲ 6.1×13 topics
  17. Food Security8▲ 4.6×8 topics
  18. Ecology8▲ 16×7 topics
  19. Ecosystem Functioning8▲ 13×3 topics
  20. Microstructure7▲ 4.5×4 topics
  21. Natural Fibers7▲ 36×2 topics
  22. Medicinal Plants7▲ 5.7×11 topics
  23. Forest Management7▲ 38×4 topics
  24. Composites7▲ 28×1 topic
  25. Reinforced Polymers7▲ 41×1 topic
  26. Flora6▲ 73×2 topics
  27. Habitat6▲ 36×2 topics
  28. Vascular Plants6▲ 73×2 topics
  29. Bioenergy6▲ 38×3 topics
  30. Phylogeny6▲ 13×13 topics
  31. Phytogeography6▲ 88×1 topic
  32. Biomass Estimation6▲ 13×3 topics
  33. FTIR Analysis6▲ 118×1 topic
  34. Wood Chemistry6▲ 118×1 topic
  35. Biomass6▲ 17×4 topics
  36. Taxonomy6▲ 14×11 topics
  37. Soil Fertility6▲ 7.8×5 topics
  38. Uncertainty6▲ 38×2 topics
  39. Aboveground Biomass6▲ 20×2 topics
  40. GIS6▲ 25×4 topics

Which research topics does University of Forestry publish most on?

By volume in 2022–2025: Natural Fiber Reinforced Composites, Botany and Plant Ecology Studies, Wood Treatment and Properties and Lignin and Wood Chemistry.

Natural Fiber Reinforced…7Natural Fiber Reinforced Composites: 7 fractional worksBotany and Plant Ecology…6Botany and Plant Ecology Studies: 6 fractional worksWood Treatment and Prope…6Wood Treatment and Properties: 6 fractional worksLignin and Wood Chemistry5Lignin and Wood Chemistry: 5 fractional worksForest Biomass Utilization and Management: 5 fractional worksMultiferroics and related materials: 5 fractional worksForest ecology and manag…4Forest ecology and management: 4 fractional worksForest Ecology and Biodiversity Studies: 4 fractional worksFood Industry and Aquatic Biology: 3 fractional worksMarine and environmental…3Marine and environmental studies: 3 fractional works
Polymers and PlasticsPlant ScienceBuilding and ConstructionBiomedical Engineering6 others

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

  1. 1 Natural Fiber Reinforced Composites Polymers and Plastics 7 works
  2. 2 Botany and Plant Ecology Studies Plant Science 6 works
  3. 3 Wood Treatment and Properties Building and Construction 6 works
  4. 4 Lignin and Wood Chemistry Biomedical Engineering 5 works
  5. 5 Forest Biomass Utilization and Management Mechanics of Materials 5 works
  6. 6 Multiferroics and related materials Electronic, Optical and Magnetic Materials 5 works
  7. 7 Forest ecology and management Nature and Landscape Conservation 4 works
  8. 8 Forest Ecology and Biodiversity Studies Insect Science 4 works
  9. 9 Food Industry and Aquatic Biology Food Science 3 works
  10. 10 Marine and environmental studies Oceanography 3 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 available72.9%not open27.1%

World: 28% of research is openly available.

with international co-authors24.1%domestic only75.9%

World: 19% is written across borders.

How has University of Forestry's research output changed?

Output in 2018–2022 was 176% 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 Sofia

All research institutions in Sofia

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.