1Study on limestone horizontal corrosive grooves in karst depressionsLI Yu-hui, DING Zhi-qiang, QIN Na, YU Xiao-ya, CHEN Xing-bo, ZHOU Tian-xiu, LIU Cheng-jing, HE Neng421-4302Hydrogeological significance of the Jiulongshan-Xiangyu syncline at Yuquanshan spingTANG Chun-lei, LIANG Yong-ping, HAN Kai, JI Yi-qun, WANG Wei-tai, ZHAO Chun-hong, SHEN Hao-yong431-4373Hydrogeochemical analysis of Wujiaying karst ground-water system boundaries,KunmingYU Lei-lei, QI Ji-hong, XU Mo438-4444The hydrogen and oxygen stable isotope analysis of the karst spring in HeilongtanHUANG Hua-cheng, LIU Hong445-4515Preliminary research on dissolution of carbonate rocks and major element release under the conditions of stagnant water and dripping waterLONG Si, CHEN Zhong-ji, ZHOU Yun-chao, ZHANG Chun-lai452-4596Quantitative identification of Conduit flow and crack flow based on the spring hydrograph analysisKE Ting-ting, SHU Long-cang460-4677Reviewed research on the hot springs in ChongqingZHANG Yu, YANG Ping-heng, WANG Jian-li, XIE Shi-you, LUO Shun-qing, FAN Xin-qing468-4788Progress in the study of paleoclimate reconstruction from speleothem uranium and its isotopeCHEN Qiong, CHEN Lin, HUANG Jia-yi, LIU Shu-hua, YANG Liang, MI Xiao-jian, ZHOU Hou-yun479-4859Variation characteristics of stable isotopes in different water bodies in Southwestern China monsoon area---A case study of Beibei District,ChongqingLIU Meng-jiao, WANG Yong, ZHANG Yao-hua, LI Guo486-49410Development features and formation mechanisms of karst collapses in the Tailai basin,Shandong ProvinceWANG Yan-ling, CHEN Wei-qing, JIANG Xiao-zhen, GUAN Zhen-de495-50611Formation mechanism and development process of karst collapses in Tanluo town of Nanning CitySHI Shu-jing, ZHANG Qin-jun, KANG Zhi-qiang507-51412Influence factors and mathematical models of karst collapsesZHAO Bo-chao, ZHU Bei, WANG Hong-yuan, LAI Bing-lin515-52113Research on the content construction of karst cave guide words based on the AHP methodXIANG Xu, YANG Xiao-xia, SHI Ding-fang522-52814Review on cave tourism security at home and abroadMENG Xin-yuan, YANG Xiao-xia, XIANG Xu, SHI Ding-fang529-537