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Research facility · Sofia · Bulgaria

Forest Research Institute

In research, Forest Research Institute stands highest in Environmental Science (#4,331 of 6,208 worldwide), Physical Sciences (#15,920 of 21,541 worldwide) and Life Sciences (#12,764 of 14,347 worldwide), over all time.

fri.bas.bg/?lang=enROR OpenAlex
World rank, 2022–2025
#19,466
of 28,054 · #24,120 all time
Rank in Bulgaria
#53
of 92
Research works
315
▲ 43% vs 2013–17
Citations
5.4k
17.0 per fractional work
Top-10% rate
17.8%
record average 16.5%
Open access
61%
world 28%

What is Forest Research Institute known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Environmental ScienceField #4,331 of 6,208 18.2%122
Physical SciencesDomain #15,920 of 21,541 17.8%171
Life SciencesDomain #12,764 of 14,347 17.5%123

Each strip is that field’s whole ranked pool, with the notch where Forest Research Institute 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).

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: 5.97× its world share, 22 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.16× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 0.23× its world share, 0 worksImmunology and Micro…Chemistry: 1.97× its world share, 2 worksChemistryComputer Science: 0.11× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 3.54× its world share, 4 worksEarth and Planetary …Energy: 0.25× its world share, 0 worksEnergyEngineering: 0.44× its world share, 5 worksEngineeringEnvironmental Science: 8.29× its world share, 32 worksEnvironmental ScienceMaterials Science: 0.23× its world share, 1 worksMaterials ScienceHealth Professions: 0.22× its world share, 0 worksHealth ProfessionsMedicine: 0.15× its world share, 2 worksMedicineNursing: 1.32× its world share, 0 worksNursingVeterinary: 2.60× its world share, 0 worksVeterinaryArts and Humanities: 0.15× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.21× its world share, 0 worksBusiness, Management…Economics, Econometrics and Finance: 0.12× its world share, 0 worksEconomics, Econometr…Psychology: 0.05× its world share, 0 worksPsychologySocial Sciences: 0.08× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Environmental Science, 8.3×. Every wedge is a field page.

Who are the top researchers at Forest Research Institute?

Ranked on the composite score, Dimitrios Ν. Avtzis, Georgi Georgiev and G. Tsankov lead among researchers whose main affiliation is Forest Research Institute.

  1. 1 Dimitrios Ν. Avtzis Bulgaria · #1,022,943 worldwide 41 citations · 28 works
  2. 2 Georgi Georgiev Bulgaria · #1,188,463 worldwide 40 citations · 62 works
  3. 3 G. Tsankov Bulgaria · #1,371,825 worldwide 7 citations · 55 works
  4. 4 Plamen Mirchev Bulgaria · #1,488,734 worldwide 9 citations · 23 works
All ranked researchers at Forest Research Institute

Which keywords describe research at Forest Research Institute?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Invasive Species, Biodiversity Conservation, Biodiversity, Remote Sensing, Biomass Estimation, Global Warming and Conservation.

▲ 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 Change21▲ 10.0×44 topics
  2. Invasive Species9▲ 29×15 topics
  3. Biodiversity Conservation7▲ 26×9 topics
  4. Biodiversity7▲ 12×15 topics
  5. Remote Sensing6▲ 6.6×14 topics
  6. Biomass Estimation5▲ 46×3 topics
  7. Global Warming5▲ 17×5 topics
  8. Conservation5▲ 16×10 topics
  9. Biological Invasions5▲ 70×2 topics
  10. Aboveground Biomass5▲ 69×2 topics
  11. Population Dynamics4▲ 22×7 topics
  12. Tropical Forests4▲ 157×2 topics
  13. Sustainability4▲ 2.3×10 topics
  14. Climate Change Impact4▲ 24×2 topics
  15. Allometric Models4▲ 99×2 topics
  16. Carbon Stocks4▲ 178×1 topic
  17. Ecosystem Functioning4▲ 26×4 topics
  18. Ecosystem Resilience4▲ 34×4 topics
  19. Forest Management4▲ 83×4 topics
  20. Soil Properties4▲ 29×4 topics
  21. Tree Allometry4▲ 178×1 topic
  22. Bark Beetles3▲ 214×1 topic
  23. Forest Pests3▲ 214×1 topic
  24. Land Use Change3▲ 14×5 topics
  25. Ecosystem Services3▲ 10×7 topics
  26. Biological Control3▲ 24×8 topics
  27. Global Change3▲ 13×3 topics
  28. Biogeography2▲ 12×12 topics
  29. Phylogeny2▲ 22×11 topics
  30. Ecosystem2▲ 30×3 topics
  31. Forest Fires2▲ 69×1 topic
  32. Wildfire Activity2▲ 69×1 topic
  33. Dead Wood2▲ 168×1 topic
  34. Life Cycle Assessment2▲ 10×3 topics
  35. Saproxylic Beetles2▲ 168×1 topic
  36. Habitat Fragmentation2▲ 13×4 topics
  37. Host Specificity2▲ 24×3 topics
  38. Species Richness2▲ 42×2 topics
  39. Taxonomy2▲ 21×10 topics
  40. Vegetation2▲ 26×3 topics

Which research topics does Forest Research Institute publish most on?

By volume in 2022–2025: Forest ecology and management, Forest Insect Ecology and Management, Fire effects on ecosystems and Forest Ecology and Biodiversity Studies.

Forest ecology and management: 4 fractional worksForest Insect Ecology and Management: 3 fractional worksFire effects on ecosystems2Fire effects on ecosystems: 2 fractional worksForest Ecology and Biodi…2Forest Ecology and Biodiversity Studies: 2 fractional worksForest Management and Policy: 2 fractional worksLand Use and Ecosystem Services: 2 fractional worksEntomological Studies an…2Entomological Studies and Ecology: 2 fractional worksEcology and Vegetation D…2Ecology and Vegetation Dynamics Studies: 2 fractional worksWildlife Ecology and Con…1Wildlife Ecology and Conservation: 1 fractional worksTree-ring climate respon…1Tree-ring climate responses: 1 fractional works
Nature and Landscape ConservationEcologyGlobal and Planetary ChangeInsect Science2 others

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

  1. 1 Forest ecology and management Nature and Landscape Conservation 4 works
  2. 2 Forest Insect Ecology and Management Ecology 3 works
  3. 3 Fire effects on ecosystems Global and Planetary Change 2 works
  4. 4 Forest Ecology and Biodiversity Studies Insect Science 2 works
  5. 5 Forest Management and Policy Global and Planetary Change 2 works
  6. 6 Land Use and Ecosystem Services Global and Planetary Change 2 works
  7. 7 Entomological Studies and Ecology Ecology, Evolution, Behavior and Systematics 2 works
  8. 8 Ecology and Vegetation Dynamics Studies Nature and Landscape Conservation 2 works
  9. 9 Wildlife Ecology and Conservation Ecology 1 works
  10. 10 Tree-ring climate responses Atmospheric Science 1 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 available60.8%not open39.2%

World: 28% of research is openly available.

with international co-authors56.9%domestic only43.1%

World: 19% is written across borders.

How has Forest Research Institute's research output changed?

Output in 2018–2022 was 43% 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.