Books and research reports

1. Barbu, I., 1981. Snow-dammages caused by cathastrophic snow-fall in 16-17 of April 1977 in North Carpatians (Bucovina). Seria a II-a ICAS. Redactia de propaganda tehnica agricola, Bucuresti.
2.  Barbu, I., 1982, Management of young mixed forests (beech, oak) under the impct of harvesting. Seria a II-a ICAS. Redactia de propaganda agricola Bucuresti, 74 p.
3. Barbu, I., 1987. Protection of spruce stands against damages caused by wind and snow in Romania. ICAS Seria a II-a. Redactia de propaganda tehnica agricola,  72 p.
4. Barbu, I., 1985, Norway-spruce - Romanian  Publications 1890 - 1985.  Statiunea ICAS Câmpulung Moldovenesc, 189 p.
5. Barbu, I., 1987. Introduction in the scientific research in Forestry. Statiunea ICAS Câmpulung Moldovenesc, 239 p.
6. Barbu, I., 1997. Intensive monitoring of deposition in Forest Ecosystems in Romania.  Forest Researche Institute: 1-56.
7. Barbu, I, Forest condition monitoring in Romania. Office National des Foretss, Departement des Recherches Techniques, 62 p.
8. Barbu, I., Cenusa, R., 2001. Natural Regeneration of Norway Spruce. Statiunea Experimentala de Cultura Molidurlui Campulung Moldovenesc, 238 p.
9. Barbu, I., Popa, I., 2003. Drought monitoring in Romanian forests. Editura Tehnica-Silvica, Statiunea Experimentala de Cultura Molidurlui Campulung Moldovenesc, 165 p.


Articles and papers in proceedings

1.      Barbu, I., 1973. Microclimatical contrasts on the mountainous slopes. In: Lucrari stiintifice studentesti. Ministerul Invatamantului. Ed. didactica si  pedagogica (coautor).
2.      Barbu, I., 1979. Meteorogical factors which influenced the snow-dammages caused by snow in 16-17 th of April 1977 in the resinous forests from Bucovina-Romania. Rev. Pad. 1.
3.      Barbu, I., 1979. Some ecological aspects concerning the  exploitation of snow-damaged trees in the resinous forests from Bucovina. Revista Padurilor 3.
4.      Barbu, I., 1980. Researches about the influence of stands-structure on the damages caused by snow in the forests from Bucovina. Revista Padurilor 5.
5.      Barbu, I., 1981. Researches concerning the influence of geomorphologic factors in the distribution of snow-damaged trees in the forests of Bucovina. In: Lucrarile celei de-a X-a Conferinte Nationale pentru Stiinta Solului. Publicatiile SNRSS, Bucuresti.
6.      Barbu, I., 1982. Mapping of vulnerability of stands by snow (white spruce and silver fir) on the basis of geomorphological conditions. Example for Bucovina mountains - North Romania. Buletinul Societatii de stiinte geografice din RSR. Vol. VI (LXXVI), Bucuresti.
7.      Barbu, I., 1982. Ecological desequilibrum in the white spruce ecosystems from North Carpatians (Bucovina). Pontus Euxinus - Studii si Cercetari vol. II.
8.      Barbu, I., 1982. Prognosis on the behavior of forests ecosystems under the action of abiotical factors (wind and snow) through mathematical methods. Pontus Euxinus - Studii si Cercetari. Vol. II. Constanta
9.      Barbu, I.,   1979. Management of white spruce young-stands. Example for man-made stands in Bucovina-Romania. Revista Padurilor 3.
10. Barbu, I., 1985. Fichtenherkunfte und Waldschaden in Rumanien. Allgemeine Forstzeischrift 4: 78-80.
11. Barbu, I.,  1986. Distribution of growth on the stem by the snow-damaged trees (crown-break). Revista Padurilor 3.
12. Barbu, I., 1987. Research on the influence of soils and stands structure on the rooting system by Norway-spruce and larch in mountainous forests (Bucovina). Anuarul muzeului judetean Suceava.
13. Barbu, I.,  1987.Optimal structures for protection-forests in Romania. Seria a II-a ICAS Bucuresti, 1987
14. Barbu, I., 1988. Christmas-tree production in the German Federal Republic. Revista Padurilor 3.
15. Barbu, I., 1988. Research on the dinamic of crown injury in silver fir (Abies alba) and their applicability for forest assessment). Revista Padurilor 4
16. Barbu, I., 1989. Influence of stand density on the stability-parameters of trees. Revista Padurilor 2: 90-94.
17. Barbu, I., 1988. Dying-tip on the silver fir in Romania. An examination of tree spatial disease clustering methodologies. In: Cunoasterea si valorificarea optima a resurselor naturale. Zividava. vol. XVII Arad.
18. Barbu, I., 1987. Biometrical parameters of root system by Norway-Spruce and larch under the influence of soil parameters and stands structures. Anuarul muzeului judetean Suceava. Fascicola stiintele naturii vol. IX.
19. Barbu, I., 1989, Research on the morphological variability of the Norway-Spruce rooting system in Carpatians (Bucovina). Anuarul muzeului judetean Suceava. Fascicola stiintele naturii, vol. X: 179-190.
20. Barbu, I., 1989. Ecological caracterisation of Romanian’s regions affected by forest decline with special regards on Silver-fir area. In: Strategii pentru asigurarea echilibrelor ecologice. Conferinta a IV-a de Ecologie Piatra Neamt.
21. Barbu, I., 1989. On the strategy of forests management in Norway-spruce stands affected by wind damages. In: Strategii pentru asigurarea echilibrelor ecologice. Conferinta a IV-a de Ecologie. Piatra Neamt.
22. Barbu, I., 1991, The disease of Silver-fir. An symptom of environment degradation.  Ed. Ceres, 279 p.
23. . Barbu, I., 1989. Ecological research in Calimani-Mountains (Carpatians-Romania). In: Memoriile sectiilor stiintifice seria IV, 1989. Ed. Academiei Române, Bucuresti , p. 189-217
24. Barbu, I., 1991 Remote-sensing applications in Forestry and Environment management. Symposium: Aplicatii ale fotogrammetriei si teledetectiei în protectia mediului . Universitatea  Suceava.
25. Barbu, I, 1992. Beschreibung der Aufnahmeflache in Runmanien. 7.12 - 7.20 in vol: Die Weisstanne in Ost und Sudost Europa (sub red W. Kramer) G. Fischer Verlag  - Stuttgart  - Germania
26. Barbu, I., 1993. La Moldavie - Bucovine : un pays et son bois. In vol. Charpentiers au travail (sub red. F. Callame ): Ed. A Die . Franta p. 19 - 28
27. Barbu, I., 1993. Influence of the hydrophysic soil parameters on the rooting system by the spruce. In: Factori si procese pedogenetice din zona temperata  Univ. „Al. I. Cuza” Iasi, Facultatea de geografie (Simpozion Stintiific
28. Barbu, I., 1994. Evolution of structure and functionality of natural and artificial spruce stands as ground for silvicultural systems. Raport Anual 1994: 15-20.
29. Barbu, I., 1995. Researches concerning the ecological reconstruction of resinous stands installed outside of their natural area in Romania. Raport anual 1995: 21.
30. Barbu, I., 1995. Research concerning the ecological reconstruction in Silver-fir (Abies alba Mill.) stands from Suceava district. Raport Anual 1995: 27 - 28.
31.  Barbu, I., 1994. Tannensterben in Rumanien. In vol: Ergebnisse des 7 Tannensymposium IUFRO S1-01-08 Okologie und Waldbau der Tanne. Altensteig. Germany.
32.  Barbu, I., 1994. Mistelbefall - verantwortlich fur ?Tannensterben In vol. Ergebnisse des 7 - Tannensymposium IUFRO S1-01-08. Altensteig – Germany.
33. Barbu, I., 1994. Influence of some ecological and stands structure characteristics on the natural regeneration  of spruce (Picea abies). In: “45 de ani de cercetare si proiectare silvica în Statiunea Brasov”, Brasov,
34. Barbu, I., 1994. Contributions on the research of ecological conditions in silver-fir stands affected by dying-away in Bucovina.  Bucovina Forestiera 2: 1-23.
35. Barbu, I., 1996. La dynamique des forets du sapin dans les derniers deux siecles en Bukovine (Carpates Orientales). In vol: 8 IUFRO - Tannen-Symposium 1996 in Jundola/Bulgarien.
37. Barbu, I., 1996. Variation de l’intensite du deperissement du sapin en fonction des facteurs de la station forestiere (Carpats Orientales)  In vol: 8 IUFRO - Tannen-Symposium in Jundola/Bulgaria
38.  Barbu, I., 1996. Influence du defficit des precipitations sur l’intensite de deperissement du sapin dans les Carpates Orientales In vol:    8 IUFRO - Tannen-Symposium 1996 in Jundola/Bulgaria .
39. Barbu, I., 1995. Research on the content of polutant ions of rainfalls in the county of Suceava in the 1991-1997. Bucovina Forestiera, 2: 37 - 40.
40. Barbu, I., .The role of the forest in the mitigation of greenhouse effects. In: Padurile si protectia mediului. Univ. Transilvania, Brasov, p. 53-58.
41. Barbu, I.,  .Methods for the evaluation of contamination-risk of freatic and mineral water in the Dorna watershed basin. In: Lucrarile celei de-a VI-a Conferinta Nationala de Ecologie, Arad.
42. Barbu, I.,  1996. Researches concerning the replacement of resinous stands planted outside of natural areas. Statiunea Experimentala de Cultura Molidului, Raport anual :20-26.
43. Barbu, I., 1996. Research on the dynamic of atmospheric deposition and nutrition of trees in some forest ecosystems). Statiunea Experimentala de Cultura Molidului, Raport anual: 35-41.
44. Barbu, I., 1996. Influence of site factors on the intensity of diyng-away of silver-fir in the Solca forest district. In: “Molidul în  contextul silviculturii durabile”: 54 - 66.
45. Barbu, I., 1996. Differentiated technologies for artificial regeneration of forests in the regions with high risk to wind damages. In: Recomandari tehnice pentru gospodarirea Padurilor montane, Statiunea Experimentala de Cultura Molidului: 1 - 17.
46. Barbu, I., 1996. Research concerning the ecological reconstruction of forest-ecosystems offered by diyng away in th Suceava county. In: Recomandari tehnice pentru gospodarirea Padurilor montane, Statiunea Experimentala de Cultura Molidului: 82 - 107.
47.  Barbu, I., 1996. Assuring protection of stands against snow and wind damage through sylvicultural thinnings and organisation of regeneration cultures. In: Recomandari tehnice pentru gospodarirea Padurilor montane, Statiunea Experimentala de Cultura Molidului: 26 - 44.
48. Barbu, I., .Die - Weisstanne (Abies alba) in Ost und Sudosteuropa (colaborator, p. 116 - 158). Ed. Gustav Fischer - Stuttgart Jena New York.
49. Barbu, I., Methods for evaluation of risk of snow damage in forests. In: Studii de Silvologie II, Ed. Academiei (sub tipar). 
50. Barbu, I, 1997. Objectives of forest policies for the maintance of mineral ions in rain samples. Bucovina Forestiera VI, 1.
51. Babru, I., Sustainable Development of Forestry in Romania. In: Addressing the Underlying Causes of Deforestation and Forest Degradation. Case Studies, Analysis and Policy Recommentation Washington. DC. USA, iit 141 pp.
52.  Barbu, I., 2000. On the traces of prof. J. Opletal. Special Issue Bucovina Forestiera, 98 p.
53.  Barbu, I., 1999. Research on the influence of litter fall in the accuracy of mesurement of mineral ions in rain samples. Bucovina Forestiera VII, 1-2: 1-9.
54.  Barbu, I., 1999. Romania. National strategy for sustainable devlopment. Ed. Nova, Bucuresti.
55.  Barbu, I., 1999. On the Sustainable Development of Forestry in  Romania. In: 4-eme Journees Scientifiques de la Foret et du Bois. ENSTIB. Epinal, 2000.
56.  Barbu, I., 1999. Researches concerning the ecological rehabilitation of mining wastes in the Calimani Mountains. In vol. Zâmbrul, molidul si jneapanul  în reîmpadurirea terenurilor situate în conditii dificile ale zonei montane: 8-27.
57.  Barbu, I., 1999. Some aspects concerning the diyng away of spruce in the timberline. In: Zâmbrul, molidul si jneapanul în reîmpadurirea terenurilor situate în conditii dificile ale zonei montane: 50-54.
58.  Barbu, I., 1999. Differentiated techinques for planting of resinous trees in the areas affected by windthrows. In: Zâmbrul, molidul si jneapanul  în reîmpadurirea terenurilor situate în conditii dificile ale zonei montane: 80-95.
59.  Barbu, I.   2000. Monitoring of atmospheric deposition in 7 forest ecosystems in Romania) Rev. Padurilor 4
60. Barbu, I., 2000. Proposal for zoning of romanian terytory in relation with the risk to snowdamages in forests. Bucovina Forestiera 1-2: 29-37.
61. Barbu, I., 2000. The forests of Suceava county. In: Lucrarile Conferintei Nationale de Stiinta Solului. Ed. Universitatii Al.I. Cuza, Iasi.
62. Barbu, I., Popa, I, 2000. Evaluation of damage in forest evosystems from Tarnita zone bz GIS techniques of spatial analysis. Revista pădurilor 6: 8-11.
63. Barbu, I., Popa, I., 2001. Monitoring of draught risk in the Romanian forests. Bucovina Forestieră 1-2: 37-51.
64. Barbu, I., Popa, I., 2001. Mapping of the Romanian teritory in relation with average lenght of periods with drought and aridity, Bucovina Forestieră 1-2: 13-23.
65. Babrbu, I., 2000. Intensive monitoring of atmospheric deposition in periode 1997-1998 in seven Romanian forests ecosystems. Revista Padurilor 4.
66. Barbu, I., 2000. Long Term Effects of Air Pollution on Selected Forest Ecosystems in the Carpathian Mountains (Retezat National Park, Romania). In vol. Effects of Air Pollution on Forest Health and Biodiversitz in Forests of the Carpathian Mountains.
67. Barbu, I, Popa, I., 2002. Dendrochronogical research in silver fir (Abies alba) stands damaged by mistletoe (Viscum album). In: Ecology and Silviculture of European Silver Fir. IUFRO – WP 1.05-16/2002 Trippstadt, Germany (A).
68.  Cenusa, R., Barbu, I., 2002. Spatial variability of some meteorological parameters in mountainous forest ecosystems. In: Academician Contantin Chirita- in memoriam. Ed. Ceres Bucuresti, p. 240-249