Fuzzy analysis model and methodology for aquifer vulnerability evaluation;

According to the lithology and structural types of rock layers and the statistical parameters of specific water yields of boreholes in karst aquifers at peripheries of the Ordos basin,four different structural types of karst aquifer media are distinguished and the systematic quantitative statistical analysis of the specific water yields of boreholes in various media with different struc.

There are well developed vertical zones in the karst aquifers in the peak forest plain system of Laibin County, middle of Guangxi.

Karst aquifer is a multiple media system which is characterized by groundwater instead of surface water due to the high infiltration rates and the karst morphology developed comparing with non-karst system.

Transformations and hydraulic captures of petrochemical contaminants in a karst fractured aquifer;

At corrosion moisture rock strata lead swimming skill,underground river survey and coals under corrosion mositure rock strata rxploit method technology go on and study safely,Its overall train of thought is:Adopt many kinds of karst project things and visit the means of reconnoitring,the space form to the moisture body of corrosion is surveyed,Find out unde.