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旅游活动对洞穴环境的影响及洞穴的自净能力研究——以重庆雪玉洞为例

ISSN号：1001-5221
期刊名称：热带地理
时间：2012.5.5
页码：286-292
分类：X141[环境科学与工程—环境科学]
作者机构：[1]西南大学三峡库区生态环境教育部重点实验室,地理科学学院,重庆400715, [2]西南大学地理科学学院,重庆400715, [3]中国地质科学院岩溶地质研究所,广西桂林541004
相关基金：基金项目：国家自然科学基金项目（41072192,41103068）;中国地质调查局项目（1212011087119）;重庆市科委院士专项（CSTS,2010BC7004）：重庆市国土房管局科技项目;西南大学博士基金项目（SWUlll009）
相关项目：岩溶碳汇重要科学问题研究

作者：徐尚全|殷建军|杨平恒|周小萍|沈立成|XU Shangquan1,2,YIN Jianjun2,3,YANG Pingheng2,ZHOU|2.School of Geographical Sciences,Southwest Univer|3.Institute of Karst Genology,CAGS,Guilin 541004,C|

关键词：旅游活动, 洞穴环境, 自净能力, 雪玉洞, tourism activities, cave environments, self-purification ability, Xueyu Cave

中文摘要：

洞穴空气中的CO2对洞穴次生化学沉积物的沉积和溶蚀有重要的影响。文中基于2010—09-30--10-08对重庆雪玉洞洞穴CO2浓度、温湿度进行的为期8d的连续监测，并结合“十一”黄金周期间的客流量进行综合分析。结果发现：（1）受旅游活动的影响，洞穴内空气CO2浓度有明显的累积效应；温度变化幅度加大，但没有累积效应；由于地下河和滴水的影响，洞内空气相对湿度一直处于过饱和状态，这是温度没有形成累积效应的一个重要原因。（2）由于洞内外温差的影响，洞口处会形成由洞内向洞外流动的气流，使得近洞口处的空气CO2浓度、温度变化幅度很大。（3）受洞内外气流和地下河的影响，洞穴对空气CO2具有一定的自净能力。

英文摘要：

The CO2 in the cave air makes notable impacts on the deposition and dissolution of speleothems. In order to analyze the impacts of tourism activities on cave environments, and the cave self-purification ability, the CO2 concentration, temperature and humidity in the cave air and tourists population were monitored continuously from September 30th to October 8th, 2010. The result shows that CO2 concentration in the cave air had an obviously cumulative effect that was impacted by the tourism activities. Affected by the underground river and dripping water, the air humidity in the cave was supersaturated, leading the air temperature in the cave not to show cumulative effects. Due to influence of difference temperature between inside and outside the cave, the air flowed from inside to outside at the entrance of the cave where CO2 concentration and temperature changes dramatically. With the help of the underground river and air flow, the cave had certain self-purification ability for CO2.

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