• Combination of groundwater abstraction and seawater irrigation. Irrigation program helped keeping level near the salt-marsh surface. Soil salinity decreased in ponds continuously irrigated with seawater. contributed to increase plant cover long term. Groundwater is among main anthropogenic causes wetland desiccation worldwide, corrective measures must be taken avoid degradation this valuable ...

Being able to identify riparian sites that function better for nitrate removal from groundwater is critical to using efficiently the riparian zones for water quality management. For this purpose, managers need a method that is quick, inexpensive, and accurate enough to enable effective management decisions. This study assesses the precision and accuracy of a simple method using three ground wat...

The loss of snow cover and the initiation of streamflow are key triggers for both terrestrial and aquatic biota. Landscape-scale snowmelt and streamflow dynamics are difficult to estimate, however, because they integrate large spatial extents and can vary rapidly in time. Remotely sensed observations are often temporally discontinuous and point observations lack sufficient spatial density (e.g....

As the increase of nitrate concentration in groundwater has often been ascribed to an inappropriate use of liquid manure, the main purpose of this study was to better understand the factors controlling nitrate dynamics in the unsaturated zone of soils subjected to characteristic agronomic practices, and to contribute to improving Action Programmes, with reference to EU Directive 91/676, for nit...

A key parameter used in wetland hydrological and landform development models is hydraulic conductivity. Head recovery tests are often used to measure hydraulic conductivity, but the calculation techniques are usually confined to rigid soil theory. This is despite reports demonstrating the misapplication of rigid soil theory to non-rigid soils such as peats. Although values of hydraulic conducti...

On 28 January 2009, a large debris slide was triggered by prolonged rainfalls at the southern suburbs of San Benedetto Ullano (Northern Calabria). The slope movement affected fractured and weathered migmatitic gneiss and biotitic schist, and included a pre-existing landslide. A detailed geomorphologic field survey, carried out during the whole phase of mobilization, allowed to recognize the evo...

The lower slope of the Mid-Levels area, Hong Kong, is one the most heavily urbanized coastal areas in the world. A comprehensive groundwater heavy metal and trace element study was conducted in the Mid-Levels area aiming to investigate the impacts of urbanization on the aqueous distributions of these chemicals. Groundwater samples were collected in the upper natural slopes and the lower highly ...

The project of interest involving a hydroelectrical diversion tunnel through crystalline rock massif in the Alps required detailed hydrogeological study to forecast magnitude water inflows within and possible effects on groundwater flow. exhibits length 9.5 km is located right side Toce River Crevoladossola (Verbania Province, Piedmont region, northern Italy). Under geological framework Alps, L...

Estudos sobre o nível subterrâneo de altas a baixas altitudes na região amazônica, em ambientes naturais, quanto à densidade do fluxo base, são conhecimentos incipientes e não refletem sua relevância atual relacionada dinâmica da água diferentes níveis topográficos. O objetivo deste trabalho foi analisar comportamento interanual lençol freático área platô, encosta baixio obter condutividade hid...