The definition of a karst drainage basin in the aquifer area is an absolute thing to do as water resource management unit. This research aimed characterize hydrogeology Gunungsewu Karst Area upper reach Gremeng Drainage Basin. For this purpose, it was divided into three stages, namely geological survey, speleological and artificial tracer test. results indicate that observed lies two or more fo...

The objective of this study was to evaluate the relevance using excess air (EA) for characterization drain/matrix exchange in karst systems a rainfall discharge model coupled with simulation EA measured at outlet studied system. conceptual assumes linear relationship between formation and increase hydrostatic pressure capacitive part aquifer. simulated spring consists mixing water circulating d...

To determine the role of microbes in karst processes, it is necessary to investigate the ecological distribution and characteristics of soil microorganisms in karst areas. In this paper, a preliminary study was carried out in two different karst areas of Southwest China: Nongla and the Guilin Yaji Karst Experimental Site (Guangxi). Soil samples from 10–20 cm in depth were analyzed for the numbe...

The karstic Rijab Spring with an average discharge of 3290 l/s is located in the Alvand River basin in the northwest of the Zagros, Iran, which drains Asmari formation. To investigate groundwater flow in the catchment area of the Spring, the physicochemical parameters include major cations and anions, discharge, EC, pH, and temperature were studied from September 2000-2002. The results indicate...

Karst topography covers more than 1/3 of the People's Republic of China in area. The porous, fissured, and soluble nature of the underlying karst bedrock (primarily dolomite and limestone) leads to the formation of underground drainage systems. Karst conduit networks dominate this system, and rainfall takes a crucial role on water cycle at China karst area. Nitrogen loss from the karst system i...