Andersson E, Tengö M, McPhearson T, Kremer P (2015). Cultural ecosystem services as a gateway for improving urban sustainability, Ecosystem Services 12: 165-168 [online May 21 2021] URL: https://doi.org/10.1016/j.ecoser.2014.08.002
Badiu DL, Iojă CI, Pătroescu M, Breuste J, Artmann M, Niță MR, Grădinaru SR, Hossua CA, Onose DA (2016). Is urban green space per capita a valuable target to achieve cities’ sustainability goals? Romania as a case study, Ecological Indicators 70: 53-66 [online May 22 2021] URL: https://doi.org/10.1016/j.ecolind.2016.05.044
Beatley T (2009). Biophilic Urbanism: Inviting Nature Back to Our Communities and Into Our Lives, William & Mary Environmental Law and Policy Review 34:210-212 [online may 25 2021] URL: https://scholarship.law.wm.edu/wmelpr/vol34/iss1/6
Berland A, Shiflett SA, William D. Shuster WD, Garmestani AS, Goddard HC, Herrmann DL, Hopton ME (2017). The role of trees in urban stormwater management. Landscape and Urban Planning 162: 167–177 [online May 5 2021] URL: https://doi.org/10.1016/j.landurbplan.2017.02.017
Breuste J, Schnellinger J, Qureshi S, Faggi A (2013). Urban Ecosystem services on the local level: Urban green spaces as providers, Ekologia (Bratislava), 32 (3): 290 – 304 [online May 29 2021] URL: https://sciendo.com/article/10.2478/eko-2013-0026
Calfapietra C, Fares S, Manes F, Morani A, Sgrigna G, Loreto F (2013). Role of Biogenic Volatile Organic Compounds (BVOC) emitted by urban trees on ozone concentration in cities: A review. Environmental Pollution 183: 71–80 [online May 20 2021] URL: https://doi.org/10.1016/j.envpol.2013.03.012
Churkina G, Grote R, Butler TM, Lawrence M (2015). Natural selection? Picking the right trees for urban greening. Environmental Science & Policy 47: 12–17 [online May 19 2021] URL: https://doi.org/10.1016/j.envsci.2014.10.014
Dwyer JF, Nowak DJ, Noble MH (2003). Sustaining urban forests, Journal of Arboriculture 29(1): 49-55 [online May 20 2021] URL: https://www.nrs.fs.fed.us/pubs/jrnl/2003/nc_2003_dwyer_001.pdf
Fitzky AC, Sandén H, Karl T, Fares S, Calfapietra C, Grote R, Saunier A, Rewald B (2019). The Interplay Between Ozone and Urban Vegetation—BVOC Emissions, Ozone Deposition, and Tree Ecophysiology. Frontiers in Forests and Global Change 2:1–17 [online May 12 2021] URL: https://doi.org/10.3389/ffgc.2019.00050
Georgia’s Second Biennial Update Report Under the United Nations Framework Convention on Climate Change, UNFCCC (2019). Ministry of Environmental Protection and Agriculture of Georgia, Tbilisi, 124 pages. P.18. Web site [online May 21 2021] URL:https://www.ge.undp.org/content/georgia/en/home/library/environment_energy/SBUR.html
Gómez-Baggethun E, Gren Å, Barton DN, Langemeyer J, McPhearson T, O’Farrell P, Andersson E, Hamstead Z, Kremer P (2013). Urban Ecosystem Services. In: Urbanization, Biodiversity and Ecosystem Services: Challenges and Opportunities (Elmqvist T et al. eds). Springer, Dordrecht, pp.175-200, Web site [online May 21 2021] URL: https://link.springer.com/content/pdf/10.1007%2F978-94-007-7088-1_11.pdf
Grey V, Livesley SJ, Fletcher TD, Szota C (2018). Establishing street trees in stormwater control measures can double tree growth when extended waterlogging is avoided, Landscape and Urban Planning 178: 122-129 [online May 21 2021] URL: https://doi.org/10.1016/j.landurbplan.2018.06.002
Higgins SL, Thomas F, Goldsmith B, Brooks SJ, Hassall C, Harlow J, Stone D, Völker S, White P (2019). Urban freshwaters, biodiversity, and human health and well‐being: Setting an interdisciplinary research agenda. WIREs Water 6 (2): 4-9 [online May 11 2021], URL: https://onlinelibrary.wiley.com/doi/epdf/10.1002/wat2.1339
i-Tee Eco, field guide v6.0 (2020), revised 07.23.2020, USDA Forest Service. We site [online May 15 2021], URL: https://www.itreetools.org/documents/274/EcoV6.FieldManual.2020.07.23.pdf
Kampelmann S (2014). Urban ecosystem services: literature review and operationalization for the case of Brussels, DULBEA Working Papers 14-01. ULB -- Universite Libre de Bruxelles [online May 10 2021], URL: http://dev.ulb.ac.be/dulbea/documents/1557.pdf
World Cities Report 2020, The Value of Sustainable Urbanization, pp. xvi, UN, United Nations Human Settlements Programme (UN-Habitat), Nairobi, Kenya, Web site [online May 11 2021] URL: https://unhabitat.org/sites/default/files/2020/10/wcr_2020_report.pdf
Kroeger T, McDonald RI, Boucher T, Zhang P, Wang L (2018). Where the people are: Current trends and future potential targeted investments in urban trees for PM10 and temperature mitigation in 27 U.S. Cities, Landscape and Urban Planning 177: 227-240 [online May 11 2021] URL: https://doi.org/10.1016/j.landurbplan.2018.05.014
Lafortezza R, Davies C, Sanesi G, Konijnendijk CC (2013). Green infrastructure as a tool to support spatial planning in European urban regions. iForest 6: 102-108 [online May 9 2021], URL: https://doi.org/10.3832/ifor0723-006
Lin BJ, Kroll CN, Nowak DJ (2020). Ecosystem service-based sensitivity analyses of i-Tree Eco. Arboriculture & Urban Forestry 46 (4): 287–306 [online May 19 2021] URL: https://www.fs.fed.us/nrs/pubs/jrnl/2020/nrs_2020_lin_001.pdf
Liu Z, He C, Zhou Y, Wu J (2014). How much of the world’s land has been urbanized, really? A hierarchical framework for avoiding confusion. Landscape Ecology 29: 763–771 [online May 19 2021] URL: https://doi.org/10.1007/s10980-014-0034-y
Santamouris M, Osmond P (2020). Increasing Green Infrastructure in Cities: Impact on Ambient Temperature, Air Quality and Heat-Related Mortality and Morbidity, Buildings 233: 4-5 [online May 10 2021] URL: https://doi.org/10.3390/buildings10120233
McCarthy MP, Best MJ, Betts RA (2010). Climate change in cities due to global warming and urban effects, Geophysical Research Letters 37: L09705 [online May 5 2021] URL: https://doi.org/10.1029/2010GL042845
National Accounts of Georgia 2019 (Statistical publication) (2021), National statistics office of Georgia, Tbilisi, 134 pages. Web site. [online May 21 2021] URL: https://www.geostat.ge/media/37667/%E1%83%99%E1%83%A0%E1%83%94%E1%83%91%E1%83%A3%E1%83%9A%E1%83%98-2019.pdf
National Statistics Office of Georgia (2019). Population as of 1 January by regions and self-governed units, National statistics office of Georgia. Web site [online May 10 2021] URL: https://www.geostat.ge/en/modules/categories/41/population
Nowak DJ, Crane DE, Stevens JC, Hoehn RE, Walton JT, Bond J (2008). A Ground-based method of assessing urban forest structure and ecosystem services. Arboriculture & Urban Forestry, 34(6):347–358 [online June 4 2021], URL: https://www.itreetools.org/documents/13/08%20UFORE.pdf
Nowak DJ, Crane DE (2002). Carbon storage and sequestration by urban trees in the USA, Environmental Pollution 116: 381–389 [online June 4 2021] URL: https://doi.org/10.1016/S0269-7491(01)00214-7
Nowak DJ, Crane DE, Stevens JC (2006). Air pollution removal by urban trees and shrubs in the United States. Urban Forestry & Urban Greening 4: 115–123 [online June 5 2021] URL: https://doi.org/10.1016/j.ufug.2006.01.007
Nowak DJ, Hirabayashi S, Bodine A, Hoehn R (2013). Modeled PM2.5 removal by trees in ten U.S. cities and associated health effects. Environmental Pollution 178: 395–402 [online June 5 2021] URL: https://doi.org/1 0.1016/j.envpol.2013.03.050
Pace R, Biber P, Pretzsch H, Grote R (2018). Modeling ecosystem services for park trees: sensitivity of i-tree eco simulations to light exposure and tree species classification. Forests 9: 1–18 [online June 7 2021] URL: https://doi.org/10.3390/f9020089
Pace R, Grote R (2020). Deposition and resuspension mechanisms into and from tree canopies: a study modeling particle removal of conifers and broadleaves in different cities. Frontiers in forests and global change 3: 26 [online June 8 2021] URL: https://doi.org/10.3389/ffgc.2020.00026
Pace R, Guidolotti G, Baldacchini C, Pallozzi E, Grote R, Nowak DJ, Calfapietra C (2021a). Comparing i-Tree Eco estimates of particulate matter deposition with leaf and canopy measurements in an urban Mediterranean Holm Oak Forest. Environmental Science and Technology 55: 6613−6622 [online June 9 2021] URL: https://doi.org/10.1021/acs.est.0c07679
Pace R, De Fino F, Rahman MA, Pauleit S, Nowak DJ, Grote R (2021b). A single tree model to consistently simulate cooling, shading, and pollution uptake of urban trees. International Journal of Biometeorology 65:277–289 [online June 10 2021] URL: https://doi.org/10.1007/s00484-020-02030-8
Rahman MA, Moser A, Rötzer T, Pauleit S (2017). Within canopy temperature differences and cooling ability of Tilia cordata trees grown in urban conditions. Building and Environment 114: 118–128 [online June 24 2021] URL: https://doi.org/10.1016/j.buildenv.2016.12.013
Rahman MA, Moser A, Rötzer T, Pauleit S (2020). Traits of trees for cooling urban heat islands: A meta-analysis, Building and Environment 170, 106606 [online June 24 2021], URL: https://doi.org/10.1016/j.buildenv.2019.106606
Rogers K, Sacre K, Goodenough J, Doick K (2015). Valuing London’s Urban Forest, Results of the London i-Tree Eco Project, Treeconomics, London, 84 pages, Web site [online May 5 2021] URL: https://www.london.gov.uk/sites/default/files/valuing_londons_urban_forest_i-tree_report_final.pdf
Rötzer T, Rahman MA, Moser-Reischl A, Pauleit S, Pretzsch H (2019). Process based simulation of tree growth and ecosystem services of urban trees under present and future climate conditions. Science of Total Environment 676: 651–664 [online May 5 2021] URL: https://doi.org/10.1016/j.scitotenv.2019.04.235
Salukvadze J, Golubchikov O (2016). City as a geopolitics: Tbilisi, Georgia — A globalizing metropolis in a turbulent region, Cities 52: 39–54 [online May 25 2021], URL: https://doi.org/10.1016/j.cities.2015.11.013
Selmi W, Selmi S, Teller J, Weber C, Rivière E, Nowak DJ (2020). Prioritizing the provision of urban ecosystem services in deprived areas, a question of environmental justice. Ambio 50:1035–1046 [online May 2 2021], URL: https://doi.org/10.1007/s13280-020-01438-1
Selmi W, Weber C, Rivière E, Blond N, Mehdi L, Nowak D (2016). Air pollution removal by trees in public green spaces in Strasbourg city, France. Urban forestry & Urban Greening 17: 192–201 [online May 2 2021] URL: https://doi.org/10.1016/j.ufug.2016.04.010
Shaddick G, Thomas ML, Mudu P, Ruggeri G, Gumy S (2020). Half the world’s population are exposed to increasing air pollution. npj Climate and atmospheric science 3, article number: 23 [online June 25 2021] URL: https://www.nature.com/articles/s41612-020-0124-2#citeas
Sicard P, Agathokleous E, Araminiene V, Carrari C, Hoshika Y, De Marco A, Paoletti E (2018). Should we see urban trees as effective solutions to reduce increasing ozone levels in cities? Environmental pollution 243: 163–176 [online June 25 2021] URL: https://doi.org/10.1016/j.envpol.2018.08.049
Tan X, Hirabayashi S, Shibata S (2021). Estimation of ecosystem services provided by street trees in Kyoto, Japan. Forests 12: 1–21 [online June 25 2021], URL: https://doi.org/10.3390/f12030311
Tbilisi in figures (2018). Tbilisi City Hall, Tbilisi, 52 pages. Web site [online June 25 2021], URL: https://tbilisi.gov.ge/img/original/2018/6/12/tbilisiinfigures.pdf
Thematic Inquiry Report of the Environment Protection and Natural Resources Committee of the Parliament of Georgia on Air Quality in Tbilisi (2019). Thematic Inquiry #ECI-19/01 (2019). Parliament of Georgia, Tbilisi, 62 pages. Web site [online June 25 2021] URL: https://parliament.leavingstone.club/storage/files/shares/tematuri-mokvleva/garemo/atmosferuli-haeri/green-report-2019-eng.pdf
Turkelboom F, Leone M, Jacobs S, Kelemen E, García-Llorente M, Baró F, Termansen M, Barton DN, Berry P, Stange E, Thoonen M, Kalóczkai Á, Vadineanu A, Castro AJ, Czúcz B, Röckmann C, Wurbs D, Odee D, Preda E, Gómez-Baggethun E, Rusch GM, Martínez Pastur G, Palomo I, Dick J, Casaer J, van Dijk J, Priess JA, Langemeyer J, Mustajoki J, Kopperoinen L, Baptist MJ, Peri PL, Mukhopadhyay R, Aszalós R, Roy SB, Luque S, Rusch V, (2018). When we cannot have it all: Ecosystem services trade-offs in the context of spatial planning, Ecosystem Services 29, Part C: 566-578 [online June 25 2021] URL: https://doi.org/10.1016/j.ecoser.2017.10.011
Unterweger PA, Schrode N, Betz O (2017). Urban Nature: Perception and Acceptance of Alternative Green Space Management and the Change of Awareness after Provision of Environmental Information. A Chance for Biodiversity Protection. MDPI Urban science 1, 3: 24 [online June 25 2021] URL: https://www.mdpi.com/2413-8851/1/3/24/htm
Wang B, Zhang Q, Cui F (2021). Scientific research on ecosystem services and human well-being: A bibliometric analysis, Ecological indicators 125, 107449 [online June 25 2021] URL: https://doi.org/10.1016/j.ecolind.2021.107449
Yessoufou K, Sithole M, Elansary HO (2020). Effects of urban green spaces on human perceived health improvements: Provision of green spaces is not enough but how people use them matters. PLOS ONE 15(9): e0239314 [online June 25 2021], URL: https://doi.org/10.1371/journal.pone.0239314