织金洞洞穴环境CO_2浓度的空间变化分析  

Analysis of CO_2 Concentration Changes under Different Spectral Scales in Zhijin Cave Environment

作　　者：张强[1,2,3] 周忠发[1,2,3] 张绍云[1,2,3] 曹明达[1,2,3] 谢雅婷[1,2,3] 张结[1,2,3] 殷超[1,2,3] 潘艳喜 

机构地区：[1]贵州师范大学喀斯特研究院,贵阳550001 [2]贵州省喀斯特山地生态环境国家重点实验室培育基地,贵阳550001 [3]国家喀斯特石漠化防治工程技术研究中心,贵阳550001

出　　处：《地球与环境》2016年第6期654-662,共9页Earth and Environment

基　　金：国家自然科学基金项目(41361081);贵州省科技计划项目(黔科合G字[2014]4004-2号);贵州省重大应用基础研究项目(黔科合JZ字[2014]200201)

摘　　要：为进一步探究织金洞CO_2浓度空间迁移变化特征,以2015年"五一""十一"两次昼夜连续监测为基础,运用IDW插值法,对比分析其在旅游淡旺季期间不同时段的空间变化,得出以下结论:(1)织金洞的CO_2浓度变化具有明显的分段变化特征,洞口带和内部带分别代表垂直和水平方向上的波动,内部带以#21为分界,通过水平对流扩散或累积,使CO_2浓度最大值往前半段平移;(2)织金洞CO_2浓度变化同时受洞腔结构等环境因子、季节变化和游客活动的影响,以"五一""十一"两个时间段为分界的累积效应表明,游客活动大于季节变化的影响强度。To understand the variation of CO2 concentrations under different spectral and temporal scales in Zhijin Cave, Guizhou Province, China, comprehensively, continuous diurnal monitoring during holiday week of Labor Day （ 1st May 2015） and National Day （ 1st Oct 2015） , and comparative analysis of vertical and horizontal spatial changes during different periods with the methods of spatial interpretation, such as Inverse Distance Weighted（IDW） , were conducted. Results show that （1） there are obvious sectional changes in Zhijin Cave. Portal section and inside section of the cave represent vertical and horizontal fluctuation, and the in- side section was divided by #21, where CO2 horizontally flows or accumulates, making the maximum concentration of CO2 shift forward; and （2） the CO2 concentrations of the inside section of Zhijin Cave are affected by environmental factors including cave structure, seasonal fluctuation and tourist activities. The cumulative effects of CO2 concentrations reach the peak during holidays, suggesting that the influence of tourist activities is stronger than seasonal fluctuation.

关 键 词：喀斯特 洞穴环境 CO2浓度 IDW空间插值法 织金洞 

分 类 号：P642.25[天文地球—工程地质学]