1Characteristics of δ13C in typical aquatic plants and carbon sequestration in the Huixian karst wetland, GuilinZHANG Cheng, XIE Yun-qiu, NING Liang-dan, YU Hong, WANG Jin-liang, LI Feng247-2522Influence of hydraulic project on the carbon cycle in the karst reservoirLI Qiang253-2573Analysis on tablets dissolution rate and carbon sink under different vegetation in north China karst area: A case study of Fenyang, Shanxi ProvinceHUANG Qi-bo, QIN Xiao-qun, LIU Peng-yu, TANG Ping-ping258-2654Development and distribution of karst subterranean streams in Chongqing, ChinaPU Jun-bing266-2795Characteristics of tufa algae community and bio-karstification at the Malinghe waterfall in GuizhouTANG Yu-hong, PAN Hong280-2866Vertical distribution of soil mechanical properties under different land use types in karst areaSUN Quan-zhong, GUO Jing, WANG Yu, PENG Can287-2917Distribution and impact factor of soil organic carbon on topsoil in karst mountain:A case study of Beibei District of ChongqingYAN Ning-zhen, CHENG Yong-yi, YANG Jian-hong, QU Ming292-2988Study on the statistical prediction model of karst groundwater table in the Jiaozuo coalmineHUANG Ping-hua, BAI Wan-bei, DENG Yong299-3049The research methodology of drought resisting wells locating in Yunnan ProvinceWANG Yu, PENG Shu-hui, WANG Zi-wei, WANG Yu-qin305-31210Analysis on the reasons for continuous declination of groundwater table in the Ciba-Gangtou village water-rich block in Kunming in recent yearsYUAN Zhong-yu, PENG Shu-hui313-31711Investigation and evaluation on heavy metal pollution in the waste water collecting depression in a lead-zinc mine of karst areaQIN Chao-ke, YI Yao, LIU Jing-jing, HE Na318-32412Forming mechanism of soil cave subside in the Fenghuang transformer substation and control measureWEI Jun-fa, MA Rong-guang, YANG Zhang-zhi, HUANG Yun-feng, DING Jian-ping325-32913Paleokarst reservoir and the formation factors of the Loushanguan group,the Cambrian system in west Hunan and HubeiCAO Jian-wen, LIANG Bin, ZHANG Qing-yu, DAN Yong330-33814Identification of oil-water interface and evaluation of oil and gas distribution in Ordovician buried hill reservoir in Lungu:A case in Lungu-well block 7DENG Xing-liang, LI Shi-yin, LIANG Bin, LI Bao-hua, PEI Guang-ping, LIU Jun-feng339-34415Characteristics of deposits and the depositional environment in the Shuijinggong cave in Bama, GuangxiZHANG Mei-liang, ZHU Xiao-yan, WU Xia, YANG He-ping, PAN Mou-cheng345-35716Characteristics and genetic mechanism of the stone forest in Sinan County, Guizhou ProvinceWANG Shuo, LI Qi-wen, ZENG Ke-feng, LIU Chao358-364 