A show cave management: Anthropogenic CO2 in atmosphere of Výpustek Cave (Moravian Karst, Czech Republic)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F17%3A43913014" target="_blank" >RIV/62156489:43410/17:43913014 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/17:00095959 RIV/61989592:15310/17:73579183

Výsledek na webu

<a href="https://doi.org/10.1016/j.jnc.2016.11.007" target="_blank" >https://doi.org/10.1016/j.jnc.2016.11.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnc.2016.11.007" target="_blank" >10.1016/j.jnc.2016.11.007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A show cave management: Anthropogenic CO2 in atmosphere of Výpustek Cave (Moravian Karst, Czech Republic)

Popis výsledku v původním jazyce

Anthropogenic impact on CO2 levels was studied in the Bear Chamber of the Wypustek Cave, a show cave in the Moravian Karst (Czech Republic), during a period of active ventilation and enhanced attendance. The study showed that the natural CO2 levels were controlled by (i) the natural CO2 influxes from soils/epikarst (up to similar to 5.64 x 10(-2) mol s(-1)); and, (ii) the advective CO2 fluxes out of cave atmosphere (up to 4.66 x 10(-2) mol s(-1)). During visitor presence, the anthropogenic CO2 flux into the chamber reached up to similar to 0.13 mol s(-1) and exceeded all other CO2 fluxes. The reachable anthropogenic steady states at sufficient duration of stay (up to 2.65 x 10(-1) mol m(-3)) could exceed the natural CO2 levels by factor of more than nine based on the number of visitors. Recession analysis of anthropogenic pulses showed that intervals between individual visitor groups would have to be up to similar to 6 h long if the cave environment has to return to natural conditions. As such pauses between individual tours are hardly realizable, a risk analysis was conducted to find the consequences of breaking natural conditions. It showed that the condition under which dripwater becomes aggressive to calcite (i.e., the point when P-CO2 in cave atmosphere exceeds the hypothetical CO2 concentrations in epikarst that has participated on the water formation, P-CO2(H) =10())(-1.56) is potentially reachable under extreme conditions only (enormous visitor stay period and visitor number). In case of condensed water, however, any increase in CO2 concentration will cause an increase of water aggressiveness to calcite. Therefore, in the periods and sites of enhanced condensation, it is important to strive for preservation of natural conditions.

Název v anglickém jazyce

A show cave management: Anthropogenic CO2 in atmosphere of Výpustek Cave (Moravian Karst, Czech Republic)

Popis výsledku anglicky

Anthropogenic impact on CO2 levels was studied in the Bear Chamber of the Wypustek Cave, a show cave in the Moravian Karst (Czech Republic), during a period of active ventilation and enhanced attendance. The study showed that the natural CO2 levels were controlled by (i) the natural CO2 influxes from soils/epikarst (up to similar to 5.64 x 10(-2) mol s(-1)); and, (ii) the advective CO2 fluxes out of cave atmosphere (up to 4.66 x 10(-2) mol s(-1)). During visitor presence, the anthropogenic CO2 flux into the chamber reached up to similar to 0.13 mol s(-1) and exceeded all other CO2 fluxes. The reachable anthropogenic steady states at sufficient duration of stay (up to 2.65 x 10(-1) mol m(-3)) could exceed the natural CO2 levels by factor of more than nine based on the number of visitors. Recession analysis of anthropogenic pulses showed that intervals between individual visitor groups would have to be up to similar to 6 h long if the cave environment has to return to natural conditions. As such pauses between individual tours are hardly realizable, a risk analysis was conducted to find the consequences of breaking natural conditions. It showed that the condition under which dripwater becomes aggressive to calcite (i.e., the point when P-CO2 in cave atmosphere exceeds the hypothetical CO2 concentrations in epikarst that has participated on the water formation, P-CO2(H) =10())(-1.56) is potentially reachable under extreme conditions only (enormous visitor stay period and visitor number). In case of condensed water, however, any increase in CO2 concentration will cause an increase of water aggressiveness to calcite. Therefore, in the periods and sites of enhanced condensation, it is important to strive for preservation of natural conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal for Nature Conservation

ISSN

1617-1381

e-ISSN

—

Svazek periodika

35

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

40-52

Kód UT WoS článku

000395459400005

EID výsledku v databázi Scopus

2-s2.0-85000399260