نتایج جستجو برای: net recharge effective infiltration

تعداد نتایج: 828290  

2011
Stéphane Binet Jacques Mudry Catherine Bertrand Yves Guglielmi René Cova S. Binet

Key parameters controlling the recharge and behavior of Mediterranean karsts were selected in order to make a quantitative description of northeastern Mediterranean karsts on a regional scale. The methodology was applied to an actual karstic aquifer on the Siou-Blanc Plateau (France). For the recharge study, it was observed that the average yearly rainfall value and δ18O measurements in springs...

2003
Ingrid Chorus Hartmut Bartel G. Grützmacher G. Böttcher

The German Federal Environmental Agency (Umweltbundesamt – UBA) operates an experimental field on the southern outskirts of Berlin for the investigation of special aspects of environmental hygiene. One part of the field consists of a storage pond with subsequent bank filtration, artificial recharge and slow sand filtration where experiments on the behavior of hazardous substances during bank fi...

2014
Maren Dubbert Arndt Piayda Matthias Cuntz Alexandra C. Correia Filipe Costa e Silva Joao S. Pereira Christiane Werner

Semi-arid ecosystems contribute about 40% to global net primary production (GPP) even though water is a major factor limiting carbon uptake. Evapotranspiration (ET) accounts for up to 95% of the water loss and in addition, vegetation can also mitigate drought effects by altering soil water distribution. Hence, partitioning of carbon and water fluxes between the soil and vegetation components is...

Floodwater spreading for the artificial recharge of groundwater (ARG) is a logical alternative to build large dams for water resources management in dry environments so that it not only enhances water security, but also reclaims the degraded land due to the settlement of suspended load on the spreaders. However, translocation of very fine clay minerals existing in floodwater decreases the infil...

Journal: :The Science of the total environment 2004
T Datry F Malard J Gibert

Artificial recharge of urban aquifers with stormwater has been used extensively in urban areas to dispose of stormwater and compensate for reduced groundwater recharge. However, stormwater-derived sediments accumulating in infiltration beds may act as a source of dissolved contaminants for groundwater. Concentrations of hydrocarbons, heavy metals, nutrients and dissolved oxygen (DO) were monito...

2016
Angela Lundberg Christine Stumpp Bjørn Kløve James Feiccabrino

Large parts of the northern hemisphere are covered by snow and seasonal frost. Climate warming is affecting spatiotemporal variations of snow and frost, hence influencing snowmelt infiltration, aquifer recharge and river runoff patterns. Measurement difficulties have hampered progress in properly assessing how variations in snow and frost impact snowmelt infiltration. This has led to contradict...

2017
İnan Ulusoy Torleif Dahlin Bo Bergman

Managed aquifer recharge (MAR) is an efficient way to remove organic matter from raw water and, at the same time, reduce temperature variation. Two MAR sites were constructed by Karlskrona municipality on Johannishus Esker in Sweden. One of these sites, Vång, was monitored for electrical conductivity and electrical resistivity (using electrical resistivity tomography ERT) during a 9-week tracer...

Journal: :Water 2023

Groundwater plays a vital role in human consumption and irrigation many parts of Bolivia; yet, the absence policies to regulate its extraction protect groundwater recharge areas has led decline water tables threatened food security. Some municipal initiatives have been implemented develop regulations, but lack reliable hydrogeological data (such as aquifer geometry, level data, location potenti...

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