In a mature karstic system, the realisation of galleries using the methodology of railway tunnel boring machine (TBM) involves particular problems due to the high risk of interference with groundwater (often subject to remarkable level variations) and with cavities and/or thick fill deposits. In order to define groundwater features it is necessary to investigate both hydrodynamic and karstifica...

The need to produce energy from clean sources has caused public administrations and private companies look for suitable places. windiness detected in the eastern area of Matese karst massif (southern Italy) favored construction wind farms electricity sources. During installation first turbines, some alterations supply drinking water, fed by springs this area, were attributed population installa...

Karst topography is a special landscape shaped by the dissolution of one or more layers of soluble bedrock, usually carbonate rock such as limestone or dolomite. Due to subterranean drainage, overland flow, extraction of water by plants and evapotranspiration, there may be very limited surface water. The hydraulic architecture that plants use to adapt to karst topography is very interesting, bu...

SWAT is a GIS-based basin-scale model widely used for the characterization of hydrology and water quality of large, complex watersheds; however, SWAT has not been fully tested in watersheds with karst geomorphology and downstream reservoir-like embayment. In this study, SWAT was applied to test its ability to predict monthly streamflow dynamics for a 1,555 ha karst watershed, Chapel Branch Cree...

Indirect indicators are critically important for recognizing hypogene karst that is too deep-seated to have explorable caves. We suggested in previous publications an extensive network of non-tectonic synclines otherwise flat-lying Eocene limestone Egypt might be such indirect indicator. proposed formed by sag layers overlying a zone today remains deep below the surface and speleogenesis result...

Karst aquifers are a particular type of groundwater system that supplies drinking water in Puerto Rico, as well as in several U.S. regions and around the world. The karst aquifers contain cave systems that are vulnerable to contamination from toxic chemicals, such as TCE. This is because these contaminants tend to be trapped in the rock formations as nonaqueous phase liquids (known as NAPLs) an...

The application of groundwater vulnerability methods has great importance for the sanitary protection zones delineation karstic sources. Source assessment karst mainly relied on European approach (European Cooperation in Science and Technology—COST action 620), which includes analysis K factor, refers to water flow through saturated zone system. In paper, two approaches have been applied, COP +...

A new subgenus and new species of anophthalmic trechine beetles, Oodinotrechus (Pingleotrechus) yinae subgen. n., sp. n., is described and illustrated from a limestone cave called Chaotianyan in southern part of Guilin karst, northeastern Guangxi Zhuang Autonomous Region. The new taxon is very different from the Maolan-Mulun congeners belonging to the nominate subgenus Oodinotrechus (s. str.) U...

In the present study, following features were investigated: variability of selected macrostructure (width annual growth ring and share latewood) wood density European spruce (Picea abies (L.) Karst.) in a cross-section trunk. The study was conducted locations northeastern range (12 research plots) southwestern (20 Poland. On testing plots, Pressler drill borehole samples taken from 15 trees. Th...