Human impact on underground cultural and natural heritage sites, biological parameters of monitoring and remediation actions for insensitive surfaces: Case of Slovenian show caves
Human impact on underground cultural and natural heritage sites, biological parameters of monitoring and remediation actions for insensitive surfaces: Case of Slovenian show caves Series Title:
Journal for Nature Conservation
Subjects / Keywords:
Underground Heritage ( local )
Light Eutrophication ( local ) Surface Contamination ( local ) Aerobiology ( local ) Remediation ( local ) Genre:
serial ( sobekcm )
Underground tourist cultural and natural heritage sites in Slovenia that share similar management problems with other such sites worldwide include Postojna Cave with more than a half million annual visitors and the UNESCO World Heritage Site Å kocjan Caves. The underground environment is challenged by ultrasonic noise derived from different electric devices in a broad range (10â€“123 kHz) that can be minimised with protective housings. Lamps which increase temperature and lower relative humidity should be omitted. Chlorella vulgaris thrived very well under a halogen lamp and LEDs whose spectra were modified to give a natural appearance to illuminated features and emitted photon quanta close to the photosynthetic compensation point (âˆ¼20 Î¼mol photons/m2 s). Remediation of insensitive calcite surfaces colonised by lampenflora with a 15% (v/v) solution of hydrogen peroxide (pH 7.0â€“7.5) was successful. Because visitors introduce and spread, especially by footprints, many live microorganisms (>10 000 colony-forming units per 100 cm2), measures to reduce such input should be implemented. Bacterial counts expressed as colony-forming units per m3 were more indicative for the presence/absence of tourists than were changes in carbon dioxide concentration. Not only tourists, but also external climatic conditions influenced the concentration of airborne bacteria. Microbiological parameters should be included in estimating tourist carrying capacity for sensitive underground sites. Original Version:
Journal for Nature Conservation, Vol. 22, no. 2 (2014-04-01).
University of South Florida Library Holding Location:
University of South Florida
This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.
print insert_link share get_app more_horiz
Download Options close
No images or PDF downloads are available for this resource.
Cras ut cursus ante, a fringilla nunc. Mauris lorem nunc, cursus sit amet enim ac, vehicula vestibulum mi. Mauris viverra nisl vel enim faucibus porta. Praesent sit amet ornare diam, non finibus nulla.
Cras efficitur magna et sapien varius, luctus ullamcorper dolor convallis. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce sit amet justo ut erat laoreet congue sed a ante.
Phasellus ornare in augue eu imperdiet. Donec malesuada sapien ante, at vehicula orci tempor molestie. Proin vitae urna elit. Pellentesque vitae nisi et diam euismod malesuada aliquet non erat.
Nunc fringilla dolor ut dictum placerat. Proin ac neque rutrum, consectetur ligula id, laoreet ligula. Nulla lorem massa, consectetur vitae consequat in, lobortis at dolor. Nunc sed leo odio.