JIANG Rui1,2, ZHANG Zhicai1,2,3, CHEN Xi1,2,CHENG Qinbo1,2,ZHANG Lechen1,2, CHEN Xi1,2, ZHANG Lin3
(1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University,
Nanjing 210098, China;
2.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China;
3. Puding Karst Ecosystem Research Station, Chinese Ecosystem Research Network (CERN), CAS, Guiyang, 562100, China)
Abstract: The karst watershed in Southwestern China has unique water flow characteristics and hydraulic relations in peak-cluster area. In this study, based on the data of water level, water temperature, hydrochemistry and meteorological data of springs and observation wells in the small watershed, hydrologic connectivity between the karst peak and depression for a small watershed of Chenqi area, Pudding Country, Guizhou Province, China were studied, by using the statistical analysis method and the result of ERT(首次出现请写全称，并在其后面的括号内写缩写). Results show that the slope springs which reflects the effect of the epikasrt, is quick to respond to rainfall, and the aquifer of the depression is relatively slow. The hydrologic connectivity between the slopes and the depression shows different patterns, and the influences of the lateral flow of slopes and the vertical rainfall recharge are different in dry or wet seasons. The research provides a scientific basis for revealing the hydrological cycle of peak-cluster depression in karst areas.
Key words: karst; peak-cluster depression; hydrologic connectivity; karst spring; depression groundwater
EARTH AND ENVIRONMENT Vol.46, No.2, Tot No.322, 2018, Page 121-128
