1Hydrochemical characteristics and material sources of the Riduo thermal spring in TibetLI Ming-li, DUO Ji, WANG Zhu, WU Guo-dong, JIANG Zhen-zhen, LIU Gao-ling209-2162The formation and protection of karst geothermal water resources in the main urban area of ChongqingCHENG Qun, YANG Hua-lin, ZENG Min217-2273Hydrochemical characteristics and formation mechanism of groundwater in Nanning CityMIAO Ying, KONG Xiang-sheng, SONG Zhao-jing228-2334A classification scheme of karst groundwater systems based on groundwater exploitationCHEN Ping, WANG Ming-zhang234-2375Deposition rates and element features of active sediments under drip water in Furong cave of ChongqingHUANG Chun-xia, LI Ting-yong, HAN Li-yin, LI Jun-yun, YUAN Na, WANG Hai-bo, ZHANG Tao-tao, ZHAO Xin238-2466Characteristics of hydrogen and oxygen isotopes in precipitation from october to december 2013 in Chongqing and analysis of moisture sourcesHU Han, WANG Jian-li247-2537Optimum modes of sustainable agricultural development in karst small watersheds of southwestern ChinaDAI Ming-hong, ZHANG Jun-yi, WANG La-chun, SU Wei-ci254-2598Spatial autocorrelation analysis of soil water content in a karst region of Guangxi ProvinceYANG Qi-yong, JIANG Zhong-cheng, YUAN Dao-xian, JIANG Yong-jun, SHEN Li-na260-2659Diagnosis of ecosystem health change in governing karst rocky desertification based on gridding GIS:A case in Huajiang demonstration area,GuizhouCHEN Sheng-zi, ZHOU Zhong-fa, YAN Li-hui266-27310Spatial-temporal change and driving factors of cultivated land pressure in the Chang-Zhu-Tan areaLIU Sheng-feng, ZHANG He-ping274-28011Dynamics of soil organic carbon in cropland of karst regions in western Guizhou Province during last 30 years:A case study of Puding county,Guizhou ProvinceDING Chang-huan, CI En, SHAO Jing-an, GAO Yan-hong, WANG Lian-ge, XIE De-ti281-29112Inversion characteristics of high-density resistivity method on karst conduits at varied depthsZHENG Zhi-jie, GAN Fu-ping, ZENG jie292-29713The band ratio and density slice method based on RapidEye remote sensing images and its application to investigation of karst rocky desertification:A case study in Heqing county,Yunnan ProvinceTU Jie-nan, YANG Liang, LIANG Li-xin, TONG Li-qiang, GUO Zhao-cheng, LIU Ting, HE Peng298-307 