Water Balance in Epikarst: Case study of Kakap Springs, the Eastern Karst of Gunungsewu

1st UPI International Geography Seminar 2017

Wijayanti, P.^1,2 ; Haryono, E.^2 ; Hadi, P.^2

Department of Geography Education, UNS, Jl IR. Sutarmi 36A, Surakarta, Indonesia^1

Karst Research Group Fac. Geography, University of Gadjah Mada, Yogyakarta, Indonesia^2

关键词: Epikarst;    Karst aquifer;    Karst system;    Penman method;    Rain gauges;    Three parameters;    Water balance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/145/1/012088/pdf
DOI  :  10.1088/1755-1315/145/1/012088

来源: IOP

【 摘 要 】

Kakap spring is one of the important springs in Eastern Karst of Gunungsewu. This study aims to determine the water balance in karst aquifer. The study was use three parameters to analysis the water balance in Kakap Spring. They are rain as main source, evaporation and discharge of Kakap Spring. The study was conducted by monitoring the water level for eight months in 30 minutes' interval basis to analysis discharge. Temperature based evaporation analysis used Penman method, and water input conducted by monitoring rain basis typing bucket method used rain gauge. The result showed that the values of evaporation estimated as 1186 mm (71%), discharge estimated as 457 mm (27%) and 31 mm (2%) estimated get into the deep karst system.