Bragazza, L., Buttler, A., Habermacher, J., Brancaleoni, L., Gerdol, R., Fritze, H., Hanajík, P., Laiho, R. & Johnson, D. 2012, "High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation", Global Change Biology, vol. 18, no. 3, pp. 1163-1172. 

Vaario, L.-., Fritze, H., Spetz, P., Heinonsalo, J. & Hanajìk, P. 2011, "Tricholoma matsutake dominates diverse microbial communities in different forest soils", Applied and Environmental Microbiology, vol. 77, no. 24, pp. 8523-8531.

Šimonovičová, A., Ferianc, P., Vojtková, H., Pangallo, D., Hanajík, P., Kraková, L., Feketeová, Z., Čerňanský, S., Okenicová, L., Žemberyová, M., Bujdoš, M. & Pauditšová, E. 2017, "Alkaline Technosol contaminated by former mining activity and its culturable autochthonous microbiota", Chemosphere, vol. 171, pp. 89-96. 

Hanajík, P., Gáfriková, J. & Zvarík, M. 2017, "Dehydrogenase activity in topsoil at windthrow plots in Tatra National Park", Central European Forestry Journal, vol. 63, no. 2-3, pp. 91-96.

Gáfriková, J., Hanajík, P. & Zvarík, M. 2018, "Determination of organic fractions and enzymatic activity in forest spruce soil of tatra national park", Ekologia Bratislava, vol. 37, no. 4, pp. 328-337.

Šimonovičová, A., Ferianc, P., Vojtková, H., Pangallo, D., Hanajík, P., Kraková, L., Feketeová, Z., Čerňanský, S., Okenicová, L., Žemberyová, M., Bujdoš, M. & Pauditšová, E. 2017, "Alkaline Technosol contaminated by former mining activity and its culturable autochthonous microbiota", Chemosphere, vol. 171, pp. 89-96. 

Hanajík, P., Gáfriková, J. & Zvarík, M. 2017, "Dehydrogenase activity in topsoil at windthrow plots in Tatra National Park", Central European Forestry Journal, vol. 63, no. 2-3, pp. 91-96.

Gáfriková, J., Hanajík, P. & Zvarík, M. 2018, "Determination of organic fractions and enzymatic activity in forest spruce soil of tatra national park", Ekologia Bratislava, vol. 37, no. 4, pp. 328-337.

Hanajík, P., Zvarík, M., Fritze, H., Šimkovic, I. & Kanka, R. 2016, "Composition of microbial PLFAs and correlations with topsoil characteristics in the rare active travertine spring-fed fen", Ekologia Bratislava, vol. 35, no. 4, pp. 295-308. 

Gáfriková, J., Hanajík, P., Vykouková, I., Zvarík, M., Ferianc, P., Drahovská, H. & Puškárová, A. 2019, "Dystric Cambisol properties at windthrow sites with secondary succession developed after 12 years under different conditions in Tatra National Park", Biologia, vol. 74, no. 9, pp. 1099-1114. 

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation Bragazza L., Buttler A., Habermacher J., Brancaleoni L., Gerdol R., Fritze H., Hanajik P., (...), Johnson D. (2012) Global Change Biology, 18 (3) , pp. 1163-1172. cited in: Järveoja, J., Nilsson, M. B., Gažovič, M., Crill, P. M., & Peichl, M. (2018). Partitioning of the net CO2 exchange using an automated chamber system reveals plant phenology as key control of production and respiration fluxes in a boreal peatland. Global Change Biology, 24(8), 3436-3451. doi:10.1111/gcb.14292 

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation Bragazza L., Buttler A., Habermacher J., Brancaleoni L., Gerdol R., Fritze H., Hanajik P., (...), Johnson D. (2012) Global Change Biology, 18 (3) , pp. 1163-1172. cited in: Chen, J., Luo, Y., Li, J., Zhou, X., Cao, J., Wang, R. -., . . . Zhou, L. (2017). Costimulation of soil glycosidase activity and soil respiration by nitrogen addition. Global Change Biology, 23(3), 1328-1337. doi:10.1111/gcb.13402 

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation Bragazza L., Buttler A., Habermacher J., Brancaleoni L., Gerdol R., Fritze H., Hanajik P., (...), Johnson D. (2012) Global Change Biology, 18 (3) , pp. 1163-1172. cited in: Smith, S. W., Johnson, D., Quin, S. L. O., Munro, K., Pakeman, R. J., van der Wal, R., & Woodin, S. J. (2015). Combination of herbivore removal and nitrogen deposition increases upland carbon storage. Global Change Biology, 21(8), 3036-3048. doi:10.1111/gcb.12902 

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation Bragazza L., Buttler A., Habermacher J., Brancaleoni L., Gerdol R., Fritze H., Hanajik P., (...), Johnson D. (2012) Global Change Biology, 18 (3) , pp. 1163-1172. cited in: Larmola, T., Bubier, J. L., Kobyljanec, C., Basiliko, N., Juutinen, S., Humphreys, E., . . . Moore, T. R. (2013). Vegetation feedbacks of nutrient addition lead to a weaker carbon sink in an ombrotrophic bog. Global Change Biology, 19(12), 3729-3739. doi:10.1111/gcb.12328 

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation Bragazza L., Buttler A., Habermacher J., Brancaleoni L., Gerdol R., Fritze H., Hanajik P., (...), Johnson D. (2012) Global Change Biology, 18 (3) , pp. 1163-1172. cited in: Andersen, R., Chapman, S. J., & Artz, R. R. E. (2013). Microbial communities in natural and disturbed peatlands: A review. Soil Biology and Biochemistry, 57, 979-994. doi:10.1016/j.soilbio.2012.10.003 

project VEGA 1/0365/14 (2014 - 2016) – Reciprocal influence of organic carbon fractions, enzymatic activity and structure of microbiocenosis in humic horizons of soils in Tatra National Park under different microclimate, secondary succession and forest management (principal investigator)

Project evaluated contents of organic carbon fractions in humic soil horizons during three vegetation seasons at localities under different ecological and forest management influences. We focused at contents of basic pedochemical and microbiological soil characteristics during three vegetation seasons at localities under different ecological and forest management influences. We identified reciprocal influence among studied characteristics focusing at organic carbon content during the monitoring period. Project also evaluated data gained during the monitoring period with data and knowledge achieved during former research activities in the Tatra region and we were able to gather long-term monitoring data at selected plots during three years period. Project also allowed strengthening international scientific cooperation.

project VEGA 1/0712/20 (2020 - 2022): Acquisition of representative soil data via application of innovative non-destructive methods (investigator)

The research of this on-going project is aimed on innovative methodological procedures for measuring soil properties, with a focus on obtaining the most representative data regards the in-situ conditions. Several soil properties have been quantified for many years using methods, in which the sample is exposed to aggressive solutions, that modify its original properties, and the result of subsequent measurement may not indicate the nature of the soil in conditions in-situ. As part of the project implementation, alternatives to destructive measurements of selected soil properties are sought and tested. We are focusing mainly the properties of soil organic matter and characteristics of the clay fraction.

project VEGA 1/0614/17 (2017 - 2019) Stability of soil organic matter in agricultural soils of Slovakia (investigator) /

The project was aimed on the evaluation of the stability of soil organic matter (SOM) in agricultural soils in Slovakia. Soil samples were taken mainly from southwestern Slovakia, where the soil cover is characterized by good production quality and high content of organic carbon. Stability of SOM was assessed using thermogravimetry and differential scanning calorimetry (TG-DSC), as well as by measuring the activity of selected enzymes. It was found that the stability of SOM depends on the total content of organic C in the soil. With increasing amounts of organic C in the sample, the stability of SOM decreases. Besides that, the stability of SOM is partially controlled by other properties, such as elemental composition (C, H, N, O) of SOM and characteristics of clay fraction. The results suggest that in soils of Podunajská nížina lowland, the most stable fraction of POH is bound with clay.

Proactivities for biodiversity in the regions of Slovakia. Position: expert specialist. Project duration 05/2019 - 12/2021. EU funding. The aim of the project is implementation of activities aimed at involvment of the general public in the active protection of nature and biodiversity in micro-regions, raising environmental awareness and promote solutions in a proactive way. Project is aimed at general public, to whom we want to provide relevant information on environmental issues, threat factors of its components, but also the possibilities of nature and landscape protection, green infrastructure, strengthening biodiversity and improving the overall quality of the environment in individual regions of Slovakia. Goal of the project is also to improve the awareness and involvement of key sectors and the public in the field of nature and landscape protection. Project focuses at workshops focused on the importance and protection of biodiversity in relation to nature protection and green infrastructure in individual micro-regions, guided excursions to learn about the biodiversity of micro-regions, practical management aimed at improving the state of plants, animals and habitats, creative workshops. Link: https://fns.uniba.sk/bioreg/

Project APVV-0866-12 (2013 - 2017) Evaluation of ecosystem functions and services of the cultural landscape (investigator)

The project focused on ecosystem functions and its solution consisted not only in the study of partial processes associated with soils, but its solution also required complex syntheses, which generalized the results of research into physical and chemical properties of soils and their relationship to microbiological properties and vegetation. The main result of the project in selected areas was a comprehensive view of the causes of different ecosystem services due to differences in habitat conditions, land use and management, or also due to the presence of old environmental burdens. In addition to a number of valuable publications, the project also made a great contribution in the field of education, as 21 graduates and 7 doctoral students completed their final theses during its successful implementation.