108 urn:lsid:arphahub.com:pub:ee3d5236-fccc-5ca1-bc10-ed5cb324dde0 Journal of the Bulgarian Geographical Society JBGS 2738-8107 2738-8115 Bulgarian Geographical Society 10.3897/jbgs.e79485 79485 Editorial Biodiversity Ecosystem Services Landscape Ecology Tourism Natural heritage as a source of ecosystem services for recreation and tourism in Bulgaria Nikolova Mariyana https://orcid.org/0000-0003-4878-3051 1 Nedkov Stoyan snedkov@abv.bg https://orcid.org/0000-0002-0052-9815 1 Borisova Bilyana https://orcid.org/0000-0002-3225-9514 2 Zhiyanski Miglena https://orcid.org/0000-0003-4843-6770 3 Dimitrov Stelian https://orcid.org/0000-0002-3007-9659 4 National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences Sofia Bulgaria Sofia University "St.Kliment Ohridski", Sofia, Bulgaria Sofia University "St.Kliment Ohridski" Sofia Bulgaria Forest Research Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria Forest Research Institute - Bulgarian Academy of Sciences Sofia Bulgaria Sofia University "St. Kliment Ohridski, Sofia, Bulgaria Sofia University "St. Kliment Ohridski Sofia Bulgaria

Corresponding author: Stoyan Nedkov (snedkov@abv.bg).

Academic editor: Kliment Naydenov

 2021 29 12 2021 45 3 6 801839FD-13F0-5925-BDA8-E72FFCF49F15 17 12 2021 22 12 2021 Mariyana Nikolova, Stoyan Nedkov, Bilyana Borisova, Miglena Zhiyanski, Stelian Dimitrov This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.