1Concept of karst cave hyporheic zone and its significance in water resource managementGUO Fang, JIANG Guanghui, WANG Wenke, LIU Shaohua1-92Recession flow analysis for Longdongwan spring at Langxi karst valley in Yinjiang county,Guizhou ProvinceLIANG Risheng, ZENG Cheng, YAN Zhiwei, SHI Biao, HE Shiyi, FAN Yuhong, GUAN Jin10-183Isotope analysis on the source of nitrate contamination to groundwater in the Dong''''e hydrogeologic unitLI Yang, YANG Zhen, KANG Fengxin, LIU Jinyong, SUN Yanwei, HUANG Jingbo19-274Karst aquifer protection evaluation to the Sangu spring basin under the condition of coal miningWANG Zhenxing, LI Xiangquan, HOU Xinwei, ZHANG Chunchao, GUI Chunlei, ZUO Xuefeng28-395A comparative study on the little ice age and the"8.2 ka BP"event based on two stalagmite records from the Dongge cave,Southwest ChinaCUI Yingfang, DONG Jinguo, ZHAO Kan40-496Climatic characteristics under the influence of basin-mountain coupled topography and its influence on the ecological restoration of rocky desertification in Mengzi karst graben basin,Southwest ChinaWANG Sainan, PU Junbing, LI Jianhong, ZHANG Tao, HUO Weijie, YUAN Daoxian50-597Effects of filter sludge and organic manure soil improvement on soil hydrochemistry and net CO2 consumption of dissolution of carbonate rocksWU Zeyan, LUO Weiqun, JIANG Zhongcheng, ZHANG Cheng, HU Zhaoxin, CAO Jianhua60-698Distribution characteristics and influencing factors of soil CO2 in different land use patterns in loess hilly region in summerSHAO Mingyu, ZHANG Liankai, LIU Pengyu, QIN Xiaoqun, SHAO Tianjie, CAO Jianhua, ZHANG Chunlai70-799Spatial correlation analysis of rocky desertification and soil types in karst area:A case study of Guizhou ProvinceYANG Qing, YANG Guangbin, DAI Li, ZHAO Qingsong, LUO Yurong80-8710Analysis of land-use changes and socio-economic factors in karst mountainous areas of Guizhou and GuangxiYANG Xingyan, ZHAO Yuluan, LI Xiubin88-9911Effects of land use on spatial heterogeneity of soil bulk density,moisture and organic material in karst hilly depressions:An example of the Zhumashao depression of Nandong watershedLIU Peng, JIANG Zhongcheng, LAN Funing, LI Yanqing, Yu Yang100-10812Preference flow at rock-soil interface and its influence on soil water dynamics in the karst troughsWANG Jiarong, CHEN Xi, ZHANG Zhicai, ZHANG Runrun, ZHU Biao, GONG Yifang, LIU Hao, YUAN Shunfei109-11613Forward modeling of resistivity in random karst mediumLUO Runlin, DENG Haipeng, LI Yanan, LIU Changyang, PENG Cheng, GAO Zhu, ZHONGWei117-12314Study on application of borehole radar reflection imaging in the detection of karst areaJIA Long, MENG Yan, PAN Zongyuan, YIN Renchao124-12915Assessment on non-use value of cave tourism resources based on single-bounded dichotomy contingent valuation methods: A case study of Furong cave in ChongqingZHANG Fengyi, YANG Xiaoxia, XIANG Xu, YANG Yifeng130-13816Study on the safety cognition of cave tourism practitioners in ChinaYANG Xiaoxia, MENG Xinyuan, XIANG Xu139-147 