1Research advances of numerical simulation of groundwater in karst areasXU Zhongping, ZHOU Xun, CUI Xiangfei, TA Mingming, WANG Xinyun, ZHANG Ying475-4832Identification of hydrochemical sensitive factors of karst groundwater in different functional urban areasZHU Danni, ZOU Shengzhang, ZHOU Changsong, LI Lujuan, XIE Hao484-4923Attribution of spring fields and seepage calculation of Fenhe second reservoir in Xishan, Taiyuan, Shanxi ProvinceGUO Fangfang, LIANG Yongping, WANG Zhiheng, SHEN Haoyong, ZHAO Chunhong493-5004Influence of aquatic photosynthesis on diel variations of hydrochemistry in karst river: A case study of the Lijiang RiverWANG Qigang, XIAO Qiong, ZHAO Haijuan, GUO Yongli, WANG Zhijun501-5145Study of large karst springs using the wavelet analysis and Mann-Kendall methodsCHI Guangyao, XING Liting, HOU Xinyu, HUANG Linxian, YANG Yi, ZHANG Wenjing515-5266Evaluation of groundwater resource loss in middle regions of Huaying mountainKANG Xiaobing, LUO Sheng, XU Mo, LIU Hong527-5347Response of hydrogeochemical characteristics to land-use modes in exposed karst areas of northwestern Guizhou ProvinceYANG Guihua, PAN Xiaodong, YUAN Jianfei, DENG Guoshi, TANG Yeqi535-5448Evolution of land use and landscape pattern of the village area in karst mountain area over the past 50 years:A case study of Wangjiazhai area in Qingzhen City of Guizhou ProvinceXU Qian, LI Yangbing, HUANG Juan545-5549Comparison of spatio-temporal variations of soil moisture in rock desertification and secondary forest areas of Shilin, YunnanHE Beibei, SHEN Youxin, ZHU Xi'ai, LIU Zhiyong555-56110Spatial and temporal distribution of soil humidity in karst areas of Guizhou ProvinceHE Xingtong, YUAN Shujie, PAN Ti, GU Xiaoping, YU Fei562-57411Evaluation of soil environmental quality in karst mountain area based on support vector machine: A case study of a tea plantation in northern GuizhouSHANG Mengjia, ZHOU Zhongfa, WANG Xiaoyu, HUANG Denghong, ZHANG Shanshan575-58312Identification and classification prediction of fractured-vuggy reservoir type in carbonate rocksZhao Jun, LIU Yanbin, WANG Feifei, JI Yuqiang584-59113Unconformity characteristics of the top of Leikoupo Formation and their effect on reservoirs in the western Sichuan basinWANG Wenkai, XU Guoming, DAN Yong, SONG Xiaobo, WANG Qiongxian, FENG Xia, ZHANG Lu592-60114Research on forward simulation of multi-electrode spacing combined profile curves of typical karst water-rich structruesLIU Wei, GAN Fuping, ZHOU Qiyou, ZHANG Wei602-60715Monitoring to variations of vegetation cover using long-term time series remote sensing data on the Google Earth Engine cloud platformPEI Jie, NIU Zheng, WANG Li, HUANG Ni, CAO Jianhua608-61616Application of the high-density electrical resistivity method to karst geological exploration in Quanhe, Laiwu CityWU Yanan617-62317Exploratory research on buried karst paleochannels by comprehensive geophysical methods:A case study of Wanhua cave system,Chenzhou, Hunan ProvinceDU Chengliang, GAN Fuping, ZHANG Yuanhai, ZHAO Wei, LIANG Donghui624-63118Comparative study of three methods for testing hydrogen and oxygen isotope of karst water samplesYANG Hui, WANG Hua, WU Xia, TANG Wei, LAN Gaoyong, TU Linling632-637 