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北京石花洞空气环境主要因子季节性变化特征研究

班凤梅 蔡炳贵

班凤梅, 蔡炳贵. 北京石花洞空气环境主要因子季节性变化特征研究[J]. 中国岩溶, 2011, 30(2): 132-137. doi: 10.3969/j.issn.1001-4810.2011.02.003
引用本文: 班凤梅, 蔡炳贵. 北京石花洞空气环境主要因子季节性变化特征研究[J]. 中国岩溶, 2011, 30(2): 132-137. doi: 10.3969/j.issn.1001-4810.2011.02.003
BAN Feng-mei, CAI Bing-gui. Research on seasonal variations of the air’s main environmental factors in the Shihua Cave, Beijing[J]. CARSOLOGICA SINICA, 2011, 30(2): 132-137. doi: 10.3969/j.issn.1001-4810.2011.02.003
Citation: BAN Feng-mei, CAI Bing-gui. Research on seasonal variations of the air’s main environmental factors in the Shihua Cave, Beijing[J]. CARSOLOGICA SINICA, 2011, 30(2): 132-137. doi: 10.3969/j.issn.1001-4810.2011.02.003

北京石花洞空气环境主要因子季节性变化特征研究

doi: 10.3969/j.issn.1001-4810.2011.02.003
基金项目: 山西省高校科技开发项目(2010113)、全球变化研究国家重大科学研究计划2010CB950101课题

Research on seasonal variations of the air’s main environmental factors in the Shihua Cave, Beijing

  • 摘要: 洞穴大气CO2浓度不仅是影响洞穴沉积物沉积(或者溶蚀)的重要因素之一,而且在旅游洞穴,它关系到沉积物景观的稳定性以及旅游环境的舒适性。本文通过对石花洞洞穴大气温度、湿度及CO2浓度近4个水文年的观测,结果表明:(1)洞穴温度在15℃上下波动,夏季约高1℃,主要与洞内外温差的季节性变化和旅游活动有关;(2)洞穴CO2浓度随着大气温度上升而缓慢升高,至每年的7月上旬雨季来临时,气温、降水及土壤中CO2大幅提高,降水溶解大量的土壤CO2并渗入洞穴中,导致洞穴CO2浓度迅速上升,8月观测到的最高浓度可达到4334ppm,在雨季结束后,随着大气温度降低,CO2浓度缓慢下降,2月份平均值达到最低,为360~458ppm。另外,在5月份和10月份的旅游黄金周,旅游人数的增加,洞穴CO2浓度异常增高。在进行洞穴管理与规划时,应综合考虑自然和人为因素对洞穴的影响。

     

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  • 收稿日期:  2011-04-05
  • 发布日期:  2011-06-25

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