岩溶洞穴内气候环境因子关系分析——以贵州省织金洞为例

织金洞为旅游洞穴，且洞内竖井以及裂隙较多，洞内封闭环境较差，因此随着洞外大气环境的变化和游客量的波动，存在夏秋两季洞内CO2浓度、湿度均高于冬春两季的现象。2015年1月至2016年1月经对织金洞内CO2浓度、气压、气温、湿度等气候环境数据进行相关性统计分析得出:夏秋两季气温与CO2浓度呈现负相关，相关系数r分别为-0.728 76和-0.656 16，冬春两季则呈正相关，两季CO2浓度与气温的相关系数r分别达0.854 52和0.938 46；洞内气候环境因子除湿度与温度的关系外，各环境因子间在SINE函数基础上拟合度较高，拟合度大部分处于0.6～0.8之间。洞内各气候环境因子的关系，经分析认为可能由于洞内外气流交换状况的季节性变化以及外界大气降水、洞内水量、上覆土壤CO2、游客量、照明设施等因素共同影响所致。 

Analysis on the relationship between climatic and environmental factors in karst caves: An example from Zhijin Cave of Guizhou Province

Zhijin Cave as a tourist cave with a poorly closed environment connects with the outside via cave tunnel and many shafts and fractures. Due to the change of atmospheric environment and tourist volume fluctuation in summer and autumn, the CO2 concentration and humidity in the cave are usually higher than that of spring and winter. The correlation statistical analysis of the cave CO2 concentration, air pressure, air temperature and humidity with data obtained in January 2015 to January 2016 was performed. Temperature and CO2 concentration showed a negative correlation, and the correlation coefficients in summer and autumn were -0.72876 and -0.65616, respectively. However, in spring and winter the temperature and CO2 concentration was positively correlated, and the correlation coefficients of the two quarter were 0.85452 and 0.93846, respectively. Except for the relationship between humidity and temperature, the fitting degrees between the other environmental factors on the basis of SINE function fitting are comparatively high, which fall in the range of 0.6-0.8. According to the analytical results, the relationship between climatic and environmental factors is believed to be heavily impacted by the seasonal tunnel air exchange, atmospheric precipitation, cave water, overlying soil CO2, tourists who visit the cave, cave lightening facilities and etc.