| 疫情背景下桂林市芦笛岩空气环境影响因素研究 |
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| 引用本文： | 潘天望,史文强,梁建平,陈伟海,汤建伟,张远海,廖如松,伍艳军,李成展,张雅君,赵荣燕,秦景莫.疫情背景下桂林市芦笛岩空气环境影响因素研究[J].中国岩溶,2021,40(6):1006-1013. |
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| 作者姓名： | 潘天望 史文强 梁建平 陈伟海 汤建伟 张远海 廖如松 伍艳军 李成展 张雅君 赵荣燕 秦景莫 |
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| 作者单位： | 1.中国地质科学院岩溶地质研究所/自然资源部、广西岩溶动力学重点实验室，广西 桂林541004 |
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| 基金项目： | 广西科技重大专项项目（桂科AA20161004-4）中国地质调查局地质调查项目DD20190672 |
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| 摘 要： | 当天然洞穴开发为旅游洞穴，人为活动输入到洞穴的能量与物质影响了洞穴本体环境。文章以桂林市代表性旅游洞穴芦笛岩为例，以2020年9月1日至10月8日洞穴温度、湿度、CO2以及游客人数作为重点参数，定时、定位观测洞穴环境关键要素变化及相互关系，进而探究疫情防控背景下洞穴空气环境特征及影响因素、旅游活动对洞穴环境的影响以及洞穴自净能力。观测结果表明:（1）受新冠肺炎疫情影响，观测期内游客人数较往年明显减少，游客活动对洞穴温度和湿度影响并不明显，洞穴内外温度和湿度曲线变化趋于一致，主要受洞外空气环境的影响；（2）游览高峰期短时间内洞内CO2浓度仍会随游客量的增多呈现规律性变化，但在旅游活动结束以后，洞内CO2浓度能迅速回归至洞穴环境背景值，未观测到明显的CO2累积现象；（3）芦笛岩本身具有一定的自净能力，观测期内受降雨和降温的影响，洞外温度显著降低，促使芦笛岩洞穴通风模式发生改变，洞穴内外气流交换加强，提高了该洞的自净能力。
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| 关 键 词： | 新冠肺炎疫情 洞穴空气环境 自净能力 旅游活动 芦笛岩 |
| 收稿时间： | 2021-04-30 |
Influencing factors of the air environment in the Reed Flute Cave under the background of COVID-19 in Guilin |
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| Abstract: | When natural caves develop into tourist caves， the energy and material input into caves by human activities will affect the environment. The objective of this study is to explore the characteristics of cave air environment and its influencing factors of the Reed Flute Cave， and the impact of tourism activities on the cave environment and cave self-purification capacity under the background of COVID-19. From September 1 to October 8，2020， the cave temperature， humidity， CO2 and the number of tourists were selected as key parameters to observe the changes of key elements of the cave environment and their relationships. The results show as follows， （1） The number of tourists during the observation period significantly reduced compared with that of that in the same period previous years. The impact of tourist activities on temperature and humidity of tourist caves was not obvious. The curve changes of temperature and humidity inside the cave， mainly affected by the change of air environment outside， tend to be consistent with those curve changes outside the cave； （2） CO2 concentration in the cave still changes regularly with the increase of tourists during peak hours. After tourism activities， CO2 concentration in the cave can quickly return to the background value of the cave environment， and no obvious CO2 accumulation is observed； （3） The Reed Flute Cave shows its self-purification capacity. During the observation period， the decrease of temperature outside the cave due to the rainfall and cooling weather makes the ventilation mode change， thus strengthening air exchange between the inside and outside of the cave. The airflow exchange improves the self-purification capacity of the cave environment. |
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