宜兴阳羡景区溶洞资源特征及人类活动对溶洞环境的影响

CAVE RESOURCES AND THE IMPACT OF HUMAN ACTIVITIES ON CAVE ENVIRONMENT IN YANGXIAN SCENIC SPOT OF YIXING COUNTY,JIANGSU PROVINCE

根据宜兴南部42个溶洞的调查,阐明了阳羡景区内溶洞的空间分布规律、溶洞类型及其特征.并根据1987—1988年实测的善卷洞洞穴空气CO_2含量的资料,研究了旅游溶洞中CO_2含量的空间变化、季节变化,以及旅游人数与洞穴CO_2量的关系。研究结果表明,善卷洞洞穴CO_2含量最高值为4500ppm,对人体尚无影响,但溶洞日旅游人数应控制在10000人次以内为妥。

On the basis of hte expeditions to 42 caves in the south part of Yixing county, the distribhtion, types and features of the caves in Yangxian Scenic Spot have been described. At the same time, the change of CO_2content in relation to the number of tourists ere pro-posed by means of monitoring the CO_2 content in the cave air, from March 1987 to April 1988, in Shanjuan Cave. The results suggest that because the maximum value of CO_2 con-tent is 4500ppm in Shanjuan Cave, the cave air there is harmless to human body at present, but the environmental capacity of the caves better to be controlled below 10000(person—time)per day.